Journal articles: 'HIGH HEAT RESISTANT'

1

Eklund, Wayne, David Ford, and Marc Miller. "High-heat-resistant powder coatings." Metal Finishing 96, no. 9 (September 1998): 11–12. http://dx.doi.org/10.1016/s0026-0576(98)81401-3.

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Tao, Zhenghong, Nantiya Viriyabanthorn, Bhavjit Ghumman, Carol Barry, and Joey Mead. "Heat Resistant Elastomers." Rubber Chemistry and Technology 78, no. 3 (July 1, 2005): 489–515. http://dx.doi.org/10.5254/1.3547893.

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Abstract This paper reviews the different types of heat resistant elastomers and the effects of compounding on the high temperature performance of these materials. Degradation mechanisms and testing procedures are discussed briefly. New developments in improving high temperature resistance are presented.

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Habib, Firdous, and Madhu Bajpai. "UV Curable Heat Resistant Epoxy Acrylate Coatings." Chemistry & Chemical Technology 4, no. 3 (September 15, 2010): 205–16. http://dx.doi.org/10.23939/chcht04.03.205.

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Polymeric materials are exposed to high temperatures that results in lowering of the film integrity. A blend of an epoxy resin with the silicone acrylate resin was developed to provide high heat resistance UV cured coatings. Earlier siliconized epoxy coatings had been developed by conventional curing. But due to environmental awareness, high productivity rate, low process costs and energy saving UV curable coatings are enjoying considerable growth. Thermally stable UV cured coatings used in the present study were developed from silicone acrylate and epoxy acrylate resin with different diluents and photoinitiator. Such coatings provide higher thermal stability (693 K) along with physical and chemical resistance. In addition, such coatings can also be obtained by using functional amino silanes. The resin developed provides a simple and practical solution to improve heat resistance along with physical and chemical resistance of the UV cured coatings. The purpose of this research paper is to develop UV curable heat resistant coatings by the combination of inorganic and organic polymer, taking epoxy acrylate as a base resin.

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Veselkov, Sergey, Olga Samoilova, Nataliya Shaburova, and Evgeny Trofimov. "High-Temperature Oxidation of High-Entropic Alloys: A Review." Materials 14, no. 10 (May 16, 2021): 2595. http://dx.doi.org/10.3390/ma14102595.

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Over the past few years, interest in high-entropic alloys (HEAs) has been growing. A large body of research has been undertaken to study aspects such as the microstructure features of HEAs of various compositions, the effect of the content of certain elements on the mechanical properties of HEAs, and, of course, special properties such as heat resistance, corrosion resistance, resistance to irradiation with high-energy particles, magnetic properties, etc. However, few works have presented results accumulated over several years, which can complicate the choice of directions for further research. This review article presents the results of studies of the mechanisms of high-temperature oxidation of HEAs of systems: Al-Co-Cr-Fe-Ni, Mn-Co-Cr-Fe-Ni, refractory HEAs. An analysis made it possible to systematize the features of high-temperature oxidation of HEAs and propose new directions for the development of heat-resistant HEAs. The presented information may be useful for assessing the possibility of the practical application of HEAs in the aerospace industry, in nuclear and chemical engineering, and in new areas of energy.

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Sukegawa, Atsuhiko M., Koichi Okuno, and Shinji Sakurai. "High-Heat-Resistant Neutron Shielding Resin." Nuclear Technology 168, no. 2 (November 2009): 553–58. http://dx.doi.org/10.13182/nt09-a9242.

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Blinov, V. M., I. O. Bannykh, and T. N. Zvereva. "High-plasticity heat-resistant 03Kh14G16N6Yu-type steels with heat-and deformation-resistant austenite." Russian Metallurgy (Metally) 2008, no. 4 (August 2008): 329–35. http://dx.doi.org/10.1134/s0036029508040101.

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Van Boeijen, Ineke K. H., Christof Francke, Roy Moezelaar, Tjakko Abee, and Marcel H. Zwietering. "Isolation of Highly Heat-Resistant Listeria monocytogenes Variants by Use of a Kinetic Modeling-Based Sampling Scheme." Applied and Environmental Microbiology 77, no. 8 (February 25, 2011): 2617–24. http://dx.doi.org/10.1128/aem.02617-10.

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ABSTRACTStable high-hydrostatic-pressure (HHP)-resistantListeria monocytogenesLO28 variants were previously isolated and characterized. These HHP variants were also more resistant to heat. In addition, nonlinear heat inactivation kinetics pointed toward the existence of heat-resistant variants, although these could not be isolated so far. In this study, we used kinetic modeling of inactivation curves of two isolated HHP variants and their wild type, and this revealed that the probability of finding resistant variants should depend on the nature of the inactivation treatment and the time of exposure. At specific heat and HHP conditions, resistant LO28 and EGDe variants were indeed isolated. Resistant LO28 variants were even isolated after a heat inactivation at 72°C in milk, and these variants showed high resistance to standard pasteurization conditions. The increased resistance of part of the isolated LO28 and EGDe variants was due to mutations in theirctsRgenes. For the variants whosectsRgenes and upstream regions were not altered, the mechanisms leading to increased resistance remain to be elucidated. This research showed the strength of kinetic modeling in unraveling the causes of nonlinear inactivation and facilitating the isolation of heat-resistantL. monocytogenesvariants.

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Skulsky, V. Yu, V. V. Zhukov, M. A. Nimko, S. I. Moravetsky, and L. D. Mishchenko. "Evaluation of susceptibility to temper brittleness of heat-resistant steels using high-temperature testing." Paton Welding Journal 2016, no. 2 (February 28, 2016): 22–27. http://dx.doi.org/10.15407/tpwj2016.02.04.

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Kamoshida, Mamoru, Takeshi Hiranuma, and Masashi Shimizu. "ICONE15-10362 DEVELOPMENT OF HEAT-RESISTANT NEUTRON SHIELDING RESIN FOR HIGH PAYLOAD METAL CASK." Proceedings of the International Conference on Nuclear Engineering (ICONE) 2007.15 (2007): _ICONE1510. http://dx.doi.org/10.1299/jsmeicone.2007.15._icone1510_183.

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10

Waku, Yoshiharu. "High Temperature Strength of Heat-Resistant Ceramics." Materia Japan 37, no. 11 (1998): 925. http://dx.doi.org/10.2320/materia.37.925.

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Pavlovskii, V. A. "Heat Resistant Coatings on High-Temperature Metals." Protection of Metals 40, no. 4 (July 2004): 358–61. http://dx.doi.org/10.1023/b:prom.0000036957.69794.8a.

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Abd El-Wahab, H., A. M. Hassan, A. M. Naser, O. A. Fouad, A. M. El-Din, and O. A. G. Wahba. "Preparation and evaluation of nanosized mixed calcium iron oxide (CaFe2O4) as high heat resistant pigment in paints." Pigment & Resin Technology 44, no. 3 (May 5, 2015): 172–78. http://dx.doi.org/10.1108/prt-12-2013-0114.

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Purpose – The purpose of this paper was to prepare and evaluate a nanosized mixed calcium iron oxide as a high heat-resistant pigment. Heat-resistant pigments can be defined as chemical substances that impart color to a substrate or binder and retain their color and finish at elevated temperatures. Mixed metal oxides have been widely used as pigments in coating formulations. Design/methodology/approach – This work presents synthesis of nanosized calcium iron oxide as an inorganic pigment by using simple synthesis technique, namely, solid-state calcination method, to study its heat and corrosion resistance. The prepared pigment was characterized by using X-ray diffraction, infrared spectroscopy, scanning electron microscopy and inductive coupling plasma. It was incorporated into paint formulations, and the heat, corrosion and mechanical resistance of dry paint film was evaluated. Findings – In this work, the prepared calcium iron oxide pigment showed excellent heat and corrosion resistance. Research limitations/implications – Heat-resistant coatings are required for industrial applications, mainly for reactors, exhaust pipes, space craft, stacks and similar equipments that are permanently and occasionally exposed to elevated temperatures. It was previously quite difficult to formulate heat-resistant organic coatings because of binder deficiencies; new vehicles for such applications are now available. Thus, the development of silicon resins has markedly advanced the utility of heat-resistant paints. High-temperature pigments are inorganic chemical compounds that impart and retain their color and finish to a substrate or binder at elevated temperatures. Practical implications – The nanosized mixed calcium iron oxide could be used as a pigment in paint formulations. It was found that it significantly enhances the heat, corrosion and mechanical resistance. It can also find numerous applications in other paint formulations for surface coating. Originality/value – The paper shows how the pigment consisting nanosized mixed calcium iron oxide could be used in heat-resistant paint formulations for coating metal surfaces.

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Tu, Zhiwei, Peter Setlow, Stanley Brul, and Gertjan Kramer. "Molecular Physiological Characterization of a High Heat Resistant Spore Forming Bacillus subtilis Food Isolate." Microorganisms 9, no. 3 (March 23, 2021): 667. http://dx.doi.org/10.3390/microorganisms9030667.

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Bacterial endospores (spores) are among the most resistant living forms on earth. Spores of Bacillus subtilis A163 show extremely high resistance to wet heat compared to spores of laboratory strains. In this study, we found that spores of B. subtilis A163 were indeed very wet heat resistant and released dipicolinic acid (DPA) very slowly during heat treatment. We also determined the proteome of vegetative cells and spores of B. subtilis A163 and the differences in these proteomes from those of the laboratory strain PY79, spores of which are much less heat resistant. This proteomic characterization identified 2011 proteins in spores and 1901 proteins in vegetative cells of B. subtilis A163. Surprisingly, spore morphogenic protein SpoVM had no homologs in B. subtilis A163. Comparing protein expression between these two strains uncovered 108 proteins that were differentially present in spores and 93 proteins differentially present in cells. In addition, five of the seven proteins on an operon in strain A163, which is thought to be primarily responsible for this strain’s spores high heat resistance, were also identified. These findings reveal proteomic differences of the two strains exhibiting different resistance to heat and form a basis for further mechanistic analysis of the high heat resistance of B. subtilis A163 spores.

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14

Ishikawa, Toshihiro. "Heat-Resistant Inorganic Fibers." Advances in Science and Technology 89 (October 2014): 129–38. http://dx.doi.org/10.4028/www.scientific.net/ast.89.129.

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Up to now, many types of inorganic fibers have been developed. The main purpose is to develop composite materials with lightweight and high fracture toughness. Of these, carbon fiber has already established a very big market. By the way, representative oxide fibers (alumina/silica-based fibers) show heat-resistance’s limitation at around 1200°C. In order to improve the heat-resistance, some types of eutectic oxide-fibers have been studied. On the other hand, SiC fibers with both heat-resistance and oxidation-resistance were developed over 30 years ago. After that, lots of improvements have been performed, and finally several types of excellent heat-resistant SiC-polycrystalline fibers, which can be used up to about 1800°C, were developed from polycarbosilane. Using these fibers, lots of applications have been considered in the fields of aerospace, nuclear system, and so on. Furthermore, making the best use of the aforementioned production process, several types of functional ceramic fibers with gradient-like functional surface layers also have been developed. In this paper, of these inorganic fibers, heat-resistant SiC fibers will be addressed along with historical view point on ceramic fibers.

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Wang, Zheng Shun, and Zhao Hui Zhen. "Study on the Silicone Coating with Heat Insulation and Resistance." Advanced Materials Research 680 (April 2013): 35–38. http://dx.doi.org/10.4028/www.scientific.net/amr.680.35.

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Experimental choose methyl-trichlorosilane, di-methyl-dichlorosilane and phenyl trichlorosilane synthetic organic silicon resin, add white mica powder, aluminum silicate, titanium pigment, zinc phosphate as packing, system high temperature insulation coating. For after high temperature resistant coating surface coating of tin model coating physical mechanical properties and high temperature resistant, heat insulation temperature difference of performance test, the results indicate that the system of high temperature resistant coating resistant to 400 ~ 500 °C high temperature, and has good high temperature resistance, heat insulation performance, etc.

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Бессмертный, Василий, Vasiliy Bessmertnyy, Оксана Соколова, Oksana Sokolova, Надежда Бондаренко, Nadezhda Bondarenko, Диана Бондаренко, et al. "PLASMACHEMICAL MODIFICATION OF THERMAL INSULATED BLOCKS WITH DECORATIVE COATING." Bulletin of Belgorod State Technological University named after. V. G. Shukhov 4, no. 3 (April 10, 2019): 85–92. http://dx.doi.org/10.34031/article_5ca1f6331ec888.51255959.

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The impact of plasma of an arc plasmatron on plasmochemical modification of a two-layer heat-resistant decorative covering on the protecting foam glass blocks is investigated. The optimum technological parameters of plasma processing of such blocks with a preliminary basis of finely divided glass containers and high-quality glass breakage are determined. It is shown that the texture and quality of a two-layer heat-resistant decorative covering are affected by speed characteristics of the plasma torch. It is established experimentally that when the arc-plasma reflow rate is 5 mm /s, a continuous wavy coating is formed on the surface of the foam glass block, and at 10 mm /s – a continuous coating with even spill. Intermediate heat-resistant and basic compositions of decorative two-layer coating for plasma-chemical modification of enclosing blocks of heat-insulating materials have been developed. The intermediate heat-resistant structure includes the following ingredients: heat-resistant aluminous cement, crushed and fractioned high-aluminous refractory material, liquid glass. The basic structure includes mixture of fine ground glass powder of tare and high-quality glasses with the crushed high-aluminous refractory material. The following performance indicators are investigated: adhesion strength of the coating with the matrix, frost resistance, microhardness, acid resistance, water resistance, abrasion resistance, moisture resistance and resistance to neutral salt spray test.

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Костылева, Е. И., and А. Н. Новиков. "HEAT-RESISTANT POLYORGANOSILOXANE DIELECTRICS." Южно-Сибирский научный вестник, no. 1(41) (February 28, 2022): 70–75. http://dx.doi.org/10.25699/sssb.2022.41.1.001.

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Синтезированы новые металлоорганосилоксаны (МОС) реакцией гидросилилирования ацетилацетонатов Ti(IV), Zr(IV), Hf(IV), V(IV) α,ω–дигидроолигодиметилсилоксаном. Продукты реакции изучены методами ДТГА, ИК-спектроскопии. Исследовано влияние полученных металлосилоксанов на термостабильность композитов на основе низкомолекулярного полидиметилсилоксанового каучука (СКТН), содержащего различные типы усиливающих наполнителей. Выявлено, что введение добавок МОС в количестве 7.10-3г/(кг смеси) увеличивает время начала гелеобразования компаунда на основе СКТН с 5 до 54 часов при 2500С. Помимо этого, у силиконовых вулканизатов повышается стойкость к процессам термоокислительной деструкции, после длительного температурного воздействия образцы резин сохраняют удовлетворительные физико-механические показатели. Кремнийорганические жидкости, модифицированные синтезированными термостабилизаторами, обладают высокими диэлектрическими характеристиками и термостабильностью в температурном интервале от 25 до 2700С. Синтезированные МОС растворимы в полиорганосилоксанах, что позволяет равномерно распределить малые количества модификатора в полимере. Наличие в макромолекулах термостабилизаторов металлов с высоким к.ч., позволяет активно инактивировать свободные радикалы в широком температурном диапазоне. Полученные наполненные силиконовые вулканизаты могут быть использованы в качестве термостойкой кабельной изоляции, высокотемпературных герметиков, а кремнийорганические жидкости, модифицированные МОС, как аналог минеральных масел для силовых трансформаторов. New organo-organosiloxanes (MOS) were synthesized by hydrosilylation of acetylacetonates Ti(IV), Zr(IV), Hf(IV), V(IV) α,ω–dihydrooligodimethylsiloxane. The reaction products were studied by DTGA and IR-spectroscopy. The effect of the obtained metallosiloxanes on the thermal stability of composites based on low molecular weight polydimethylsiloxane rubber containing various types of reinforcing fillers is investigated. It was revealed that the introduction of MOS additives in the amount of 7.10-3g / (kg of mixture) increases the time of the beginning of gelation of the compound based on polydimethylsiloxane rubber from 5 to 54 hours at 2500C. In addition, silicone vulcanizates have increased resistance to the processes of thermal oxidative degradation, after prolonged temperature exposure, rubber samples retain satisfactory physical and mechanical properties. Organosilicon liquids modified with synthesized thermostabilizers have high dielectric characteristics and thermal stability in the temperature range from 25 to 2700C. The synthesized MOS are soluble in polyorganosiloxanes, which makes it possible to evenly distribute small amounts of the modifier in the polymer. The presence of metal thermostabilizers in macromolecules with a high coordination stability makes it possible to actively inactivate free radicals in a wide temperature range. The resulting filled silicone vulcanizates can be used as heat-resistant cable insulation, high-temperature sealants, and organosilicon liquids modified by MOS as an analogue of mineral oils for power transformers.

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Zhao, Bingxue, and Qingjun Huang. "Research Progress on Peony under High Temperature Stress Caused by Climate Warming." E3S Web of Conferences 252 (2021): 03056. http://dx.doi.org/10.1051/e3sconf/202125203056.

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Global warming and worsening environmental problems have worsened the heat resistance of peony and difficult maintenance and management. The high temperature stress caused by the environment has become an important environmental factor for the growth and development of peony. The article summarizes the morphology, yield, physiological and biochemical indicators and research status of peony under high temperature stress; summarizes the research status of peony heat tolerance evaluation index screening, germplasm heat tolerance evaluation and heat-resistant peony breeding, in order to promote tolerance Selection and breeding process of hot peony germplasm resources. At present, related researches on peony mainly focus on pharmacological effects and germplasm resources. The physiological mechanism of high temperature and breeding of heat-resistant varieties of peony are relatively lagging behind. In-depth study of the physiological mechanism of high temperature in peony combined with multi-omics will help to adopt technical measures to improve the heat tolerance of high plants and reduce heat damage, so as to speed up the selection and breeding of heat-resistant peony germplasm, and meet the survival and medicine of peony in harsh environments. Use and other needs.

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Koyama, Tohru, Katuo Sugawara, Chikasi Kanno, Syouichi Maruyama, and Yoshikiyo Kashiwamura. "High-performance heat resistant insulation materials for coils." High Performance Polymers 7, no. 3 (June 1995): 325–36. http://dx.doi.org/10.1088/0954-0083/7/3/009.

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A new impregnating epoxide resin has been developed by optimizing cross-linking densities. The resin satisfies the thermal index of 210C: this is the first time an epoxide system without a heterocyclic ring has done so. Thermal class 220C insulating systems of traction motor coils are developed by interaction of the impregnating epoxide resin and epoxide binding resin in a new insulating tape. The newly developed epoxide impregnating resin has low viscosity and very good workability. Therefore, electrically insulated coils of various classes of heat resistance, such as class C (> 180C), class H (180 C) and class F (155C), can be prepared by using only a single kind of impregnating resin, by selecting the insulating tape and hardening conditions. It is unnecessary to keep various kinds of impregnating resin corresponding to the different beat resistant grades and it is possible to decrease drastically the amount of waste generated by using several different impregnating resins.

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Ivanov, D. I., A. A. Kozhukhov, and L. F. Urazova. "High-temperature corrosion of heat-resistant chromonickel steel." Steel in Translation 46, no. 3 (March 2016): 192–95. http://dx.doi.org/10.3103/s0967091216030049.

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Takahashi, Akio. "High Heat Resistant Polymers for SiC Power Module." Seikei-Kakou 26, no. 12 (November 20, 2014): 550–52. http://dx.doi.org/10.4325/seikeikakou.26.550.

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22

Heo, N. H., J. H. Shin, J. M. Oh, and C. Y. Kim. "Intergranular fracture in high chromium heat-resistant steel." Metals and Materials 5, no. 6 (November 1999): 579–82. http://dx.doi.org/10.1007/bf03026308.

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Uda, Nobuhide, Kousei Ono, and Tadashi Nagayasu. "OS14-2-4 Mode-I Interlaminar Fracture Behavior of Heat-Resistant Composite Materials at High Temperature." Abstracts of ATEM : International Conference on Advanced Technology in Experimental Mechanics : Asian Conference on Experimental Mechanics 2007.6 (2007): _OS14–2–4——_OS14–2–4—. http://dx.doi.org/10.1299/jsmeatem.2007.6._os14-2-4-.

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24

Kolozsváriné Nagy, Judit, Ildikó Schwarczinger, Lóránt Király, Renáta Bacsó, Attila L. Ádám, and András Künstler. "Near-Isogenic Barley Lines Show Enhanced Susceptibility to Powdery Mildew Infection Following High-Temperature Stress." Plants 11, no. 7 (March 28, 2022): 903. http://dx.doi.org/10.3390/plants11070903.

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Barley cultivation is adversely affected by high-temperature stress, which may modulate plant defense responses to pathogens such as barley powdery mildew (Blumeria graminis f. sp. hordei, Bgh). Earlier research focused mainly on the influence of short-term heat stress (heat shock) of barley on Bgh infection. In this study, our aim was to investigate the effects of both short- and long-term heat stress (35 °C from 30 s to 5 days) on Bgh infection in the barley cultivar Ingrid and its near-isogenic lines containing different powdery mildew resistance genes (Mla12, Mlg, and mlo5) by analyzing symptom severity and Bgh biomass with RT-qPCR. The expression of selected barley defense genes (BAX inhibitor-1, Pathogenesis- related protein-1b, Respiratory burst oxidase homologue F2, and Heat shock protein 90-1) was also monitored in plants previously exposed to heat stress followed by inoculation with Bgh. We demonstrated that pre-exposure to short- and long-term heat stress negatively affects the resistance of all resistant lines manifested by the appearance of powdery mildew symptoms and increased Bgh biomass. Furthermore, prolonged heat stress (48 and 120 h) enhanced both Bgh symptoms and biomass in susceptible wild-type Ingrid. Heat stress suppressed and delayed early defense gene activation in resistant lines, which is a possible reason why resistant barley became partially susceptible to Bgh.

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Aliev, Az A., V. N. Zimin, V. A. Tovstonog, and V. I. Tomak. "A Wedge witha Heat-Resistant Lining in a High-Speed Airflow: Comparative Estimate of the Thermal State." Herald of the Bauman Moscow State Technical University. Series Mechanical Engineering, no. 1 (140) (March 2022): 4–23. http://dx.doi.org/10.18698/0236-3941-2022-1-4-23.

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The efficiency and maximum height, speed and duration characteristics of the flight path of high-speed atmospheric aircraft are largely determined by the temperature regime of the most heat-stressed structural elements, suchas the edges of airframe airfoils. Their active thermal protection systems contribute to solving a number of complex scientific and technical problems, the most promising and simple solution being heat-resistant inorganic materials of the oxide class. However, their use for the structural design of the edge as a monolithic structural element is difficult both in terms of technology and strength characteristics, especially in the heat shock mode. In this regard, a promising solution is an edge in the form of a core made of heat-resistant and heat-conducting materials with a high-temperature oxide ceramic lining, which protects from the environmental oxidative effects and provides the permissible temperature regime of the core due to thermal resistance determined by the thickness of the lining. The study examines the temperature conditions of the wedge-shaped edge with a heat-conducting core and a heat-resistant ceramic lining. When choosing materials for the core and lining, it is important to preliminary calculate and estimate the parameters of the edge performance, taking into account the data on the thermophysical and physicomechanical properties of the materials. The study comparatively analyzes the thermal state of a prefabricated wedge with a heat-conducting core made of hafnium boride, which is an advanced heat-resistant material, and molybdenum and nickel, which are more technological and cheap metal materials, with a lining of oxide heat-resistant ceramics

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Lee, Hee Woong, S. I. Kwun, and Woo Sang Jung. "High Temperature Fatigue Behavior of 23Cr26Ni Heat Resistant Steel." Key Engineering Materials 452-453 (November 2010): 433–36. http://dx.doi.org/10.4028/www.scientific.net/kem.452-453.433.

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The influence of the cooling condition after solution treatment on the high temperature fatigue resistance of 23Cr-26Ni heat resistant steel was investigated. Two different cooling conditions were applied to the steel after solution treatment at 1230oC for 3 hours. One specimen was water quenched immediately after the solution treatment. The other one was furnace cooled at a rate of 0.5oC/min down to 750oC after the solution treatment. Then, both specimens were aged at 750oC for 5 hours. The low cycle fatigue (LCF) test was conducted to investigate the influence of high temperature on the LCF behaviors of the heat-resistant 23Cr26Ni alloy. Under two different heat treatment conditions, the LCF test was performed at total strain amplitudes ranging from ±0.4~0.9% at room temperature (RT) and 600°C. During the test, initial cyclic hardening occurred at both experimental temperatures. This phenomenon was attributed to the increase in the dislocation density due to cyclic deformation, which resulted in the interaction between the newly created dislocations and precipitates. Cyclic softening was observed in the later stages of the LCF test at RT. The formation of precipitates and increase in the dislocation density were observed using TEM. Also, the XRD and EDS techniques were used to verify the type and composition of the precipitates.

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Han, Yu, Bao An Chen, Zhi Xiang Zhu, Dong Yu Liu, and Yan Qiu Xia. "Effects of Zr on Microstructure and Conductivity of Er Containing Heat-Resistant Aluminum Alloy Used for Wires." Materials Science Forum 852 (April 2016): 205–10. http://dx.doi.org/10.4028/www.scientific.net/msf.852.205.

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It has particular heat-resistant property and conductivity of high-conductivity heat-resistant Aluminium alloys, which would be wildly applied in transmission and transformation flied. Al-Er-Zr alloys containing different content of Zr were prepared. The effect of Zr on microstructure of heat-resistance Aluminum alloy were studied by using of STEM, and thermodynamic behavior of Zr in Aluminium alloy was analyzed based on the theory of alloy phase formation. The results showed that the effect of Zr content on the grain size of heat-resistant aluminum alloy was remarkable, and the conductivity of heat-resistance Aluminum alloy was influenced.

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Egorenko, Marina, and Viktor Efremov. "OPTICAL SYSTEM FOR HIGH-TEMPERATURE ENDOSCOPE." Interexpo GEO-Siberia 8 (2019): 220–25. http://dx.doi.org/10.33764/2618-981x-2019-8-220-225.

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The principal possibility of the optical scheme calculation for a high-temperature endoscope made of heat-resistant optical crystals is considered. A small number of heat-resistant optical crystals and the difference in their optical and mechanical properties limit the ability to create achromatic pairs in the development of the endoscope.

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Li, Ya, Ji-Huan He, Qi-Long Sun, and Ping Wanga. "High temperature resistant nanofiber by bubbfil-spinning." Thermal Science 19, no. 4 (2015): 1461–62. http://dx.doi.org/10.2298/tsci1504461l.

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Heat-resisting nanofibers have many potential applications in various industries, and the bubbfil spinning is the best candidate for mass-production of such materials. Polyether sulfone/zirconia solution with a bi-solvent system is used in the experiment. Experimental result reveals that polyether sulfone/zirconia nanofibers have higher resistance to high temperature than pure polyether sulfone fibers, and can be used as high-temperature-resistant filtration materials.

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Li, Hong Bo, Hai Tao Li, Chun Jie Li, and Li Jie Qu. "The Effect of Cr Content on the Microstructure and Performance of Heat Resistant Nodular Cast Iron." Advanced Materials Research 430-432 (January 2012): 273–76. http://dx.doi.org/10.4028/www.scientific.net/amr.430-432.273.

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By way of alloying, a sort of low-chromium heat-resistant ductile iron material was developed. Through the observation of microstructure, testing of mechanical properties and process performance, heat-resistant test, the microstructure and properties of heat resistant ductile iron of low chromium was studied. The results show that microstructure of the developed heat-resistant ductile iron is spherical graphite distributed regularly on matrix of pearlite and a small amount of ferrite; mechanical properties, processing performance and high-temperature heat resistance of samples of different chrome composition are preferable, but 1.6% of chromium component possess the best performance.

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Noda, Toshiharu, Michio Okabe, and Susumu Isobe. "Corrosion and Heat Resistant Materials. Development of High Performance Heat Resistant Near-Alpha Titanium Alloy Compressor Disk." DENKI-SEIKO[ELECTRIC FURNACE STEEL] 67, no. 2 (1996): 103–7. http://dx.doi.org/10.4262/denkiseiko.67.103.

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Batako, Andre, Anatoliy Matveevich Adaskin, Victor Nikolaevich Butrim, Alexey Anatolevich Vereschaka, and Anatoliy Stepanovich Vereschaka. "Influence of Carbide Substrate Properties on Wear Resistance of Tool with Multilayer Coating in Machining of Chromium-Based Heat-Resistant Alloy." Materials Science Forum 876 (October 2016): 59–68. http://dx.doi.org/10.4028/www.scientific.net/msf.876.59.

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Thispaper presents the results of the studies of the combined influence of properties of carbide substrate and composite coatings on tool wear resistance in machining of chromium-based heat-resistant alloys. It was established that the efficiency of carbide tools with coatings is determined by a combination of the properties of the carbide substrate and the coating itself. For carbides with relatively low strength and crack resistance, the efficiency of coatings appeared to be unsatisfactory because of brittle fracture of the substrate and thus intensive failure of coating. High heat resistance of cobalt-rhenium alloy is not realized during deposition of coating because of blocking of the most important property of heat-resistant Co/Re binder, i.e. the ability to hold carbide grains under significant deterioration of carbide matrix even at a high temperature in the cutting zone.The maximum efficiency of the coating in machining of chromium-based heat-resistant alloy is provided withcarbide tools made with a balanced ratio of hardness, heat resistance and strength.

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Semenova, S. N., and A. M. Chaykun. "HIGHLY HEAT-RESISTANT SILICONE RUBBER COMPOSITIONS (review)." Proceedings of VIAM, no. 11 (2020): 31–37. http://dx.doi.org/10.18577/2307-6046-2020-0-11-31-37.

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A review of the scientific technical literature in the field of modern research on silicone rubber compositions with high temperature resistance, including those with fire-resistant properties, is presented. The polymer bases and heat-stabilizing and flame-retardant additives used in the developments, as well as methods for preparing rubber mixes and rubbers are shown. Features of compounding materials with a combination of heat resistance and fire-resistance are noted. The relevance of research for the needs of aviation equipment is shown.

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Gordon, C. L. André, and M. H. Ahmad. "Thermal susceptibility of Streptococcus faecium strains isolated from frankfurters." Canadian Journal of Microbiology 37, no. 8 (August 1, 1991): 609–12. http://dx.doi.org/10.1139/m91-103.

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The heat resistance of nine strains of Streptococcus faecium isolated from frankfurters was determined at 63 and 68 °C in brain heart infusion broth. Exponential-phase cultures (approximately 107 colonies/mL) were used as inoculants. The heat resistance of S. faecium DP2181, a moderately resistant isolate, was further examined in broth (55, 63, and 68 °C) and frankfurter emulsion (63 and 68 °C). The decimal reduction times (D values) were determined by regression. In broth, both time–temperature combinations resulted in a 3–4 log decline in bacterial numbers for the nine S. faecium strains tested. For S. faecium DP2181, the survivor curves deviated from the logarithmic order of death at all three heating temperatures. An initial slow period of death was evident at 55 °C and a resistant tail of organisms was observed at 55, 63, and 68 °C. The D55D63, and, D68 values for the logarithmic portion of the corresponding survivor curves were 105.6, 9.36, and 3.34 min, respectively. The survival of DP2181 was enhanced by the frankfurter emulsion. The results indicate that populations of S. faecium existed that were very heat resistant and could survive normal frankfurter processing if initially present in high numbers. Key words: heat resistance, enterococci, D value, resistant tail.

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Vereschaka, A. A., A. S. Vereschaka, and A. I. Anikeev. "Carbide Tools with Nano-Dispersed Coating for High-Performance Cutting of Hard-to-Cut Materials." Advanced Materials Research 871 (December 2013): 164–70. http://dx.doi.org/10.4028/www.scientific.net/amr.871.164.

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The problem of increasing performance of carbide too lin machining hard-to-machine materials has been studied. Composite material was developed comprising carbide with heat-resistant bond Co-Re, significantly increasing resistance of carbide to thermoplastic deformation, and nanodispersed multilayer composite coating, significantly reducing thermomechanical impact on cutting part of tool.Studies to find the performance of tool made of developed composite material in turning hardened steel40H and heat-resistant nickel alloy HN77TYUR have shown its superiority compared to commercial carbides with coatings of modern generation.Studies have found out practicability of using VRK-13 cobalt-rhenium carbides with reduced content of expensive rhenium from 9% (weight) Re to 6% (weight), and it is highly competitive by heat resistance with VRK-15 carbide and is significantly superior to it by its strength.Results of cutting properties research forultra-dispersed Re-added WC-Co-carbides with Ti-TiN-TiCrAlNnano-dispersed multilayer composite coating are presented at longitudinal turning of constructional steels and hard-to-machine alloys. It is shown that the combination of ultra-dispersedheat-resistant WC-(Co,Re)-carbides and wear-resistant Ti-TiN-TiCrAlN coatings increase cutting properties of tool in some times.

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Tukhareli, V. D., O. Y. Pushkarskaya, and A. V. Tukhareli. "Methodological Approaches in Assessing the Possibility of Using Waste Electrocorundum Materials in Concrete Compositions." Solid State Phenomena 284 (October 2018): 1030–35. http://dx.doi.org/10.4028/www.scientific.net/ssp.284.1030.

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Heat-resistant concretes have been successfully used in many heat units and building structures. Making concrete heat-resistant is possible through the development of a heat-resistant phosphate matrix, aluminophosphate binder. The compositions of high-refractory concretes on aluminophosphate binder with electrocorundum and chrome-aluminous slag have relatively high strength up to 70 MPa after heat treatment. Wastes generated as a result of technological activities of enterprises have several technical and economic advantages as industrial raw materials. After passing the production possibility frontier, the material not only has not lost its properties, but became more prepared with the position of the grain composition and growth of specific surface area, heat treatment for use in the technology of concrete and refractory concrete, in particular, as heat-resistant fillers. The methodological approach in the study of defective ceramic-bond abrasive wheels has been proposed herein. The chemical, grain and mineralogical analyses of the material after mechanical grinding allowed us to define it as an aggregate for concrete in order to give it heat-resistant properties. The obtained concrete composition has a tensile strength 2.5 times higher than conventional cement composition of concrete and thermal resistance (water, 800°C) of the composition with heat-resistant filler has increased in 5 times.

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Aertsen, Abram, Kristof Vanoirbeek, Philipp De Spiegeleer, Jan Sermon, Kristel Hauben, Anne Farewell, Thomas Nyström, and Chris W. Michiels. "Heat Shock Protein-Mediated Resistance to High Hydrostatic Pressure in Escherichia coli." Applied and Environmental Microbiology 70, no. 5 (May 2004): 2660–66. http://dx.doi.org/10.1128/aem.70.5.2660-2666.2004.

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ABSTRACT A random library of Escherichia coli MG1655 genomic fragments fused to a promoterless green fluorescent protein (GFP) gene was constructed and screened by differential fluorescence induction for promoters that are induced after exposure to a sublethal high hydrostatic pressure stress. This screening yielded three promoters of genes belonging to the heat shock regulon (dnaK, lon, clpPX), suggesting a role for heat shock proteins in protection against, and/or repair of, damage caused by high pressure. Several further observations provide additional support for this hypothesis: (i) the expression of rpoH, encoding the heat shock-specific sigma factor σ32, was also induced by high pressure; (ii) heat shock rendered E. coli significantly more resistant to subsequent high-pressure inactivation, and this heat shock-induced pressure resistance followed the same time course as the induction of heat shock genes; (iii) basal expression levels of GFP from heat shock promoters, and expression of several heat shock proteins as determined by two-dimensional sodium dodecyl sulfate-polyacrylamide gel electrophoresis of proteins extracted from pulse-labeled cells, was increased in three previously isolated pressure-resistant mutants of E. coli compared to wild-type levels.

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Mazalov, P. B., D. I. Suhov, E. A. Sulyanova, and I. S. Mazalov. "HEAT-RESISTANT COBALT-BASED ALLOYS." Aviation Materials and Technologies, no. 3 (2021): 3–10. http://dx.doi.org/10.18577/2713-0193-2021-0-3-3-10.

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Cobalt-based alloys are widely used for manufacturing of various components of gas turbine engines and gas turbines such as vanes and combustion chambers both in wrought state and as cast parts. They have been designed for improving the heat resistance due to solid solution and carbide-strengthening mechanisms. In order to obtain satisfactory oxidation resistance and hot corrosion resistance cobalt-based alloys are doped with sufficient amount of chromium (above 15 % wt.). Recently additive manufacturing has started to use cobalt-based alloys. The paper considers the features of the structure of high-temperature cobalt-based alloys and their application in various branches of industry.

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Al-Meshari, Abdulaziz, and John Little. "High temperature oxidation of centrifugally cast heat-resistant alloys." Materials at High Temperatures 26, no. 3 (September 2009): 233–39. http://dx.doi.org/10.3184/096034009x472222.

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Mukhin, Nikolay, Valentin Afanasjev, Irina Sokolova, Dmitry Chigirev, Rene Kastro, Lyudmila Rudaja, Galina Lebedeva, Aleksandr Oseev, and Andrey Tumarkin. "Heat-Resistant Ferroelectric-Polymer Nanocomposite with High Dielectric Constant." Materials 11, no. 8 (August 15, 2018): 1439. http://dx.doi.org/10.3390/ma11081439.

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The high dielectric constant ferroelectric-polymer nanocomposite was developed for producing the heat-resistant and chemical stable planar layers. According to the composite coatings formation conditions, the following value ranges of dielectric constant and loss factor were received: 30–400 for dielectric constant and 0.04–0.1 for loss tangent, accordingly. Unlike of composite components, the obtained composite material is characterized by thermo-stability of electrical parameters up to 250 °C. The dielectric frequency spectra of the composite exhibit two clearly visible peaks in contrast to the spectra of the polymer and ferroelectric ceramics. The developed composite material can be used as a built-in film capacitors material in microelectronic devices.

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Pan, J. P., S. H. Tu, X. W. Zhu, B. Hu, and L. J. Tan. "High-temperature creep behaviour of 15CrMoG heat-resistant steel." IOP Conference Series: Materials Science and Engineering 504 (April 26, 2019): 012032. http://dx.doi.org/10.1088/1757-899x/504/1/012032.

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Matsuo, Masaru, and Chie Sawatari. "Development of high-modulus polyethylene with heat-resistant properties." Macromolecules 20, no. 8 (August 1987): 1745–47. http://dx.doi.org/10.1021/ma00174a004.

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Hsu, Wei-Lin, Hideyuki Murakami, Jien-Wei Yeh, An-Chou Yeh, and Kazuya Shimoda. "A Heat-Resistant NiCo0.6Fe0.2Cr1.5SiAlTi0.2Overlay Coating for High-Temperature Applications." Journal of The Electrochemical Society 163, no. 13 (2016): C752—C758. http://dx.doi.org/10.1149/2.0821613jes.

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Abd El-Gawad, Walaa M., and Nivin M. Ahmed. "High performance heat-resistant coatings based on natural ores." Pigment & Resin Technology 47, no. 4 (July 2, 2018): 330–37. http://dx.doi.org/10.1108/prt-05-2017-0051.

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Purpose The purpose of this paper is to prepare new economical thermal resistant coatings containing white sand (WS) and kaolin (K) fillers, which are cheap natural ores in Egypt and are sources for ceramic materials such as SiO2 and Al2O3. Design/methodology/approach This paper investigates the effect of heat at 500°C on the durability of mild steel samples coated with silicon coatings. The coated plates were exposed to elevated temperatures according to ASTM D 2485 to determine their stability. Thermal gravimetric analysis and scanning electron microscopy were used to investigate the thermal stability of the modified films. Findings It was revealed that the composite fillers can enhance the thermal stability of silicon coatings. Another advantage of using the prepared composite fillers is promoting the dryness of silicon resin without heat. Research limitations/implications Different natural ores were used as ceramic filler to enhance the thermal stability of silicon coatings. Originality/value New economical thermal-resistant coatings containing white sand and kaolin were prepared to replace the expensive thermal coatings; also, they can be used in industries other than coatings, e.g. paper, rubber and plastics composites.

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Kita, Yuichi, Kazuo Kishino, and Koichi Nakagawa. "High-qualityN-substituted maleimide for heat-resistant methacrylic resin." Journal of Applied Polymer Science 63, no. 8 (February 22, 1997): 1055–62. http://dx.doi.org/10.1002/(sici)1097-4628(19970222)63:8<1055::aid-app12>3.0.co;2-5.

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Huang, Fang. "The Influence of Additives on the Heat-Resistant High Voltage-Resistant Insulation Material." Advanced Materials Research 391-392 (December 2011): 336–39. http://dx.doi.org/10.4028/www.scientific.net/amr.391-392.336.

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Typically, the resin matrix, glass fibers and fillers in the molding composition of about 80%, and other components including the initiator and inhibitor, chemical thickeners, low shrink / low waviness additives, coloring agents, release agents, etc. Although a small proportion of them, but to improve performance, processes, and molding compounds, such as SMC / BMC's performance has played a very important role.

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Yu, Jing, Pengli Li, Song Tu, Ningxiao Feng, Liying Chang, and Qingliang Niu. "Identification of Heat-Resistant Varieties of Non-Headed Chinese Cabbage and Discovery of Heat-Resistant Physiological Mechanisms." Horticulturae 9, no. 6 (May 25, 2023): 619. http://dx.doi.org/10.3390/horticulturae9060619.

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Affected by global warming, continuous high temperature has a negative impact on plant growth and development and become a major constraint to crop production. Germplasm resource identification has become a research hotspot in many fields, and it is also necessary to establish effective identification methods. In this study, twenty Brassica rapa varieties were selected to investigate the physiological and biochemical characteristics under heat stress, explore the relationship between physiological response and the heat resistance mechanism, and select some typical heat-resistant and heat-sensitive varieties. The effects of photosynthetic electron transfer and antioxidant pathway on the heat resistance of Brassica rapa were identified. These findings will provide important guidance for the physiological regulation and identification method of heat stress in plants.

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Wang, Zheng Shun, and Zhao Hui Zhen. "Heat Insulation Silicone Coating ANSYS Simulation Analysis." Advanced Materials Research 680 (April 2013): 402–5. http://dx.doi.org/10.4028/www.scientific.net/amr.680.402.

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By use of ANSYS software, Without coated high temperature resistant coating and coated with high temperature resistant paint two model to simulate heat transfer analysis, so as to explore the preparation of the high temperature resistant coating insulation heat preservation effect.

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Wang, Bijie, Ke Chen, Tianhao Li, Xun Sun, Ming Liu, Lingwei Yang, Xiao (Matthew) Hu, et al. "High-Temperature Resistant Polyborosilazanes with Tailored Structures." Polymers 13, no. 3 (February 1, 2021): 467. http://dx.doi.org/10.3390/polym13030467.

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Boron-containing organosilicon polymers are widely used under harsh environments as preceramic polymers for advanced ceramics fabrication. However, harmful chemicals released during synthesis and the complex synthesis routes have limited their applications. To solve the problems, a two-component route was adopted to synthesize cross-linked boron-containing silicone polymer (CPBCS) via a solventless process. The boron content and CPBCSs’ polymeric structures could be readily tuned through controlling the ratio of multifunctional boron hybrid silazane monomers (BSZ12) and poly[imino(methylsilylene)]. The CPBCSs showed high thermal stability and good mechanical properties. The CPBCS with Si-H/C=C ratio of 10:1 showed 75 wt% char yields at 1000 °C in argon, and the heat release capacity (HRC) and total heat release (THR) are determined to be 37.9 J/g K and 6.2 KJ/g, demonstrating high thermal stability and flame retardancy. The reduced modulus and hardness of CPBCS are 0.30 GPa and 2.32 GPa, respectively. The novel polysilazanes can be potentially used under harsh environments, such as high temperatures or fire hazards.

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Young Moo Lee and Roger L. Barker. "Thermal Protective Performance of Heat-Resistant Fabrics in Various High Intensity Heat Exposures." Textile Research Journal 57, no. 3 (March 1987): 123–32. http://dx.doi.org/10.1177/004051758705700301.

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Journal articles on the topic 'HIGH HEAT RESISTANT'

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