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Zeitschriftenartikel zum Thema „Ultra High Temperature Materials“

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Veröffentlicht am 25. Mai 2024

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1

MASUMOTO, Hiroki. „The Activities of Japan Ultra-high Temperature Materials Research Center and Japan Ultra-high Temperature Materials Research Institute.“ RESOURCES PROCESSING 46, Nr. 4 (1999): 219–24. http://dx.doi.org/10.4144/rpsj1986.46.219.

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2

Zhang, Guo Jun, Wen Wen Wu, Yan Mei Kan und Pei Ling Wang. „Ultra-High Temperature Ceramics (UHTCs) via Reactive Sintering“. Key Engineering Materials 336-338 (April 2007): 1159–63. http://dx.doi.org/10.4028/www.scientific.net/kem.336-338.1159.

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Current high temperature ceramics, such as ZrO2, Si3N4 and SiC, cannot be used at temperatures over 1600°C due to their low melting temperature or dissociation temperature. For ultrahigh temperature applications over 1800°C, materials with high melting points, high phase composition stability, high thermal conductivity, good thermal shock and oxidation resistance are needed. The transition metal diborides, mainly include ZrB2 and HfB2, have melting temperatures of above 3000°C, and can basically meet the above demands. However, the oxidation resistance of diboride monolithic ceramics at ultra-high temperatures need to be improved for the applications in thermal protection systems for future aerospace vehicles and jet engines. On the other hand, processing science for making high performance UHTCs is another hot topic in the UHTC field. Densification of UHTCs at mild temperatures through reactive sintering is an attracting way due to the chemically stable phase composition and microstructure as well as clean grain boundaries in the obtained materials. Moreover, the stability studies of the materials in phase composition and microstructures at ultra high application temperatures is also critical for materials manufactured at relatively low temperature. Furthermore, the oxidation resistance in simulated reentry environments instead of in static or flowing air of ambient pressure should be evaluated. Here we will report the concept, advantages and some recent progress on the reactive sintering of diboride–based composites at mild temperatures.

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Kurokawa, Kazuya. „Metal Disilicides as Ultra-High Temperature Oxidation-Resistant and High-Temperature Corrosion-Resistant Materials“. Materia Japan 52, Nr. 9 (2013): 428–33. http://dx.doi.org/10.2320/materia.52.428.

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4

Fang, Daining, Weiguo Li, Tianbao Cheng, Zhaoliang Qu, Yanfei Chen, Ruzhuan Wang und Shigang Ai. „Review on mechanics of ultra-high-temperature materials“. Acta Mechanica Sinica 37, Nr. 9 (September 2021): 1347–70. http://dx.doi.org/10.1007/s10409-021-01146-3.

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5

Tanaka, Ryohei. „The International Symposium on Ultra-high Temperature Materials“. Materials at High Temperatures 9, Nr. 4 (November 1991): 237–38. http://dx.doi.org/10.1080/09603409.1991.11689665.

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6

Fahrenholtz, William G., und Greg E. Hilmas. „Ultra-high temperature ceramics: Materials for extreme environments“. Scripta Materialia 129 (März 2017): 94–99. http://dx.doi.org/10.1016/j.scriptamat.2016.10.018.

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7

WANG, RUZHUAN, WEIGUO LI und DAINING FANG. „A THERMO-DAMAGE STRENGTH MODEL FOR THE SiC-DEPLETED LAYER OF ULTRA-HIGH-TEMPERATURE CERAMICS ON HIGH TEMPERATURE OXIDATION“. International Journal of Applied Mechanics 05, Nr. 03 (September 2013): 1350026. http://dx.doi.org/10.1142/s1758825113500269.

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At high temperatures above 1650°C, the SiC -depleted layer of ultra-high-temperature ceramics which has high porosity appears during the oxidation process. In this present paper, based on the studies of the oxidative mechanisms and the fracture mechanisms of ultra-high-temperature ceramics under normal and high temperatures, a thermo-damage strength model for the SiC -depleted layer on high temperature oxidation was proposed. Using the model, the phase transformation, microstructure development and fracture performance in the SiC -depleted layer on high temperature oxidation were studied in detail. The study showed that the porosity is mainly related to the oxidation of SiC . And while the SiC is substantially completely oxidized, only a very small part of matrix is oxidized. The fracture strength of the SiC -depleted layer degrades seriously during the high temperature oxidation process. And the bigger the initial volume fraction of SiC , the lower the fracture strength of the SiC -depleted layer is. This layer may become the origin of failure of material, thus the further researches should be undertaken to improve the oxidation behavior for the ultra-high-temperature ceramics in a wider temperature range.

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Xu, Lin, Jia Cheng, Xingchao Li, Yin Zhang, Zhen Fan, Yongzhong Song und Zhihai Feng. „Preparation of carbon/carbon‐ultra high temperature ceramics composites with ultra high temperature ceramics coating“. Journal of the American Ceramic Society 101, Nr. 9 (03.04.2018): 3830–36. http://dx.doi.org/10.1111/jace.15565.

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9

Fuller, Joan, und Michael D. Sacks. „Guest Editorial: Ultra-high temperature ceramics“. Journal of Materials Science 39, Nr. 19 (Oktober 2004): 5885. http://dx.doi.org/10.1023/b:jmsc.0000041685.85043.34.

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10

TANAKA, Ryohei. „Heat Resisiting Steels, Superalloys, and Ultra-high Temperature Materials“. Tetsu-to-Hagane 79, Nr. 4 (1993): N282—N289. http://dx.doi.org/10.2355/tetsutohagane1955.79.4_n282.

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11

Simonenko, E. P., D. V. Sevast’yanov, N. P. Simonenko, V. G. Sevast’yanov und N. T. Kuznetsov. „Promising ultra-high-temperature ceramic materials for aerospace applications“. Russian Journal of Inorganic Chemistry 58, Nr. 14 (Dezember 2013): 1669–93. http://dx.doi.org/10.1134/s0036023613140039.

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12

Savino, Raffaele, Mario De Stefano Fumo, Diego Paterna und Di Maso Andrea. „Arc-Jet Testing of Ultra-High-Temperature-Ceramics“. Open Aerospace Engineering Journal 3, Nr. 1 (20.02.2010): 20–31. http://dx.doi.org/10.2174/1874146001003010020.

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The article deals with arc-jet experiments on different Ultra High Temperature Ceramics models in high enthalpy hypersonic non equilibrium flow. Typical geometries for nose tip or wing leading edges of interest for hypersonic vehicles, as rounded wedge, hemisphere and cone are considered. Temperature measurements have been performed using pyrometers, an IR thermocamera and thermocouples. Spectral emissivity has been evaluated by suitable experimental techniques. The details of the experimental set-up, the tests procedure and the measurements are discussed in the text. The UHTC materials have been tested for several minutes to temperatures up to 2050 K showing a good resistance in extreme conditions. Fundamental differences between the various model shapes have been analysed and discussed. Numerical-experimental correlations have been carried out by a CFD code, resulting in good agreement with proper modelling. The numerical rebuilding also allowed to evaluate the catalytic efficiency and the emissivity of the materials at different temperature.

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Yang, Jia Qing, Shu He Lu, Xiao Hu Hua, Xiao Gang Wang, Li Bin Niu, Zi Min Fan und Jia Bo Wang. „The Study of Carbon Materials Prepared by Zhaotong Anthracite under Ultra-High Temperature“. Materials Science Forum 809-810 (Dezember 2014): 807–14. http://dx.doi.org/10.4028/www.scientific.net/msf.809-810.807.

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In this paper, reporting a new way to directly prepare quality of carbon materials such as artificial graphite, like-graphitization carburant and senior carbonaceous reductant et al ,which is prepared from anthracite under ultra-high temperature without any other additional process and catalyst. The chemical composition of carbon materials was analysed ; the electrical resistivity was tested; the composition of phase and the graphitization degree was tested by XRD; the microstructure was characterized by SEM and the degree of crystallization and crystal defect was characterized by the Raman diffraction spectrum. At the same time, the graphitization method was discussed during ultra-high temperature. The results show that good carburant and carbonaceous reductant can be prepared by anthracite which was graphitization under ultra-high temperature ;The microstructure of carbon materials which was prepared by anthracite that was graphitization during ultra-high temperature is more ordered than that of raw anthracite, its graphitization degree also increase significantly; When the ultra-high graphitization temperature is above 2600 °C, carbon materials which is like to pure graphite have a small amount of structural defects and distortion; the high quality carbon materials prepared by graphitization method under ultra-high temperature ,it is a simple process with low cost and high added value, and its prospects of application is broad.

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Qin, Mingde, Joshua Gild, Chongze Hu, Haoren Wang, Md Shafkat Bin Hoque, Jeffrey L. Braun, Tyler J. Harrington, Patrick E. Hopkins, Kenneth S. Vecchio und Jian Luo. „Dual-phase high-entropy ultra-high temperature ceramics“. Journal of the European Ceramic Society 40, Nr. 15 (Dezember 2020): 5037–50. http://dx.doi.org/10.1016/j.jeurceramsoc.2020.05.040.

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15

Ni, Dewei, Yuan Cheng, Jiaping Zhang, Ji-Xuan Liu, Ji Zou, Bowen Chen, Haoyang Wu et al. „Advances in ultra-high temperature ceramics, composites, and coatings“. Journal of Advanced Ceramics 11, Nr. 1 (24.12.2021): 1–56. http://dx.doi.org/10.1007/s40145-021-0550-6.

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AbstractUltra-high temperature ceramics (UHTCs) are generally referred to the carbides, nitrides, and borides of the transition metals, with the Group IVB compounds (Zr & Hf) and TaC as the main focus. The UHTCs are endowed with ultra-high melting points, excellent mechanical properties, and ablation resistance at elevated temperatures. These unique combinations of properties make them promising materials for extremely environmental structural applications in rocket and hypersonic vehicles, particularly nozzles, leading edges, and engine components, etc. In addition to bulk UHTCs, UHTC coatings and fiber reinforced UHTC composites are extensively developed and applied to avoid the intrinsic brittleness and poor thermal shock resistance of bulk ceramics. Recently, highentropy UHTCs are developed rapidly and attract a lot of attention as an emerging direction for ultra-high temperature materials. This review presents the state of the art of processing approaches, microstructure design and properties of UHTCs from bulk materials to composites and coatings, as well as the future directions.

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16

Feng, Lun, William G. Fahrenholtz und Donald W. Brenner. „High-Entropy Ultra-High-Temperature Borides and Carbides: A New Class of Materials for Extreme Environments“. Annual Review of Materials Research 51, Nr. 1 (26.07.2021): 165–85. http://dx.doi.org/10.1146/annurev-matsci-080819-121217.

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Herein, we critically evaluate computational and experimental studies in the emerging field of high-entropy ultra-high-temperature ceramics. High-entropy ultra-high-temperature ceramics are candidates for use in extreme environments that include temperatures over 2,000°C, heat fluxes of hundreds of watts per square centimeter, or irradiation from neutrons with energies of several megaelectron volts. Computational studies have been used to predict the ability to synthesize stable high-entropy materials as well as the resulting properties but face challenges such as the number and complexity of unique bonding environments that are possible for these compositionally complex compounds. Experimental studies have synthesized and densified a large number of different high-entropy borides and carbides, but no systematic studies of composition-structure-property relationships have been completed. Overall, this emerging field presents a number of exciting research challenges and numerous opportunities for future studies.

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17

Shur, Michael. „(Invited) Ultrawide Bandgap Transistors for High Temperature and Radiation Hard Applications“. ECS Meeting Abstracts MA2022-02, Nr. 37 (09.10.2022): 1348. http://dx.doi.org/10.1149/ma2022-02371348mtgabs.

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Some of the best high-temperature commercial devices are now GaN field-effect transistors (FETs) on silicon substrates. However, these devices cannot meet requirements for space applications requiring high radiation hardness and for operations at temperatures as high as 600 oC. High temperature and radiation hard applications stimulated interest in developing transistors using ultrawideband gap materials including AlN, AlGaN with a high molecular fraction of aluminum, gallium oxide, diamond, boron nitride, and their heterojunctions. A wider bandgap and, therefore, larger energy required to produce an electron-hole pair and larger energy gap discontinuities in heterostructures formed by these materials make them both more tolerant to radiation and more capable of operating at higher temperatures. Insulated gate (Metal Insulator Heterostructure FET (MISHFET) structures with high K-materials implemented in the AlGaN materials system, the power FINFET configurations implemented in GaN and diamond, and gate edge and channel engineering approaches are key technologies for ultra-wide bandgap semiconductor applications. Using all AlGaN materials is now a proven approach to compete with GaN. Measured and predicted materials properties of BN and diamond promise an even better performance but the power device applications of these materials and their heterojunctions have not yet been sufficiently explored. I will review the material parameters of ultra-wideband gap semiconductors and specific device designs linking them to the expected radiation hardness and high-temperature performance and to improving the reliability and lifetime of ultra-wideband gap transistors.

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Golla, Brahma Raju, Amartya Mukhopadhyay, Bikramjit Basu und Sravan Kumar Thimmappa. „Review on ultra-high temperature boride ceramics“. Progress in Materials Science 111 (Juni 2020): 100651. http://dx.doi.org/10.1016/j.pmatsci.2020.100651.

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19

Savino, Raffaele. „Editorial: Ultra High Temperature Ceramics for Aerospace Applications“. Open Aerospace Engineering Journal 3, Nr. 1 (20.04.2010): 9. http://dx.doi.org/10.2174/1874146001003010009.

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Improved interest in ultra-high-temperature ceramics (UHTCs) is being animating the scientific community. This emerging attention is driven by the demand of developing re-usable hot structures as thermal protection systems of aerospace vehicles, able to re-enter in planetary atmospheres at relatively high speed (order of 8-11 Km/s). In contrast to traditional blunt capsules or Shuttle-like vehicles, characterised by poor gliding capabilities and complex thermal protection systems, the future use of UHTCs opens new horizons for the development of spaceplanes with slender fuselage noses and sharp wing leading edges. Advanced aerodynamic configurations reduce the vehicles drag, enhance the vehicles performances, due to a larger manoeuvrability resulting in larger down range, cross range and abort windows, and reduce electromagnetic interferences and communications black-out. Analysis has shown that materials with temperature capability approaching 2000°C and above will be required for these space vehicles, but the state of the art Reinforced Carbon-Carbon (RCC) material, currently used on the Space Shuttle, have maximum use temperatures of approximately 1650°C. The articles collected in this issue provide state-of-art scientific advancements on the subject with particular attention to the potential technological applications. The papers specifically deal with research studies on monolithic ceramic materials, composed primarily of Zirconium and Hafnium Diborides with different additives. The activities are carried out at materials level, with furnace or arc-jet testing, or include developments of UHTC-based hot structures at sub-component level. In the latter case, ultra-high temperature ceramic prototype structures have been developed and tested with embedded structural health monitoring systems. I want to thank all the article contributors for their manuscripts. I hope they will be useful for future basic and applied researches on the subject.

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J. Opila, Elizabeth, Jim Smith, Stanley R. Levine, Jonathan Lorincz und Marissa Reigel. „Oxidation of TaSi-Containing ZrB-SiC Ultra-High Temperature Materials“. Open Aerospace Engineering Journal 3, Nr. 1 (20.02.2010): 41–51. http://dx.doi.org/10.2174/1874146001003010041.

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Hot pressed coupons of composition ZrB -20 v% SiC -5 v% TaSi2 and ZrB2 -20 v% SiC -20 v% TaSi were oxidized in stagnant air at temperatures of 1627 and 1927°C for one, five and ten 10-minute cycles. The oxidation reactions were characterized by weight change kinetics, x-ray diffraction, and SEM/EDS. Detailed WDS/microprobe quantitative analyses of the oxidation products were conducted for the ZrB -20 v% SiC -20 v% TaSi sample oxidized for five 10-minute cycles at 1927°C. Oxidation kinetics and product formation were compared to ZrB2 -20 v% SiC with no TaSi2 additions. It was found that the 20 v% TaSi2 composition exhibited improved oxidation resistance relative to the material with no TaSi additions at 1627°C. However, for exposures at 1927°C less oxidation resistance and extensive liquid phase formation were observed compared to the material with no TaSi2 additions. Attempts to limit the liquid phase formation by reducing the TaSi2 content to 5 v% were unsuccessful. In addition, the enhanced oxidation resistance at 1627°C due to 20 v% TaSi2 additions was not achieved at the 5 v% addition level. The observed oxidation product evolution is discussed in terms of thermodynamics and phase equilibria for the TaSi-containing ZrB2-SiC material system. TaSi-additions to ZrB2-SiC at any level are not recommended for ultra-high temperature (>1900°C) applications due to excessive liquid phase formation.

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Sévin, Louise, Aurélie Julian-Jankowiak, Jean François Justin, Cécile Langlade, Pierre Bertrand und Nicolas Pelletier. „Structural Stability of Hafnia-Based Materials at Ultra-High Temperature“. Materials Science Forum 941 (Dezember 2018): 1972–77. http://dx.doi.org/10.4028/www.scientific.net/msf.941.1972.

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This study assesses the structural stability at ultra-high temperature of the following selected compositions: 6.5 and 14 mol. % of RE2O3 (RE = Dy, Y, Er, Yb, and Lu) doped HfO2. Under thermal cycling and thermal shock, the structural stability was evaluated at 2400°C with water vapor flux using a specific test bench with a 3 kW CO2 laser. The cubic phase stability, which is theoretically important in the broad temperature range from 25 to 2800°C, was determined by a quantitative analysis of the X-ray diffractograms. Fully and partially stabilized HfO2, obtained respectively with 14 mol. % and 6.5 mol. % of dopants, showed different behaviors to thermal damage. Thermal expansion was measured up to 1650°C to anticipate dimensional changes of these stabilized samples and to be able to design an optimized material solution fitting with future combustion chamber requirements. All of these results were then considered in order to exhibit a trend on the thermal stability at 2400°C of the ionic radius of the dopants and their optimal doping rates.

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Kim, Seong-Won, Jung-Min Chae, Sung-Min Lee, Yoon-Suk Oh, Hyung-Tae Kim und Sahn Nahm. „Fabrication of ZrB2-based Composites for Ultra-high Temperature Materials“. Journal of Korean Powder Metallurgy Institute 16, Nr. 6 (28.12.2009): 442–48. http://dx.doi.org/10.4150/kpmi.2009.16.6.442.

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23

Wuchina, Eric, Elizabeth Opila, Mark Opeka, Bill Fahrenholtz und Inna Talmy. „UHTCs: Ultra-High Temperature Ceramic Materials for Extreme Environment Applications“. Electrochemical Society Interface 16, Nr. 4 (01.12.2007): 30–36. http://dx.doi.org/10.1149/2.f04074if.

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24

Tanaka, Ryohei. „Research and development of ultra-high temperature materials in Japan“. Materials at High Temperatures 17, Nr. 4 (November 2000): 457–64. http://dx.doi.org/10.1179/mht.2000.060.

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25

Ionescu, Emanuel, Samuel Bernard, Romain Lucas, Peter Kroll, Sergey Ushakov, Alexandra Navrotsky und Ralf Riedel. „Polymer‐Derived Ultra‐High Temperature Ceramics (UHTCs) and Related Materials“. Advanced Engineering Materials 21, Nr. 8 (11.06.2019): 1900269. http://dx.doi.org/10.1002/adem.201900269.

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26

Tsakiropoulos, Panos. „On the Nb5Si3 Silicide in Metallic Ultra-High Temperature Materials“. Metals 13, Nr. 6 (26.05.2023): 1023. http://dx.doi.org/10.3390/met13061023.

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Refractory metal (RM) M5Si3 silicides are desirable intermetallics in metallic ultra-high temperature materials (UHTMs), owing to their creep properties and high Si content that benefits oxidation resistance. Of particular interest is the alloyed Nb5Si3 that forms in metallic UHTMs with Nb and Si addition. The choice of alloying elements and type of Nb5Si3 that is critical for achieving a balance of properties or meeting a property goal in a metallic UHTM is considered in this paper. Specifically, the different types of alloyed “normal” Nb5Si3 and Ti-rich Nb5Si3, namely “conventional”, “complex concentrated” (CC) or “high entropy” (HE) silicide, in metallic UHTMs with Nb and Si addition were studied. Advanced metallic UHTMs with additions of RMs, transition metals (TMs), Ge, Sn or Ge + Sn and with/without Al and with different Ti, Al, Cr, Si or Sn concentrations were investigated, considering that the motivation of this work was to support the design and development of metallic-UHTMs. The study of the alloyed silicides was based on the Nb/(Ti + Hf) ratio, which is key regarding creep, the parameters VEC and Δχ and relationships between them. The effect of alloying additions on the stability of “conventional”, CC or HE silicide was discussed. The creep and hardness of alloyed Nb5Si3 was considered. Relationships that link “conventional”, CC or HE bcc solid solution and Nb5Si3 in the alloy design methodology NICE (Niobium Intermetallic Composite Elaboration) were presented. For a given temperature and stress, the steady state creep rate of the alloyed silicide, in which TMs substituted Nb, and Al and B substituted Si, depended on its parameters VEC and Δχ and its Nb/(Ti + Hf) ratio, and increased with decreasing parameter and ratio value, compared with the unalloyed Nb5Si3. Types of alloyed Nb5Si3 with VEC and Δχ values closest to those of the unalloyed Nb5Si3 were identified in maps of alloyed Nb5Si3. Good agreement was shown between the calculated hardness and chemical composition of Nb5Si3 and experimental results.

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Zeng, Tao, Shi Yan, Dai-Ning Fang und Yu Gao. „Assessment of failure temperature of ultra-high temperature ceramic plates“. Frontiers of Materials Science in China 4, Nr. 3 (05.08.2010): 259–61. http://dx.doi.org/10.1007/s11706-010-0092-2.

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28

Aljabbri, Noor Alhuda Sami, Mohammed Noori Hussein und Ali Abdulmohsin Khamees. „Performance of Ultra High Strength Concrete Expose to High Rise Temperature“. Annales de Chimie - Science des Matériaux 45, Nr. 4 (31.08.2021): 351–59. http://dx.doi.org/10.18280/acsm.450411.

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Fire or high temperature is a serious issue to ultra-high-strength concrete (UHSC). Strength reduction of UHPCs may amount to as high as 80 percent after exposure to 800℃. A sum of four UHSC mixes was synthesized and evaluated in this study after getting exposed to extreme temperatures that reach 1000°C. Steel and polypropylene (PP) fibers were used in this experiment. A total of four mixes were made of UHSC without fibres as a control mix (UHSC-0), UHSC with 2% steel fibres (UHSC-S), UHSC with 2% PP fibres (UHSC-P) and UHSC with 1% steel fibres + 1% PP fibres (UHSC-SP). Workability, direct tensile strength, compressive strength, and splitting tensile strength were examined. Particularly, emphasis was devoted to explosive spalling since UHPCs are typically of compact structure and hence more prone to explosive spalling than other concretes. It was determined that the mixture UHSC-SP had high fire resistance. Following exposure to 1000℃, this mixture preserved a residual compressive strength of 36 MPa, splitting tensile strength of 1.62 MPa and direct tensile strength of 0.8 MPa. On the other hand, UHSC-P also had good fire resistance while UHSC-0 and UHSC-S experienced explosive spalling after heating above 200ᴼC. The incorporation of steel fibers in UHSC-S and UHSC-SP mixtures reveals higher tensile and compressive strength findings at different elevated temperatures as compared to UHSC-0 and UHSC-P. In addition, the result of direct tensile strength appears to be lower than splitting tensile strength at different raised temperatures.

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Edalati, Kaveh. „Superfunctional Materials by Ultra-Severe Plastic Deformation“. Materials 16, Nr. 2 (07.01.2023): 587. http://dx.doi.org/10.3390/ma16020587.

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Superfunctional materials are defined as materials with specific properties being superior to the functions of engineering materials. Numerous studies introduced severe plastic deformation (SPD) as an effective process to improve the functional and mechanical properties of various metallic and non-metallic materials. Moreover, the concept of ultra-SPD—introducing shear strains over 1000 to reduce the thickness of sheared phases to levels comparable to atomic distances—was recently utilized to synthesize novel superfunctional materials. In this article, the application of ultra-SPD for controlling atomic diffusion and phase transformation and synthesizing new materials with superfunctional properties is discussed. The main properties achieved by ultra-SPD include: (i) high-temperature thermal stability in new immiscible age-hardenable aluminum alloys; (ii) room-temperature superplasticity for the first time in magnesium and aluminum alloys; (iii) high strength and high plasticity in nanograined intermetallics; (iv) low elastic modulus and high hardness in biocompatible binary and high-entropy alloys; (v) superconductivity and high strength in the Nb-Ti alloys; (vi) room-temperature hydrogen storage for the first time in magnesium alloys; and (vii) superior photocatalytic hydrogen production, oxygen production, and carbon dioxide conversion on high-entropy oxides and oxynitrides as a new family of photocatalysts.

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Fuller, Joan, Yigal Blum und Jochen Marschall. „Topical Issue on Ultra-High-Temperature Ceramics“. Journal of the American Ceramic Society 91, Nr. 5 (Mai 2008): 1397. http://dx.doi.org/10.1111/j.1551-2916.2008.02481.x.

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Gu, Mingyu, Chunyan Wu, Xingyu Chen, Yu Wan, Yumeng Liu, Shan Zhou, Hongwei Cai, Bi Jia, Ruzhuan Wang und Weiguo Li. „Stress-Induced Microcracking and Fracture Characterization for Ultra-High-Temperature Ceramic Matrix Composites at High Temperatures“. Materials 15, Nr. 20 (11.10.2022): 7074. http://dx.doi.org/10.3390/ma15207074.

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In this paper, we estimated the temperature-dependent critical inclusion size for microcracking under residual stress and applied stress for particulate-reinforced ultra-high-temperature ceramic matrix composites. The critical flaw size and applied stress for the stable growth of radial cracks under different temperatures were also estimated. It was found that under a lower applied stress, the critical inclusion size was sensitive to the temperature. Under higher applied stresses, the sensitivity became smaller. For ceramic materials with pre-existing microcracks, the crack resistance could be improved by increasing the service stress when the service stress was low. As the temperature increased, the critical flaw size of the materials decreased; the applied stress first increased and then decreased. Finally, a temperature-dependent fracture strength model of composites with a pre-existing critical flaw was proposed. A good agreement was obtained between the model prediction and the experimental data. In this work, we show a method for the characterization of the effects of temperature on the fracture behavior of ceramic-based composites.

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Maki, Tadashi, Keizo Uematsu, Shigeyoshi Hara, Toshio Nishihara, Masakatsu Kochi und Rikio Yokota. „Materials design for high strength and ultra high thermal resistant. A. Metals B. Ceramics C. High-tenacity polymeric materials D. Ultra-high temperature polymers.“ Kobunshi 35, Nr. 5 (1986): 464–71. http://dx.doi.org/10.1295/kobunshi.35.464.

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33

Völkl, R., und B. Fischer. „Mechanical testing of ultra-high temperature alloys“. Experimental Mechanics 44, Nr. 2 (April 2004): 121–27. http://dx.doi.org/10.1007/bf02428171.

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34

Park, Chang Wook, Sung Won Yoon, Je Hyoung Cho und Yun Hae Kim. „Analysis of residual stress in welding parts of cryogenic materials for LNG storage tank“. Modern Physics Letters B 34, Nr. 07n09 (16.03.2020): 2040030. http://dx.doi.org/10.1142/s0217984920400308.

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Research in LNG fueled ships are actively underway in the world. Accordingly, various materials were widely used as materials for storage tanks for ultra-low temperatures, and high manganese steel for ultra-low temperature was recently developed. In this paper, the transient thermal and residual stress analysis of the welding of 9% nickel steel and high manganese steel are presented. 9% nickel steel tended to have higher transverse direction stress and longitudinal direction stress than high manganese steel.

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Nowak, Rafał, Grzegorz Bruzda und Wojciech Polkowski. „High temperature interaction between molten Ni50Al50 alloy and ZrB2 ultra-high temperature ceramics“. Materials Letters 290 (Mai 2021): 129447. http://dx.doi.org/10.1016/j.matlet.2021.129447.

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36

Chen, How-Ji, Yi-Lin Yu und Chao-Wei Tang. „Mechanical Properties of Ultra-High Performance Concrete before and after Exposure to High Temperatures“. Materials 13, Nr. 3 (07.02.2020): 770. http://dx.doi.org/10.3390/ma13030770.

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Compared with ordinary concrete, ultra-high performance concrete (UHPC) has excellent toughness and better impact resistance. Under high temperatures, the microstructure and mechanical properties of UHPC may seriously deteriorate. As such, we first explored the properties of UHPC with a designed 28-day compressive strength of 120 MPa or higher in the fresh mix phase, and measured its hardened mechanical properties at seven days. The test variables included: the type of cementing material and the mixing ratio (silica ash, ultra-fine silicon powder), the type of fiber (steel fiber, polypropylene fiber), and the fiber content (volume percentage). In addition to the UHPC of the experimental group, pure concrete was used as the control group in the experiment; no fiber or supplementary cementitious materials (silica ash, ultra-fine silicon powder) were added to enable comparison and discussion and analysis. Then, the UHPC-1 specimens of the experimental group were selected for further compressive, flexural, and splitting strength tests and SEM observations after exposure to different target temperatures in an electric furnace. The test results show that at room temperature, the 56-day compressive strength of the UHPC-1 mix was 155.8 MPa, which is higher than the >150 MPa general compressive strength requirement for ultra-high-performance concrete. The residual compressive strength, flexural strength, and splitting strength of the UHPC-1 specimen after exposure to 300, 400, and 500 °C did not decrease significantly, and even increased due to the drying effect of heating. However, when the temperature was 600 °C, spalling occurred, so the residual mechanical strength rapidly declined. SEM observations confirmed that polypropylene fibers melted at high temperatures, thereby forming other channels that helped to reduce the internal vapor pressure of the UHPC and maintain a certain residual strength.

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SUMIYA, Hitoshi. „Development of Novel Diamond/cBN Materials via Ultra-high Pressure and High Temperature“. Journal of the Japan Society of Powder and Powder Metallurgy 61, Nr. 7 (2014): 349–54. http://dx.doi.org/10.2497/jjspm.61.349.

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38

Zhang, Buhao, Jie Yin, Jiaqi Zheng, Xuejian Liu, Zhengren Huang, Ján Dusza und Dongliang Jiang. „High temperature ablation behavior of pressureless sintered Ta0.8Hf0.2C-based ultra-high temperature ceramics“. Journal of the European Ceramic Society 40, Nr. 4 (April 2020): 1784–89. http://dx.doi.org/10.1016/j.jeurceramsoc.2019.11.043.

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TAKAHASHI, Susumu, und Kiichi KANDA. „Ultra-high-temperature and ultra-low-oxygen atmosphere controlled furnace for development of materials technology.“ Journal of Advanced Science 14, Nr. 3 (2002): 125–30. http://dx.doi.org/10.2978/jsas.14.125.

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40

Al-Jothery, H. K. M., T. M. B. Albarody, P. S. M. Yusoff, M. A. Abdullah und A. R. Hussein. „A review of ultra-high temperature materials for thermal protection system“. IOP Conference Series: Materials Science and Engineering 863 (13.06.2020): 012003. http://dx.doi.org/10.1088/1757-899x/863/1/012003.

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41

Lee, J., R. C. Bradshaw, R. W. Hyers, J. R. Rogers, T. J. Rathz, J. J. Wall, H. Choo und P. K. Liaw. „Non-contact measurement of creep resistance of ultra-high-temperature materials“. Materials Science and Engineering: A 463, Nr. 1-2 (August 2007): 185–96. http://dx.doi.org/10.1016/j.msea.2006.07.160.

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42

Hirakawa, Yuichi, Koichi Kawahara, Fuyuki Yoshida, Hideharu Nakashima und Hiroshi Abe. „High Temperature Deformation Behaviour of Ultra-High Purity Polycrystalline Silicon“. Journal of the Japan Institute of Metals 63, Nr. 9 (1999): 1093–96. http://dx.doi.org/10.2320/jinstmet1952.63.9_1093.

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43

Ichikawa, Hiroshi, Michio Takeda, Tadao Seguchi und Kiyohito Okamura. „Development of the SiC Fibers for Ultra-high Temperature Use.“ Materia Japan 39, Nr. 2 (2000): 190–92. http://dx.doi.org/10.2320/materia.39.190.

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44

Smith, Chase J., Morgan A. Ross, Nicholas De Leon, Christopher R. Weinberger und Gregory B. Thompson. „Ultra-high temperature deformation in TaC and HfC“. Journal of the European Ceramic Society 38, Nr. 16 (Dezember 2018): 5319–32. http://dx.doi.org/10.1016/j.jeurceramsoc.2018.07.017.

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45

Fairbank, G. B., C. J. Humphreys, A. Kelly und C. N. Jones. „Ultra-high temperature intermetallics for the third millennium“. Intermetallics 8, Nr. 9-11 (September 2000): 1091–100. http://dx.doi.org/10.1016/s0966-9795(00)00040-6.

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46

Sani, E., L. Mercatelli, F. Francini, J. L. Sans und D. Sciti. „Ultra-refractory ceramics for high-temperature solar absorbers“. Scripta Materialia 65, Nr. 9 (November 2011): 775–78. http://dx.doi.org/10.1016/j.scriptamat.2011.07.033.

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47

Canadinc, Demircan, William Trehern, Ji Ma, Ibrahim Karaman, Fanping Sun und Zaffir Chaudhry. „Ultra-high temperature multi-component shape memory alloys“. Scripta Materialia 158 (Januar 2019): 83–87. http://dx.doi.org/10.1016/j.scriptamat.2018.08.019.

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48

Liu, Hongtao, Hongmin Ji und Xuemei Wang. „Tribological properties of ultra-high molecular weight polyethylene at ultra-low temperature“. Cryogenics 58 (Dezember 2013): 1–4. http://dx.doi.org/10.1016/j.cryogenics.2013.05.001.

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Skripnyak, V. V., und V. A. Skripnyak. „Predicting the mechanical properties of ultra-high temperature ceramics“. Letters on Materials 7, Nr. 4 (2017): 407–11. http://dx.doi.org/10.22226/2410-3535-2017-4-407-411.

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50

Li, Fei, Xiao Huang, Ji-Xuan Liu und Guo-Jun Zhang. „Sol-gel derived porous ultra-high temperature ceramics“. Journal of Advanced Ceramics 9, Nr. 1 (Februar 2020): 1–16. http://dx.doi.org/10.1007/s40145-019-0332-6.

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