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Artykuły w czasopismach na temat "Physico-Mechanical and hygro-Thermal properties"
Cao, Rulong, Juhani Marttila, Veikko Möttönen, Henrik Heräjärvi, Pekka Ritvanen i Erkki Verkasalo. "Mechanical properties and water resistance of Vietnamese acacia and rubberwood after thermo-hygro-mechanical modification". European Journal of Wood and Wood Products 78, nr 5 (18.06.2020): 841–48. http://dx.doi.org/10.1007/s00107-020-01552-7.
Pełny tekst źródłaNshimiyimana, Philbert, Adamah Messan i Luc Courard. "Physico-Mechanical and Hygro-Thermal Properties of Compressed Earth Blocks Stabilized with Industrial and Agro By-Product Binders". Materials 13, nr 17 (26.08.2020): 3769. http://dx.doi.org/10.3390/ma13173769.
Pełny tekst źródłaHsu, Hsiang Chen, Li Ming Chu, Lih Shan Chen i Shen Li Fu. "Comprehensive Hygro-Thermo-Vapor Pressure Model for CMOS Image Sensor". Key Engineering Materials 419-420 (październik 2009): 493–96. http://dx.doi.org/10.4028/www.scientific.net/kem.419-420.493.
Pełny tekst źródłaDong, Wanguo, Chunlin Liu, Xueben Bao, Tengfei Xiang i Depeng Chen. "Advances in the Deformation and Failure of Concrete Pavement under Coupling Action of Moisture, Temperature, and Wheel Load". Materials 13, nr 23 (4.12.2020): 5530. http://dx.doi.org/10.3390/ma13235530.
Pełny tekst źródłaOUEDRAOGO, Adelaïde Lareba, Adamah MESSAN, Etienne MALBILA, Emmanuel OUEDRAOGO, Dieudonné Joseph BATHIEBO, Florent pèlèga KIENO i Philippe BLANCHART. "Thermo-Physical, Mechanical and Hygro-Thermal Properties of Newly Produced Aerated Concrete". Journal of Materials Science and Surface Engineering 8, nr 2 (2021): 1021–28. http://dx.doi.org/10.52687/2348-8956/823.
Pełny tekst źródłaPedergnana, Matthieu, i Soofia Tahira Elias Ozkan. "Hygro-Thermal, Hydric, and Mechanical Properties of Fibre and Aggregate-Reinforced Earth Plasters". International Journal of Digital Innovation in the Built Environment 10, nr 2 (lipiec 2021): 29–45. http://dx.doi.org/10.4018/ijdibe.2021070103.
Pełny tekst źródłaAdam, Laurentiu, i Dorina-Nicolina ISOPESCU. "PHYSICO-MECHANICAL PROPERTIES INVESTIGATION OF HEMPCRETE". Journal of Applied Life Sciences and Environment 55, nr 1(189) (2022): 75–84. http://dx.doi.org/10.46909/alse-551047.
Pełny tekst źródłaYu, Peiyang, Peng-Zhi Pan, Guangliang Feng, Zhenhua Wu i Shankun Zhao. "Physico-mechanical properties of granite after cyclic thermal shock". Journal of Rock Mechanics and Geotechnical Engineering 12, nr 4 (sierpień 2020): 693–706. http://dx.doi.org/10.1016/j.jrmge.2020.03.001.
Pełny tekst źródłaYaşar, E., Y. Erdoğan i H. Güneyli. "Determination of the thermal conductivity from physico-mechanical properties". Bulletin of Engineering Geology and the Environment 67, nr 2 (16.02.2008): 219–25. http://dx.doi.org/10.1007/s10064-008-0126-5.
Pełny tekst źródłaTurgut, Paki, Mehmet Irfan Yesilnacar i Husamettin Bulut. "Physico-thermal and mechanical properties of Sanliurfa limestone, Turkey". Bulletin of Engineering Geology and the Environment 67, nr 4 (26.03.2008): 485–90. http://dx.doi.org/10.1007/s10064-008-0145-2.
Pełny tekst źródłaRozprawy doktorskie na temat "Physico-Mechanical and hygro-Thermal properties"
Se, Golpayegani Motamedi Aida. "Caractérisation du bois de Mûrier blanc (Morus alba L.) en référence à son utilisation dans les luths Iraniens". Thesis, Montpellier 2, 2011. http://www.theses.fr/2011MON20157.
Pełny tekst źródłaThis work aims at studying the several divers properties (Physico-mechanical, biological and chemical) of white Mulberry (Morus alba L.), as the leading material used in fabrication of Iranian lutes. The vibrational characteristic of this species is measured in relation with secondary metabolites (extractives) as well as three artisanal hygro-thermal treatments adapted to laboratory scale.White Mulberry wood is characterized with a moderate specific modulus, less than expected damping and a low anisotropy between three directions. It is specified that this species cannot be described with the same standards as other woods used in European classical instruments. Using independent and successive extractions reveal that two types of extraneous compounds govern the damping in this wood, some raising it, when the rest have a decreasing effect. These compounds are not all extractable by the same solvents.Long time immersion in water at ambient temperature hardly changes mechanical properties of the species, however, it can leave wood with irreversible defects. Hot water treatment at 70°C results for damping and moduli to be increased and decreased respectively. These changes are time related. Several mild desorption and adsorption cycles, seem to reduce damping without greatly endangering the moduli. White Mulberry wood is found to be very durable towards fungi, even in extreme conditions. Water leaching seems to be affectless on this species resistance towards basidiomycetes. This wood is rated moderately durable towards termites and becomes sensible after water leaching. Extractives seem to play important role in this wood natural resistance, as they are found to have toxic effect on termites. Resorcinol, a phenol, is the leading compound in the extractives of white Mulberry. Fatty acids, sterols, higher hydrocarbons, and aromatic compounds are also found as the constituents of secondary metabolites. Resorcinol is documented to cause irritations close to what is normally experienced by the fabricants working with white Mulberry for a long time
Daher, Suzanne. "Optimisation de la formulation d'un béton de chanvre : effet des interactions physico-chimiques entre les particules végétales et le liant". Electronic Thesis or Diss., Amiens, 2022. http://www.theses.fr/2022AMIE0041.
Pełny tekst źródłaHemp concrete is one of the most popular bio-based building materials in France. It is often used as a filling and / or insulation material, in an eco-construction system. Given its high porosity, this concrete has particularly advantageous thermal and hygric performance. However, the lighter this hemp concrete, the higher its level of thermal insulation, while its mechanical properties decrease. This is why it is necessary to optimize its formulation, in order to obtain the best compromise between its mechanical, hygric and thermal performance, depending on the field of use (carrier and / or insulator). The first optimization approach considered consists in varying the rate of plant aggregates in the composition of the concrete, but also the nature and quantity of binder used. The objective of this thesis is to study the mechanical, thermal and hygric properties of a hemp concrete according to its formulation. In this thesis, we are interested in the feasibility of lightweight building materials based on hemp particles and a lime-based binder, which present good mechanical performances. The main objective is to overcome the migration process of free Ca2+ to the lumen of hemp particles that are responsible for their degradation and which, consequently, induce the loss of mechanical performance of the final composite material. To achieve this, a fraction of the base binder is replaced by metakaolin. First, we studied the influence of different percentages of metakaolin on the carbonation of two lime-based control mortars: NHL5 lime and Tradical PF70 pre-formulated lime. Then, we measured their mechanical resistances in compression and flexion in order to define an optimal formulation. Thus, the finished composite materials are tested for different volume percentages (2v and 3v) of hemp particles. The results of the characterization of the physico-mechanical properties of the specimens are presented and argued. A close relationship between the metakaolin content and the physico-mechanical properties of the hemp concrete has been observed, due to the additional hydration products derived from pozzolanic reaction mechanism. The MEB and EDX analyses have shown the enhancement of hemp particles-binder Interfacial Zone Transition, while the pozzolanic reaction leads to reduce the migration process of free Ca2+ to lumen of vegetable particles thus reducing their mineralization. Then, we compared the hygro-thermal performances of hemp concretes formulated with respectively 2 volumes and 3 volumes of plant particles for one volume of binder, without or with 20% metakaolin, the optimal percentage defined previously. This study is particularly useful to establish the adequate proportions of admixtures to be used in concretes intended for renovation works or new constructions. Generally speaking, and depending on the formulation, we obtain a material that is a good or even excellent regulator of ambient humidity, with interesting thermal performances for the insulation of buildings. This characterization work completes the many works already carried out on biobased concrete with different types of plants, and should make it possible to feed the databases essential for the simulation of the behavior of a wall or of the envelope of a building under different climates and guarantee the comfort of the occupants
Saetung, Anuwat. "Preparation of polyurethane foams from hydroxytelechelic oligoisoprenes obtained by controlled degradation of natural rubber : study of their physico-mechanical, thermal, and acoustic properties". Le Mans, 2009. http://cyberdoc.univ-lemans.fr/theses/2009/2009LEMA1006.pdf.
Pełny tekst źródłaPolyurethane foam (PUF) is the largest of polyurethane materials widely studied and used in many applications such as furniture, automobile, insulation, acoustic absorber. Hydroxyl compounds currently used in the production of PUF are petrochemical products (polyester and polyether polyols). However, they have some disadvantages as they are non-renewable resources, they may cause environmental pollution, and they tend to be exhausted in the near future. Natural rubber (NR) is an interesting choice to use as a starting material in PUF synthesis, due to the fact that they are renewable source, abundant polymer and they have good mechanical properties and are easy to chemically modify. In this work, a new hydroxytelechelic natural rubber (HTNR) having a hydroxyl functionality of 2 was successfully performed via controlled epoxidation and cleavage of natural rubber, following by a selective reduction reaction of the obtained carbonyltelechelic oligoisoprenes. These HTNR with different molecula r weights (1000-3400 g mol-1) were reproducible obtained with high yields. Chemical modifications on HTNR were performed by epoxidation (10-35%, EHTNR), hydrogenation and oxirane opening reactions. The different microstructures of these oligomers were evidenced by the characterization techniques FT-IR, NMR, SEC and MALDI-TOF MS. Their thermal properties were also investigated by TGA and DSC. Polyurethane foams were successfully prepared from a renewable source, HTNR with different molecular weights and EHTNR having a variation of epoxide content, by one shot technique. The chemical structure and cell structure as well as physico-mechanical, thermal and acoustic properties were characterized to compare with commercial polyol analogues. It was investigated that the obtained HTNR based foams are open cell structures and have cell dimensions between 0. 38 and 0. 47 mm. Concerning, physico-mechanical properties, HTNR1000 based foam exhibits higher tensile and compressive strengths than commercial polyol analogue, but the elongation at break is lower. However, HTNR3400 based foam shows the best for elastic properties. In series of EHTNR based foams, the tensile and compressive strengths give a trendy increasing with increasing the epoxide content. Same results were observed with increasing amount of 1,4-butanediol. For thermal properties, HTNR based foams show better low temperature flexibility than that based on commercial polyol. Moreover, HTNR based polyurethane foams give an excellent acoustic absorber
Apreutesei, Mihai. "Temperature impact on thermal evolution of advanced PVD ceramic and metallic glass thin films : Physico-chemical and microstructural analysis". Thesis, Lyon, INSA, 2015. http://www.theses.fr/2015ISAL0009/document.
Pełny tekst źródłaIn the recent years the industrial requirements to develop new functional materials able to overcome the severe conditions during machining operation are continuously increasing. Researchers then must find novel solutions to respond to their severe industrial requirements. To coat the tool surface with advanced coatings is the most efficient solution. New nanostructured materials may nowadays exhibit unique mechanical, physical and chemical properties ensuring notable degradation resistance where the surface protection of materials against corrosion, wear, friction or oxidation is a key issue, particularly when operating in hostile environments. Within the scope of this Ph.D. thesis the influence of the temperature on the structural stability of two different PVD ceramic and metallic glass thin films is proposed. The main goal consists in the development of two distinct classes of thin films, with a wide range of properties. In order to prepare these films, the project will be focused on the study on the influence of PVD deposition conditions in the particular film’s growth characteristics: chemical composition, structure, morphology and the subsequent changes in the main properties of the thin films, namely oxidation and crystallization resistance, especially. For that purpose we adopted the multiscale approach. The first part is related to the ceramic CrN-based coatings to give new functionalities and improve the tools’ surface with the primary aim to increase their lifetime. Secondly, new protective materials able to better protect the exposed surfaces against high temperature oxidation have been proposed, namely CrAlN and CrAlYN coatings as will be evidenced in this manuscript. The second part of the manuscript is dedicated to the innovative Zr-Cu thin films metallic glasses prepared by a PVD magnetron co-sputtering method with the objective to investigate the amorphization ability and their structural properties. Their excellent properties at room temperature have recently attracted attention as a new class of materials with great potential for engineering applications due to unique mechanical and physico-chemical characteristics (high elastic strain limit, corrosion resistance…). Finally, an important approach during the course of this thesis was the real time observation of the structure and surface modifications during heating by means of in situ methods. The thin films proposed during the course of the work could be straightforward used as surface engineering solutions to protect and extend the lifetime of the materials and components
Sani, Rababe. "Étude des transformations microstructurales de mélanges argile/Combustibles Solides de Récupération (CSR) lors de la cuisson : relations entre propriétés physico-chimiques, mécaniques et thermiques". Thesis, Ecole nationale des Mines d'Albi-Carmaux, 2018. http://www.theses.fr/2018EMAC0005/document.
Pełny tekst źródłaThe valorization of co-products rich in organic and inorganic materials as additives in formulations based on clay matrix can improve both the mechanical and thermal performances of ceramic materials as well as the energy balance of the manufacturing processes of these products. This study focused on the incorporation of Solid Recovered Fuels (SRF) into the clay ceramics for civil engineering in close collaboration with TERREAL as part of the ANR funded LabCom RESPECTc project. Firstly, two SRF were selected and used as additives to improve the properties of ceramic materials from to clay mixture deposits named ML and MC from TERREAL. The influence of the nature, the amount of SRF, the grain size of SRF and the nature of clay matrix on the physico-chemical, mechanical and thermal properties of the clay/SRF mixtures were studied between 30°C and 1100°C. In all cases, the addition of SRF into the clay mixture (ML or MC) has enhanced the insulating nature of the ceramic materials by reducing their thermal conductivity. The addition of SRF has also improved the mechanical properties of the ceramic materials, depending on the nature and the amount of SRF added, the rate and the nature (shape, size and distribution) of the porosity created. The study demonstrated that interactions between clay minerals and inorganic elements of SRF have a significant effect on mechanical and thermal properties. The results showed that the addition of 4 wt.% of SRF15-1 containing an ash content of 65.7 wt.% into clay matrix ML led to increase the mechanical strength of the material based on the clay matrix ML of the order of 32%. Then, a kinetic model of thermal sintering based on the dimensional variations of ceramic materials between 650°C and 1000°C was developed from thermomechanical analysis (TMA) of the clay mixtures (with or without SRF). The main objective is to better understand the mechanism of the thermal sintering involved. The model developed showed a good adequacy with the experimental data. The results showed that the thermal sintering step of these mixtures is carried out by the presence of a liquid phase and that the addition of SRF has accelerated the densification of ceramic materials. This has led to decrease the usual firing temperature of ceramic materials, allowing a significant energy savings. Finally, an environmental assessment was carried out during the firing of clay/SRF mixtures. This study was particularly focused on the contribution of SRF to the energy balance and impact of critical gas emissions such as CO2, CO and HCl. The results showed that CO2 and CO emissions during firing of clay/SRF mixtures increased due to the thermal decomposition of the organic matter of SRF and that less than 50 wt.% of chlorine was converted to HCl (18-31 ppm). The energy balance showed that the addition of SRF into the ML matrix compensates for a significant part of the natural gas usually used as fuel during firing of these ceramic materials. This was reflected by a thermal energy saving and reduction of CO2 emissions from the decarbonatation of the clay matrix
Conley, Jill Anne. "Hygro-thermo-mechanical behavior of fiber optic apparatus". Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/17308.
Pełny tekst źródłaSani, Rababe. "Étude des transformations microstructurales de mélanges argile/Combustibles Solides de Récupération (CSR) lors de la cuisson : relations entre propriétés physico-chimiques, mécaniques et thermiques". Electronic Thesis or Diss., Ecole nationale des Mines d'Albi-Carmaux, 2018. http://www.theses.fr/2018EMAC0005.
Pełny tekst źródłaThe valorization of co-products rich in organic and inorganic materials as additives in formulations based on clay matrix can improve both the mechanical and thermal performances of ceramic materials as well as the energy balance of the manufacturing processes of these products. This study focused on the incorporation of Solid Recovered Fuels (SRF) into the clay ceramics for civil engineering in close collaboration with TERREAL as part of the ANR funded LabCom RESPECTc project. Firstly, two SRF were selected and used as additives to improve the properties of ceramic materials from to clay mixture deposits named ML and MC from TERREAL. The influence of the nature, the amount of SRF, the grain size of SRF and the nature of clay matrix on the physico-chemical, mechanical and thermal properties of the clay/SRF mixtures were studied between 30°C and 1100°C. In all cases, the addition of SRF into the clay mixture (ML or MC) has enhanced the insulating nature of the ceramic materials by reducing their thermal conductivity. The addition of SRF has also improved the mechanical properties of the ceramic materials, depending on the nature and the amount of SRF added, the rate and the nature (shape, size and distribution) of the porosity created. The study demonstrated that interactions between clay minerals and inorganic elements of SRF have a significant effect on mechanical and thermal properties. The results showed that the addition of 4 wt.% of SRF15-1 containing an ash content of 65.7 wt.% into clay matrix ML led to increase the mechanical strength of the material based on the clay matrix ML of the order of 32%. Then, a kinetic model of thermal sintering based on the dimensional variations of ceramic materials between 650°C and 1000°C was developed from thermomechanical analysis (TMA) of the clay mixtures (with or without SRF). The main objective is to better understand the mechanism of the thermal sintering involved. The model developed showed a good adequacy with the experimental data. The results showed that the thermal sintering step of these mixtures is carried out by the presence of a liquid phase and that the addition of SRF has accelerated the densification of ceramic materials. This has led to decrease the usual firing temperature of ceramic materials, allowing a significant energy savings. Finally, an environmental assessment was carried out during the firing of clay/SRF mixtures. This study was particularly focused on the contribution of SRF to the energy balance and impact of critical gas emissions such as CO2, CO and HCl. The results showed that CO2 and CO emissions during firing of clay/SRF mixtures increased due to the thermal decomposition of the organic matter of SRF and that less than 50 wt.% of chlorine was converted to HCl (18-31 ppm). The energy balance showed that the addition of SRF into the ML matrix compensates for a significant part of the natural gas usually used as fuel during firing of these ceramic materials. This was reflected by a thermal energy saving and reduction of CO2 emissions from the decarbonatation of the clay matrix
Cunha, Paulo Waldemiro Soares. "Estudo sobre as potencialidades de comp?sitos ? base de gesso e fibras de coco seco para aplica??o na constru??o civil". Universidade Federal do Rio Grande do Norte, 2012. http://repositorio.ufrn.br:8080/jspui/handle/123456789/12847.
Pełny tekst źródłaThe use of gypsum, one of the oldest building materials for the construction industry in the country has been experiencing a significant and steady growth, due to its low cost and some of its properties that confer comparative advantage over other binder materials. Its use comprises various applications including the coating of walls and the production of internal seals and linings. Moreover, the fibers are being increasingly incorporated into arrays fragile in an attempt to improve the properties of the composite by reducing the number of cracks, the opening of the same and its propagation velocity. Other properties, depending on the function of the component material or construction, among these thermal and acoustic performances, are of great importance in the context of buildings and could be improved, that is, having better performance with this embodiment. Conduct a comparative study of physico-mechanical, thermal and acoustic composite gypsum incorporating dry coconut fiber, in the form of blanket, constituted the main objective of this work. Improving the thermal and acoustic performances of precast gypsum, used for lining and internal vertical fences of buildings, was the purpose of development of these composites. To evaluate the effect of fiber content on the properties of the composites were used to manufacture the composite layer with different thicknesses. The composites were fabricated in the form of plates with dimensions of 500x500x24mm. To facilitate the comparative study of the properties were also made with material gypsum boards only. We then determined the physico-mechanical, thermal and acoustical plaster and composites. The results indicated that the composites were significant gains in relation to thermal performance and also acoustic, in certain frequency range, increasing the thickness of the blanket. Concerning other physical-mechanical properties, the results showed that although the compressive strength was lower than for the composite did not occur after a fracture catastrophic failure. The same trend was observed with regard to resistance to bending, since the composites have not suffered sudden rupture and still continued after the load supporting point of maximum load
A utiliza??o do gesso, um dos mais antigos materiais de constru??o, pela ind?stria da constru??o civil no Pa?s, vem experimentando um sens?vel e constante crescimento, em fun??o do seu baixo custo e de algumas de suas propriedades que lhe conferem vantagem comparativa em rela??o a outros materiais ligantes. Sua utiliza??o compreende diversas aplica??es entre as quais o revestimento de paredes e a confec??o de veda??es internas e de forros. Por outro lado, as fibras v?m sendo, cada vez mais, incorporadas em matrizes fr?geis, na tentativa de melhorar as propriedades do comp?sito, atrav?s da redu??o do n?mero de fissuras, da abertura das mesmas e da sua velocidade de propaga??o. Dependendo da fun??o do material ou do componente da constru??o, os desempenhos t?rmico e ac?stico, assumem grande import?ncia no contexto das edifica??es e tamb?m poderiam ser melhoradoscom a incorpora??o de fibras. Dentre as fibras vegetais, a fibra de coco seco apresenta um grande potencial, superior ?s vantagens comparativas das demais fibras, tal como uma maior resist?nciafrente ? alcalinidade caracter?stica das matrizes ciment?cias. Realizar um estudo comparativo das propriedades f?sico-mec?nicas, t?rmicas e ac?sticas de comp?sitos ? base de gesso com incorpora??o de fibra de coco seco, sob a forma de manta, constituiu-se no objetivo geral deste trabalho. Para tanto os materiais comp?sitos foram confeccionados em forma de placas, pain?is sandu?ches, com dimens?es de 500x500x24mm, sendo as camadas externas constitu?das pelogesso e a central (recheio) pela manta de fibra de coco seco. Para avaliar a influ?ncia do teor de fibras nas propriedades dos comp?sitos foram utilizadas na confec??o dos mesmos mantas com espessuras de 8 e 10 mm. Para possibilitar o estudo comparativo das propriedades foram tamb?m confeccionadas placas apenas com gesso. Foram ent?o determinadas as propriedades f?sico-mec?nicas, t?rmicas e ac?sticas do gesso e dos comp?sitos. Os resultados indicaram que para os comp?sitos ocorreram ganhos significativos em rela??o aos desempenhos t?rmico e tamb?m ac?stico, na faixa de frequ?ncia de 102,28 Hz a 1.150,00 Hz, ganhos esses crescentes com a espessura da manta. Em rela??o ?s demais propriedades f?sico-mec?nicas, os resultados mostraram que embora a resist?ncia ? compress?o tenha sido inferior para os comp?sitos, as fibras apenas evitaram um rompimento brusco, uma vez que as mesmas n?o atuam como refor?o para esse tipo de solicita??o. O mesmo comportamento ocorreu em rela??o ? resist?ncia ? flex?o, uma vez que os comp?sitos n?o sofreram ruptura brusca e ainda continuaram suportando carga depois do ponto de carga m?xima
Cisse, Ousseynou. "Caractérisation du comportement hygro-mécanique des fibres liberiennes élémentaires issues du chanvre". Thesis, Besançon, 2014. http://www.theses.fr/2014BESA2031/document.
Pełny tekst źródłaThe thesis work joins in the framework in joint supervision between the Polytechnic school in Thies (Sénégal) and the University of Franche-Comté (France)[...]The aim of this thesis is to contribute to the characterization of thermo-hygro-mechanical behaviour of elementary hemp fibres. These fibres used in this work have an average diameter approximately 20µm and useful length of only 10 mm. The méchanical, hygroscopic and thermal coupling testing are realized to provide some understanding of the behaviour of the hemp fibres and to collect details from a database on their mechanical performance.From the uniaxial quasi static tensile tests and creep tests, three categories of behaviours are measured and observed. How ever subject to constant environmental conditions, a fibre hardening is observed under cyclic tensile loading. It was also found that a drop of the initial Young 's modulus of the hemp fibres when the relative humidity gradually increases. Thus, the strain rates measured on the fibres during creep exhibited a speeding up relative humidity cycles are imposed . We found also that the mechanical properties of the fibres decrease under temperature effects. It depends directly on the level and exposure time to temperature
Cohen, Ellann. "Thermal properties of advanced aerogel insulation". Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/67795.
Pełny tekst źródłaCataloged from PDF version of thesis.
Includes bibliographical references (p. 74-76).
Buildings consume too much energy. For example, 16.6% of all the energy used in the United States goes towards just the heating and cooling of buildings. Many governments, organizations, and companies are setting very ambitious goals to reduce their energy use over the next few years. Because the time periods for these goals are much less than the average lifetime of a building, existing buildings will need to be retrofitted. There are two different types of retrofitting: shallow and deep. Shallow retrofits involve the quickest and least expensive improvements often including reducing infiltration around windows, under doors, etc and blowing more insulation into the attic. Deep retrofits are those that involve costly renovation and typically include adding insulation to the walls and replacing windows. A new, easily installable, inexpensive, and thin insulation would move insulating the walls from the deep retrofit category to the shallow retrofit category and thus would revolutionize the process of retrofitting homes to make them more energy efficient. This thesis provides an overview of a concept for a new, easily installable, inexpensive, thin aerogel-based insulation and goes into detail on how the thermal properties of the aerogel were measured and validated. The transient hot-wire method for measuring the thermal conductivity of very low thermal conductivity silica aerogel (1 0mW/m K at 1 atm) along with a correction for end effects was validated with the NIST (National Institute of Standards and Technology) Standard Reference Material 1459, fumed silica board to within 1 mW/mK. Despite the translucence of the aerogel at certain wavelengths, radiation is not an issue through the aerogel during the hot-wire test but may be an issue in actual use as an insulation. The monolithic aerogel thermal conductivity drops significantly with slightly reduced pressure (3.2 mW/m K at 0.1atm). For the final composite insulation, the new silica aerogel formula is a great choice and it is recommended to reduce the pressure around the aerogel to 1 / 1 0 th. In the future, a prototype of an insulation panel combining a 3-D truss structure, monolithic or granular silica aerogel, and reduced pressure will be constructed and tested.
by Ellann Cohen.
S.M.
Książki na temat "Physico-Mechanical and hygro-Thermal properties"
Marghussian, V. K. Thermo-mechanical properties of ceramic fibres. Carnforth, Lancashire, England: Parthenon Press, 1986.
Znajdź pełny tekst źródłaMenard, Kevin Peter. Dynamic mechanical analysis: A practical introduction. Boca Raton, Fla: CRC Press, 1999.
Znajdź pełny tekst źródłaDavid, Porter. Group interaction modelling of polymer properties. New York: M. Dekker, 1995.
Znajdź pełny tekst źródłaTaya, Minoru. Metal matrix composites: Thermomechanical behavior. Oxford: Pergamon, 1989.
Znajdź pełny tekst źródłaLiu, Wei. Thermische Stabilität und mechanische Eigenschaften quasikristalliner Legierungen. Düsseldorf: VDI, 1993.
Znajdź pełny tekst źródłaJ, Arsenault R., red. Metal matrix composites: Thermomechanical behavior. Oxford, England: Pergamon Press, 1989.
Znajdź pełny tekst źródłaMcManus, Hugh L. N., 1958-, Bowles Kenneth J i Lewis Research Center, red. Mechanical properties of degraded PMR-15 resin. [Cleveland, Ohio]: National Aeronautics and Space Administration, Lewis Research Center, 1998.
Znajdź pełny tekst źródłaA, Schneider Gerold, Petzow G, North Atlantic Treaty Organization. Scientific Affairs Division. i NATO Advanced Research Workshop on the Thermal Shock and Thermal Fatigue Behavior of Advanced Ceramics (1992 : Munich, Germany), red. Thermal shock and thermal fatigue behavior of advanced ceramics. Dordrecht: Kluwer Academic Publishers, 1993.
Znajdź pełny tekst źródłaM, Steen, i Lohr R. D, red. Ultra high temperature mechanical testing. Cambridge: Woodhead, 1995.
Znajdź pełny tekst źródłaCampbell, Christian X. Databook on mechanical and thermophysical properties of particulate-reinforced ceramic matrix composites. West Lafayette, IN: Ceramics Information Analysis Center, Center for Information and Numerical Data Analysis and Synthesis, Purdue University, 1995.
Znajdź pełny tekst źródłaCzęści książek na temat "Physico-Mechanical and hygro-Thermal properties"
Rahman, M. R., S. Hamdan i J. C. H. Lai. "Physico-mechanical, Morphological, and Thermal Properties of Clay Dispersed Styrene-co-Maleic Acid Impregnated Wood Polymer Nanocomposites". W Wood Polymer Nanocomposites, 179–97. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-65735-6_10.
Pełny tekst źródłaRahman, M. R., J. C. H. Lai i S. Hamdan. "Acrylonitrile/Butyl Methacrylate/Halloysite Nanoclay Impregnated Sindora Wood Polymer Nanocomposites (WPNCs): Physico-mechanical, Morphological and Thermal Properties". W Wood Polymer Nanocomposites, 237–56. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-65735-6_13.
Pełny tekst źródłaRahman, M. R., J. C. H. Lai i S. Hamdan. "Nanoclay Dispersed Furfuryl Alcohol-co-Ethyl Methacrylate Wood Polymer Nanocomposites: The Enhancement on Physico-mechanical and Thermal Properties". W Wood Polymer Nanocomposites, 275–93. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-65735-6_15.
Pełny tekst źródłaKumar, Rajesh, Rajni Lakhani i Ashok Kumar. "Physico-Mechanical and Thermal Properties of Lightweight Structural Concrete with Light Expanded Clay Aggregate for Energy-Efficient Buildings". W Lecture Notes in Civil Engineering, 175–85. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-6557-8_14.
Pełny tekst źródłaRahman, M. R., S. Hamdan i J. C. H. Lai. "Physico-Mechanical, Thermal, and Morphological Properties of Styrene-co-3-(Trimethoxysilyl)Propyl Methacrylate with Clay Impregnated Wood Polymer Nanocomposites". W Wood Polymer Nanocomposites, 219–36. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-65735-6_12.
Pełny tekst źródłaBenboudjema, Farid, Jérôme Carette, Brice Delsaute, Tulio Honorio de Faria, Agnieszka Knoppik, Laurie Lacarrière, Anne Neiry de Mendonça Lopes, Pierre Rossi i Stéphanie Staquet. "Mechanical Properties". W Thermal Cracking of Massive Concrete Structures, 69–114. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-76617-1_4.
Pełny tekst źródłaJanssen, Jules J. A. "Thermal expansion". W Mechanical Properties of Bamboo, 11. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3236-7_2.
Pełny tekst źródłaVollath, D. "Mechanical and Thermal Properties". W U Uranium, 1–205. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-662-10719-5_1.
Pełny tekst źródłaIrwin, Patricia, Wei Zhang, Yang Cao, Xiaomei Fang i Daniel Qi Tan. "Mechanical and Thermal Properties". W Dielectric Polymer Nanocomposites, 163–96. Boston, MA: Springer US, 2009. http://dx.doi.org/10.1007/978-1-4419-1590-0_6.
Pełny tekst źródłaIrwin, Patricia, Wei Zhang, Yang Cao, Xiaomei Fang i Daniel Qi Tan. "Mechanical and Thermal Properties". W Dielectric Polymer Nanocomposites, 163–96. Boston, MA: Springer US, 2009. http://dx.doi.org/10.1007/978-1-4419-1591-7_6.
Pełny tekst źródłaStreszczenia konferencji na temat "Physico-Mechanical and hygro-Thermal properties"
LECHHEB, Mahdi. "Mechanical and Thermal Properties of Goulmima’s Earth Bricks". W Mediterranean Architectural Heritage. Materials Research Forum LLC, 2024. http://dx.doi.org/10.21741/9781644903117-21.
Pełny tekst źródłaBadan, Aleksandra, i Tomasz Majka. "The influence of vegetable-oil based polyols on physico-mechanical and thermal properties of polyurethane foams." W The 21st International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2017. http://dx.doi.org/10.3390/ecsoc-21-04763.
Pełny tekst źródłaArju, S. N., i A. M. Afsar. "Improvement of physico-mechanical and thermal properties of jute PP composites by using reactive dye and chemicals". W Proceedings of the 13th International Conference on Mechanical Engineering (ICME2019). AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0037777.
Pełny tekst źródłaPark, Seungbae, Jae Kwak, Haojun Zhang, Xin Zhang i Siu-Lung Ng. "Conjugate Effect of Hygro and Thermo-Mechanical Behavior in MEMS Packages". W ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-39756.
Pełny tekst źródłaReddy, D. Harinadha, i Ananth Ramaswamy. "Degradation of concrete elements under thermal and mechanical loads and its repair". W IABSE Congress, Christchurch 2021: Resilient technologies for sustainable infrastructure. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2021. http://dx.doi.org/10.2749/christchurch.2021.0737.
Pełny tekst źródłaMesli, Imane Fatima Zohra, Ahmed Soufiane Benosman, Omar Taleb i Farid Brahim Houti. "Study of the Influence of Various Wastes on the Physico-Mechanical and Thermal Properties of Plaster Composite Materials". W 2024 ASU International Conference in Emerging Technologies for Sustainability and Intelligent Systems (ICETSIS). IEEE, 2024. http://dx.doi.org/10.1109/icetsis61505.2024.10459596.
Pełny tekst źródłaKharlamov, Yu A., i M. Y. Kharlamov. "A Systems Approach for Analyzing Structure-Property Relationships in Thermal Sprayed Coatings". W ITSC2004, redaktorzy Basil R. Marple i Christian Moreau. ASM International, 2004. http://dx.doi.org/10.31399/asm.cp.itsc2004p0753.
Pełny tekst źródłaSaidi, Mohammed. "STUDY OF THE PHYSICO-MECHANICAL AND THERMAL PROPERTIES OF SELF-COMPACTING CONCRETES MADE FROM HIGH ALUMINA REFRACTORY BRICKS WASTE FILLERS". W 18th International Multidisciplinary Scientific GeoConference SGEM2018. Stef92 Technology, 2018. http://dx.doi.org/10.5593/sgem2018/4.2/s18.024.
Pełny tekst źródłaCipri, F., C. Bartuli, T. Valente i F. Casadei. "Electromagnetic and Mechanical Properties of Silica - Aluminosilicates Plasma Sprayed Composite Coatings". W ITSC2007, redaktorzy B. R. Marple, M. M. Hyland, Y. C. Lau, C. J. Li, R. S. Lima i G. Montavon. ASM International, 2007. http://dx.doi.org/10.31399/asm.cp.itsc2007p0507.
Pełny tekst źródłaŠebestová, Pavlína, Vít Černý i Rostislav Drochytka. "The influence of the fireclay waste on the microstructure and the physico-mechanical properties of autoclaved aerated concrete". W The 13th international scientific conference “Modern Building Materials, Structures and Techniques”. Vilnius Gediminas Technical University, 2019. http://dx.doi.org/10.3846/mbmst.2019.128.
Pełny tekst źródłaRaporty organizacyjne na temat "Physico-Mechanical and hygro-Thermal properties"
Hardy, Robert Douglas, David R. Bronowski, Moo Yul Lee i John H. Hofer. Mechanical properties of thermal protection system materials. Office of Scientific and Technical Information (OSTI), czerwiec 2005. http://dx.doi.org/10.2172/923159.
Pełny tekst źródłaBarnes, Eftihia, Jennifer Jefcoat, Erik Alberts, Hannah Peel, L. Mimum, J, Buchanan, Xin Guan i in. Synthesis and characterization of biological nanomaterial/poly(vinylidene fluoride) composites. Engineer Research and Development Center (U.S.), wrzesień 2021. http://dx.doi.org/10.21079/11681/42132.
Pełny tekst źródłaOkuniewski, Maria, Vikas Tomar, Xianming Bai, Chaitanya Deo, Benjamin Beeler i Yongfeng Zhang. Microstructure, Thermal, and Mechanical Properties Relationships in U and UZr Alloys. Office of Scientific and Technical Information (OSTI), czerwiec 2020. http://dx.doi.org/10.2172/1632268.
Pełny tekst źródłaTanrikulu, Ahmet. Microstructure and Mechanical Properties of Additive Manufacturing Titanium Alloys After Thermal Processing. Portland State University Library, styczeń 2000. http://dx.doi.org/10.15760/etd.5972.
Pełny tekst źródłaRamos, Nuno M. M., Joana Maia, Rita Carvalho Veloso, Andrea Resende Souza, Catarina Dias i João Ventura. Envelope systems with high solar reflectance by the inclusion of nanoparticles – an overview of the EnReflect Project. Department of the Built Environment, 2023. http://dx.doi.org/10.54337/aau541621982.
Pełny tekst źródłaChopra, O. K. Estimation of mechanical properties of cast stainless steels during thermal aging in LWR systems. Office of Scientific and Technical Information (OSTI), październik 1991. http://dx.doi.org/10.2172/142528.
Pełny tekst źródłaJackson, T. B., S. Y. Limaye i W. D. Porter. The effects of thermal cycling on the physical and mechanical properties of [NZP] ceramics. Office of Scientific and Technical Information (OSTI), grudzień 1994. http://dx.doi.org/10.2172/102179.
Pełny tekst źródłaSimon, N. J., E. S. Drexler i R. P. Reed. Review of cryogenic mechanical and thermal properties of Al-Li alloys and Alloy 2219. Gaithersburg, MD: National Institute of Standards and Technology, 1991. http://dx.doi.org/10.6028/nist.ir.3971.
Pełny tekst źródłaGill. L51675 Effects of Weldment Property Variations on the Behavior of Line Pipe. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), styczeń 1993. http://dx.doi.org/10.55274/r0010133.
Pełny tekst źródłaVeer, J. van der, i J. van Wortel. L51758 Non-Destructive Assurance of Quality of Heat-Treated Fittings. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), marzec 1997. http://dx.doi.org/10.55274/r0010338.
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