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(3) (4) Where, G1 and G2 are material shear modulus, k is related with Poisson's ratio υ, k=(3-υ)/(1+υ) for plane stress, k=3-4υ for the plane strain, and the subscripts 1 and 2 refer to two kinds of materials.
Acknowledgements This work is supported by Shandong Province Outstanding Young Scientist Research Award Fund (BS2009ZZ012), and by Shandong Province Higher Educational Science and Technology Program (J10LD04).
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However, there are some inherent drawbacks when the PCMs (phase change materials) are used as the functionally thermal fluids [10, 11].
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Tetraethoxysilane (TEOS) has been immensely used as a precursor to establish an inorganic network in hybrid semi-IPN materials through insitu polymerization [9].
Materials and Methods 2.1 Chemicals and materials: Chemicals used for a polymerization were methyl methacrylate monomer (MMA monomer): (Thai MMA Co., Ltd), linear glycol adipate polyester polyol: (TPRI Co., Ltd), aliphatic hexamethylene diisocyanate: (Bayer Thai Co., Ltd), azo-bis-2,4-dimethyl valeronitrile (ABVN): (Thai Special Chemical Co., Ltd), ethylene glycol dimethacrylate (EGDM): (Fujimori Ltd) and dibutyl tin laurate (DBTL) : (Bayer Thai Co., Ltd).
Leonowens (Thailand) Ltd., Industrial Technology Assistance Program, and Nation Science and Technology Development agency for supplying the materials and allowing us to use equipment for doing the research.
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It advantageously improves the material various properties, for example strength, hardness, toughness, microwave absorption properties, thereby utilizing widely in chemical engineering, materials science and other fields[2-5].
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In Situ Synthesis of a Wear Resistant Layer on the Surface of Low Carbon Steel Produced by Laser Melt Injection Technology Valéria Mertinger1,a, Gábor Buza2,b, Balázs Major3,c 1Institute of Materials Sciences, University of Miskolc, 3515 Miskolc-Egyetemváros, Hungary 2 Institute of Materials Sciences and Technology, Bay Zoltán Nonprofit Ltd., Budapest, Hungary 3Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, 29 Karolina str.
Titanium and its compounds are one of the most frequently used reinforcing particles in iron – ceramic composite materials.
These materials have special characteristics because they are quenchable, their hardness can be increased by heat treatment and they can be quite easily machined.
The point of the technology developed in the Bay Zoltán Institute of Materials Sciences and Technology is to form the reinforcing layer on the surface of the sample in an in situ way by melting the surface of the low carbon steel and the laminar carbon felt using laser beam while the titanium metal powder is simultaneously added to the melt.
Guoa, Microstructure, mechanical and fretting wear properties of TiC stainless steel composites, Materials Characterization 59 (2008), 84-90 [8] Sveda M; Roosz A; Buza G, Formation of lead bearing surface layers on aluminum alloys by laser alloying , Materials Science Forum Volume: 508 (99-104), 2006 [9] L.

Therefore, porous ceramic is widely used in purification separation, gas or liquid filtration, catalyst carrier, special wall materials, heat preservation materials, biological materials, chemical energy storage materials, aviation materials etc.
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Analysis of the approaches to determine crack initiation stress of rock materials in compression tests Li Peng-fei1, a, Cai Qing-chi 1,b 1 School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; a125459315@qq.com, b295807506@qq.com Keywords: rock mechanics; compression condition; crack initiation stress.
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