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The variations of magnetization and magnetostriction with temperature and stress were investigated through the analysis of the effective field, induced by temperature and stress. A nonlinear magnetostrictive model of giant magnetostrictive materials was proposed. The proposed model can be used to calculate the magnetostrictive characterization of giant magnetostrictive materials in different temperatures...
Polyimide/silica-alumina (PI/SiO2-Al2O3) hybrid films were prepared via sol-gel process with tetraethoxysilane (TEOS) and aluminum isopropylate (AIP) as inorganic precursors. The presence of SiO2 and Al2O3 inorganic phases and its weight ratio showed a remarkable effect on the microstructure and properties of the polyimide based hybrid films. The chemical structure of hybrid films was analyzed by...
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