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after annealing. Annealing can affect the crystalline microstructure and surface microstructure of the alloy after substitution. Key words: Curie temperature; annealing; magnetic refrigeration... an important break-through in the research of room temperature magnetic refrigeration[8,9]. But their Curie temperature was only 276 K, and the giant magnetocaloric effect decreased vastly during the very wide......
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improved by Nd-doping.The dielectric property measurements indicate that the Curie temperatures of Bi4-xNdxTi3O12 decrease with Nd-doping.The variations of dielectric loss suggest that the mobility of the domain wall increases and the oxygen vacancy concentration decreases with doping. Key words:neodymium-doping; remnant polarization; Curie temperature; remnant polarization; dielectric loss; [全文内容正在......
that some negative exchange couplings occurring at six energy levels induce the distinct decrease of Curie temperature and the magnetic moment per Co.The valence electron numbers of 2.48, which... to the magnetic coupling between Sm and Co, which results in the long-range ferromagnetic-order inside the SmCo5 compound. Key words:electronic structure; atomic magnetic moment; exchange coupling; Curie......
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Piezoelectric properties of low loss and high Curie temperature (Bi, La)FeO3-Pb(Ti, Mn)O3 ceramics with Mn dopingSHI Guiyang, WANG Dalei, BU Shundong, JIN Dengren, and CHENG Jinrong School..., and 124 pC1·N-1 and 37×10-3 Vm·N-1 are achieved for BLF-PTM of x=0.01. The results indicate that Mn modified BLF-PTM is a competitive high power and high temperature piezoelectric material......
with heat treatment. After annealing at the temperatureequal to the substrate temperature during deposition, the saturation magnetizationdecreased. Key words:multilayer film; EB-PVD; Curie transitiou... and Astronautics,Beijing 100083,China) Abstract:FeNi multilayer films were prepared by EB-PVD technique. A modified TG-DSCapparatus was used to measure their Curie temperatures, which were around......
concentration and the relief of structural distortion. Key words:Sr2Bi4Tis O18 ceramic; lanthanide substitution; Curie temperature; remnant polarization; [全文内容正在添加中] ......
-paraelectric phase transition temperature (i.e. Curie point) of Ba1-xSrxTiO3 (BST, x=0~0.4) ceramics was investigated, and then BST graded ceramics with controllable transition temperature zone were fabricated and characterized for their dielectric properties. The results show that with the increase of ST content, c/a ratio and Curie point of both doped and undoped ceramics decreased linearly......
transformation temperature Tm and Curie point Tc are in linear relation to quenching temperature. Tm increases by 9 K and Tc increases by 7.5 K for every 10 K increasing in quenched temperature. Quenched from... by measuring continuously. The original and final temperature (As and Af) of martensitic transfor- mation inverse were obtained among temperature promoted by measuring continuously. Curie point(Tc......
