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axial orientation of Giant Magnetostrictive Materials Preparation and Properties

tals [J]. Metal1. Trans. , 1987, l8A: 223.2 thread of high school, etc. axial orientation of Giant Magnetostrictive Materials Preparation and Properties of 237PreparationandPropertiesofRareEarth-IronGiantMagnetostrictiveMaterialwith AxialAlignmentGaoXuexu, ZhangMaocai, BaoXiaoqian, QiaoYi, ShiZhenhua, ZhouShouzeng (StateKeyLaboratoryforAdvancedMetalsandMaterials, UniversityofScienceandTechnologyBeng, Beijing100083, China) Abstract: Therareearth-irongiantmagnetostrictiveof80kA · m ~ underapre-compressof10MPa. Itismaterialwith axialalignmentwaspreparedbyproposedthatthelargermagnetostrictionstemfromusinghorizontalcrystalgrowthfurnacewithsmalltem-bettercrystalorientation, moremagneticmomentrota-peraturegradient. Thismaterialhasalargermagne'tionroutethanthatof crystalswhenthemateri-tostrictionvalue. = 1540 × 10atamagneticfieldalismagnetized. Keywords: metalmaterials; axialalignment; materialpreparation; magnetostrictivestrain; rareearths (La0.5Gd0.2) Sr0.3MnO3 the magnetocaloric effect Pengzhen Sheng (Department of Physics, Suzhou Teachers College, Anhui Suzhou 234000, China) Abstract: A bit doped Large magnetoresistance materials (Lao.5Gd0.2) Sro. 3MnO3 magnetocaloric effect was studied under different temperature isothermal magnetization (. Fair) curve measurements and calculations and found that with ferromagnetic. Paramagnetic phase transition occurs large magnetocaloric effect,[link widoczny dla zalogowanych], the additional effect of the magnetic exchange will lead to additional magnetic entropy change. Keywords: perovskite; Curie temperature; magnetocaloric effect; rare earth (full text, see: JournalofRareEarths,[link widoczny dla zalogowanych], 2004.22 (2): 232) TiO3 nanometer-sized particle materials doped Y203 structure and electrorheological performance Mashu Zhen,[link widoczny dla zalogowanych], Li Shu-Xin 2, Fu-Hui Liao , Xu Mingyuan 2, LI Jun-Ran, Chen Shumei, Wei Chen officer, Takamatsu (1. Rare Earth Materials Chemistry and Applications, Peking University State Key Laboratory, Beijing 100871, China; 2. Department of Chemistry, Baoding Teachers College, Hebei Province,[link widoczny dla zalogowanych], Baoding 071051; 3. Fuzhou University Department of Mechanical Engineering,[link widoczny dla zalogowanych], Fuzhou 350o02) Abstract: The sol-gel synthesis of nano-size particles TiO3 doped Y203 materials, will be burning material at different temperatures are 5 ER (ER) materials. By x-ray powder diffraction (XRD) analysis to determine the crystal structure of materials by elemental analysis, thermal analysis and XRD analysis to determine the material composition of the particle materials were studied with methyl silicone oil mixture (25 wt% ) composed of ER (ERF), 5 种 the ER properties and dielectric constant ERF (?), dielectric loss (tan8). Key words: inorganic non-metallic materials; crystal structure; ER performance; TiO2 doping; RE (full text, see: JournalofRareEarths. 2004. 22 (2): 242)