共搜索到17654条信息，每页显示10条信息，共1766页。用时：0小时0分0秒352毫秒
Properties of La2O3-Doped PNSZT Piezoelectric Ceramics Having Tetragonal and Rhombohedral Coexistent Phases Gao Chunhua1,Chen Zhigang1,Huang Xinyou1 (1.School of Materials Science and Engineering... PNSZT) piezoelectric ceramics,in which there are tetragonal and rhombohedral coexistent phases, was studied. A series of piezoelectric ceramics with good properties was obtained, having dielectric......
Properties of La2O3-Doped PNSZT Piezoelectric Ceramics Having Tetragonal and Rhombohedral Coexistent Phases黄新友,高春华,陈志刚摘 要:<正>The relationship between composition and the electric mechanical properties for La2O3-doped lead niobium stibium zirconate titanate(La2O3-doped PNSZT) piezoelectric ceramics,in which there are tetragonal and rhombohedral......
. The results show that pure perovskitic structure was obtained by calcination at 900 ℃ for 2 h. Near the morphotropic phase boundary of Zr concentration x = 0.47, the rhombohedral phase and tetragonal phase... of resonant frequency at morphotropic phase boundary are smaller than others. The variation of resonant frequency reflects the transition from tetragonal phase to rhombohedral phase. The optimized......
Low Temperature Phase Transition Behavior of Ca-Doped Lanthanum Chromites Fu Guifu1,Zhu Xinde1,Ao Qing1,Liu Weiming1,SUN Liangcheng2,Li Shengli1 (1.College of Materials Science and Engineering, Shandong University, Jinan 250061, China;2.Baotou Rare Earths Institute, Baotou 014010, China) Abstract:Phase transition of LaCrO3 and doped-LaCrO3 was studied by DSC, TG and XRD, and thermal expansion......
Phase evolution and room temperature ferroelectric and magnetic properties of Fe-doped BaTiO3 ceramics QIU Shen-yu(邱深玉)1, LI Wang(李 旺)2, LIU Yu(刘 宇)2, LIU Gui-hua(刘桂华)2, WU Yi-qiang(吴毅强)3... were found to be dependent on the doping level as well as the fraction of the hexagonal phase in the ceramics. Key words: Fe-doped BaTiO3 ceramics; phase evolution; ferroelectricity; magnetism 1......
Phase stability and structural distortion of NiO under high pressure ZHANG Wei-bing(张卫兵), HU Yu-lin(胡玉林), TANG Bi-yu(唐壁玉) Key Laboratory of Advanced Materials and Ryeological Properties of Ministry of Education, Department of Physics, Xiangtan University 411105, China Received 10 April 2006; accepted 25 April 2006 Abstract: The phase stability and structural distortion of NiO under high......
Sr2+-doped rhombohedral LiHf2(PO4)3 solid electrolyte for allsolid-state Li-metal batteryQing-Hui Li1,Chang Xu2,3,Bing Huang2,3,Xin Yin11. College of Electrical and Information Engineering,Hunan... rhombohedral NAS ICON structure Li1.4Sr0.2Hf1.8(PO4)3 with a high Li-ion conductivity of 1.62×10-5 S·cm-1 at 25℃,and its conductivity can be improved to 3.4×10-5 S·cm-1 after the densification of the pellet......
......
......
Phase Separation Process at Early Aging Stage of Ni42CrTiAl Jiao shao-yang1,XU Bing-she1,HU lan-qing1,WEI Ying-hui1,HOU Li-feng1 (1.Taiyuan University of Technology, Taiyuan, China) 摘要:Phase... decomposition is500℃. And the solid solution break into the lean and the rich areas, moreover the rich solute areas would have ordering arrangement to form ordering phase. 关键词:alloy; spinodal decomposition......
