共搜索到2972条信息，每页显示10条信息，共298页。用时：0小时0分0秒363毫秒
Trans. Nonferrous Met. Soc. China 25(2015) 3252-3257 Preparation of lead-free free-cutting graphite brasses by graphitization of cementite Hai-ou ZHUO, Jian-cheng TANG, Ying-yu XUE, Nan YE School... words: lead-free graphite brass; graphitization annealing; microstructure; machinability 1 Introduction Lead brass, as an important fixture material, is widely used in many applications, such as lock......
MULTIFUNCTION IN SINGLE-SINTERED SrTiO3 CERAMICS徐庆摘 要:<正>The multifunction of SrTiO3 ceramics pre-pared by a single-sintering process is investigated. It is foundthat both the oxidizing annealing temperature and time showsingnificant influences on multifunction. The characteristicsof grain and grainboundary are analysed by means of ACimpedance......
Article ID: 1003-6326(2005)02-0229-04 Effects of B2O3-SiO2 doping on electrical properties of Ba0.65Sr0.35TiO3 ceramics ZHANG Tian-jin(章天金), JIANG Juan(江 娟), ZHANG Bai-shun(张柏顺), GU Hao-shuang(顾豪爽), LIU Jiang-hua(刘江华) (School of Physics and Electronic Technology, Hubei University, Wuhan 430062, China) Abstract: Ba0.65Sr0.35TiO3 ceramics doped with B2O3-SiO2 glass composition were......
: A Influence of Bi, Ag on microstructure and properties of Sn-Zn lead-free solder WU Wen-yun, QIU Xiao-ming, YIN Shi-qiang, SUN Da-qian, LI Ming-gao (School of Materials Science and Engineering, Jilin University, Changchun 130025, China) Abstract: The influences of the addition of Bi, Ag to Sn-9Zn lead-free solder on the microstructure, wettability and mechanical properties were studied. The results......
. Therefore, it is easy to control electrodeposition conditions by using methanesulfonate electrolyte. Key words: electrodepositon; lead-free electrolyte; Bi-Cu film; current efficiency ...): 0034-043 [7] TOMIKAWA T, FUWA Y, SHIMURA Y. Advance of lead free of sliding bearing of bismuth overlay [J]. Transactions-Society of Automotive Engineers of Japan, 2004, 35: 123-126. ......
composition on the electric machine properties of phase coexistent La2O3-doped PNSZT piezoelectric ceramics was analyzed and discussed. Key words:ceramics; La2O3; lead niobium stibium zirconate titanate...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......
Article ID: 1003-6326(2005)02-0257-04 Preparation of porous hydroxyapatite ceramics with starch additives YANG Lei(杨 磊), NING Xiao-shan(宁晓山), CHEN Ke-xin(陈克新), XIAO Qun-fang(肖群芳), ZHOU He-ping(周和平) (National Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China) Abstract: Porous ceramics......
component in the Fe-doped BaTiO3 ceramics will lead to greater MS and smaller HC. The decrease of HC with the increase of the hexagonal phase component could be due to less tetragonal/hexagonal phase... 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......
Thermoelectric Properties of Ca3Co4O9 Ceramics漆小玲1,2,曾令可11. College of Materials Science and Engineering, South China University of Technology2. Educational Ministry’s Key Lab of Enhanced Heat Transfer and Energy Conservation, School of Chemistry and Chemical Engineering, South China University of Technology摘 要:Ca3Co4O9 ceramics were prepared using......
Preparation and Luminescence of Er3+ Doped Oxyfluoride Glass Ceramics Containing LaF3 Nanocrystals Wang Minquan1,Qiao Xusheng1,Wang Jin1,Fan Xianping1 (1.Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China;2.State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China) Abstract:Er3+ doped transparent oxyfluoride glass ceramics......
