共搜索到8880条信息,每页显示10条信息,共888页。用时:0小时0分0秒459毫秒
......
University, Xi’an 710049, China; 3. College of Science, Air Force Engineering University, Xi’an 710051, China Received 10 April 2006; accepted 25 April 2006 Abstract: The lead-free piezoelectric ceramics (1-x)(K0.5Na0.5)NbO3-xLiNbO3(abbreviated as KNLN) were synthesized by a traditional solid state reaction. The effects of Li+ on the sintering characteristic, the phase structure and piezoelectric......
......
Synthesis and Electrical Properties of Li-modified Bi0.5Na0.5TiO3-BaTiO3 Lead-free Piezoelectric CeramicsYunwen Liao1,2) and Dingquan Xiao2) 1) Institute of Applied Chemistry, China West Normal University, Nanchong 637002, China 2) Department of Materials Science, Sichuan University, Chengdu 610064, China摘 要:Lead-free piezoelectric ceramics (1-y)Bi0.5......
Influence of substitution of Nd3+ for Bi3+ on structure and piezoelectric properties of SrBi2-χNdχNb2O9 (χ=0, 0.1, 0.2 and 0.4) SUN Lin(孙 琳)1, CHU Jun-hao(褚君浩)1, YANG Ping-xiong(杨平雄)1, YUE Fang-yu... lowers the piezoelectric properties of SrBi2-χNdχNb2O9 ceramics. Meanwhile, the temperature coefficient of resonant frequency (TCF) decreases when Nd element partially replaces Bi element......
25 April 2006 Abstract: The piezoelectric ceramics xPb(Mn1/3Sb2/3)O3-(1-x)Pb(Zr1/2Ti1/2)O3 (abbreviated as PMS-PZT) were synthesized by traditional ceramics process. The effect of sintering temperature and the amount of Pb(Mn1/3Sb2/3)O3 (abbreviated as PMS) on phase structure, microstructure, piezoelectric and dielectric properties of PMS-PZT ceramics was investigated. The results show......
Transient Response Model of Standing Wave Piezoelectric Linear Ultrasonic Motor时运来,陈超State Key Laboratory of Mechanics and Control of Mechanical Structure, Nanjing University of Aeronautics & Astronautics摘 要:A transient response model for describing the starting and stopping characteristics of the standing wave piezoelectric linear ultrasonic motor......
Effects of titanium coating on property of diamond ZHANG Xiao-fu(张小福), LU An-xian(卢安贤) School of Materials Science and Engineering, Central South University, Changsha 410083, China Received 20...; Abstract: The titanium film was coated on the surface of diamond crystal in order to improve the chemical properties of diamond and the effect of titanium coating on the property......
Tensile property of Al-Si closed-cell aluminum foam YU Hai-jun(尉海军), YAO Guang-chun(姚广春), LIU Yi-han(刘宜汉) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China... increases with increasing relative density. Key words: Al-Si; aluminum foam; closed-cell; tensile property 1 Introduction The unique properties of metallic foams make them useful in a number......
, Zhenjiang 212013, China) Abstract:Lead-free piezoelectric ceramics of (Bi1/2Na1/2)TiO3-BaTiO3(BNT-BT) were prepared by the conventional piezoelectric ceramic preparation technique (free air atmosphere...) and piezoelectric strain constant(d33) of materials start increasing and then decreasing while BaTiO3 additive amount increasing, the ε and d33 of materials have maximum value (ε=1650, d33=120 PC·N-1......