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Opto-electronic properties of ZnSSe films for liquid crystal light valve 韩高荣1,杜丕一1,沈大可1 (1.浙江大学硅材料国家重点实验室,杭州,310027;2.香港科技大学物理系,香港九龙) 摘要:用分子束外延法(MBE),在铟锡氧化物(ITO)导电玻璃衬底上生长了ZnSSe薄膜,详细研究了薄膜的光电特性.通过控制反应时的生长参数,制备出了符合紫外液晶光阀设计要求的光导层薄膜.室温下,该薄膜光谱响应截止边的响应度为0.01A/W,紫外/可见光响应对比度大于103.薄膜的暗电阻率随薄膜晶粒增大而减小,在衬底温度为2900C时,所获得的ZnSSe薄膜具有4.3×1011Ω@cm的暗电阻率.频率从40Hz到4000Hz的交流特性测试,也证实该薄膜符合器件紫外成像的工作要求. 关键词:分子束外延; ZnSSe薄膜......
and carbon powders after reduction and carburization at relatively low temperatures in a short time under pure H2 atmosphere. The effects of ball milling time and reaction temperature... and carbon powders) can be obtained by long time ball milling. Increasing the reaction temperature can decrease the formation of Co3W3C and graphite phases and increase the WC crystallite size. Long-time ball......
Preparation and performance research of Ce-TiO2/KL ball photocatalysts于晓娟1,熊领领1,马国平2,梁愿1,刘奎仁11. School of Materials and Metallurgy Northeastern University2. School of Science Changchun University of Science and Technology摘 要:The Ce-TiO2/KL(diatomite) ball photocatalyst was prepared and characterized based on the pretreated diatomite. The results showed......
Preparation and performance research of Ce-TiO2/KL ball photocatalysts于晓娟1,熊领领1,马国平2,梁愿1,刘奎仁11. School of Materials and Metallurgy Northeastern University2. School of Science Changchun University of Science and Technology摘 要:The Ce-TiO2/KL(diatomite) ball photocatalyst was prepared and characterized based on the pretreated diatomite. The results showed......
Fabrication of Lead Zirconate Titanate Powder Using Ultrasonic Ball Milling Technique Wandee Thamjaree1,W. Nhuapeng1,T. Tunkasiri1 (1.Department of Physics, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand) 摘要:In this research, the ultrasonic ball milling technique has been used to fabricate lead zirconate titanate (PZT) ceramics.PZT with the composition nearly......
内燃机气阀用钢的发展现状秦添艳1(1.上海市宝山钢铁股份有限公司特钢事业部)摘 要:阐述了我国内燃机用气阀钢的应用现状和性能要求,介绍国内外常用气阀钢的钢号和标准.根据气阀钢的组织特点,将气阀钢分成马氏体气阀钢,奥氏体气阀钢和高温合金三大类,并对马氏体气阀钢,奥氏体气阀钢进行了性能对比.关键词:气阀钢； 性能； 热处理； 稀土......
Effect of ball milling on hydrogen storage of Mg3La alloy董汉武,欧阳柳章,孙泰,朱敏摘 要:Hydrogen storage and microstructure of ball milled Mg3La alloy were investigated by X-ray diffraction and pres- sure-composition-isotherm measurement. The ball milled Mg3La alloy could absorb hydrogen up to 4wt.% at 300 °C for the first time, along with a decomposing course......
Thermal-hydraulic modeling and analysis ofspool valve with sloping U-shape notch by bond graphLOU Lei(娄磊)1, WU Wan-rong(吴万荣)1, WANG Zhao-qiang(王兆强)2, LIANG Xiang-jing(梁向京)1(1.College of Mechanical...:To increase the efficiency and reliability of the thermodynamics analysis of the spool valve, the precise function expression of the flow area for the sloping U-shape notch orifice versus the spool stroke......
Magnetoresistive behavior and magnetization reversal of NiFe/Cu/CoFe/IrMn spin valve GMRs in nanoscaleCong Yin,Ze Jia,Wei-chao Ma,Tian-ling RenInstitute of Microelectronics & Tsinghua National... spin valve giant magnetoresistance (SV-GMR) in nanoscale were investigated experimentally and theoretically by nanosized magnetic simulation methods. Based on the Landau-Lifshitz-Gilbert equation......
Ball Milling Synthesis and Property of Nd0.7Sr0.3MnO3 ManganitesShunsheng Chen1), Changping Yang1), Lingfang Xu1) and Shaolong Tang2) 1) The Provincial Key Laboratory of Piezoelectric Ceramics..." name="ChDivSummary">Strontium doped perovskite-type Nd0.7Sr0.3MnO3 ceramics were synthesized completely by high-energy ball milling raw oxides of Nd2O3, SrCO3 and MnO2. The optimal ball milling time......
