In-situ Raman Observations of PLZT Ferroelectric Ceramics under Stress Fields [PDF]
, 2015 在外场作用下铁电陶瓷材料的畴变会造成材料微结构的变形，最终会引发材料的性能退化、材料失效。因此了解铁电材料的破坏机理，研究外场作用下铁电材料的畴变规律，对提高铁电材料的使用价值具有指导性的意义。为探讨力场作用下铁电陶瓷的畴变规律，本论文开展了外力场作用下铁电陶瓷拉曼光谱变化的原位观测研究。论文工作包括：利用固相反应法合成了组成为Pb0.9La0.1(Zr0.52Ti0.48)0.975O3且晶粒尺寸（约5m）适于原位拉曼光谱观测的铁电多晶陶瓷；对合成出的PLZT铁电陶瓷进行化学组分 ...
梁丽苹
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[[alternative]]Preparation and Characterization of Coupled Photocatalysts [PDF]
計畫編號：NSC93-2214-E032-007研究期間：200408~200507研究經費：843,000[[abstract]]本研究計畫將以溶膠-凝膠法製備TiO2/ZnO、TiO2/WO3 或TiO2/ZnO-WO3 之複合型 光觸媒奈米粉體與薄膜，並探究觸媒化學組成與製程參數對其光催化效能及超親水性的 影響。製得的觸媒粉體與薄膜將以x-光繞射儀、掃瞄式電子顯微鏡、穿透式電子顯微鏡、 熱分析儀及x-射線光電子光譜儀分析，以瞭解產物物理及化學性質與製程參數的關係 ...
余宣賦
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Effects of Electropulsing Treatment on the Microstructure and Mechanical Property of M2 High-speed Steel [PDF]
Using conventional heat treatment combined with electrical pulse treatment （abbreviated EPT） ，the M2 high-speed steel was processed and the microstructure was observed using microscope， SEM and EBSD， the bending resistance of the specimen was tested. The
Zhang Jiatao, Liu Zhaohua, Ye Lirun
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Dianci bileiqi, 2006 针对镨系ZnO电阻片磨片前后非线性性能的变化,利用X射线衍射仪、扫描电子显微镜及X射线能谱仪对电阻片表面和本体进行分析。结果表明:镨系ZnO电阻片表面层与本体从组分、物相以及微观结构方面均有较大差异,表面层ZnO晶粒尺寸较小,为（2.0～3.1）μm,大小比较均匀,并且在晶界存在约0.7μm的富Pr相,有利于非线性的形成;而本体内的晶粒尺寸较大,为（3.0～4.8）μm,晶界几乎无杂相。磨片后ZnO电阻片表面成分的磨损是导致其非线性性能变差的主要原因。
贺西民, 刘炜
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One-dimensional Model Calculation for Polycrystalline Silicon Solar Cells [PDF]
, 2008 提出了多晶硅太阳电池的一维物理模型,并对其在AM1.5太阳光照下的电池的短路电流密度Jsc、开路电压Voc、填充因子FF和转换效率η进行了模拟计算,重点分析了多晶硅晶粒尺寸和电池厚度对n+/p结构的多晶硅太阳电池性能的影响。模拟中主要引入载流子的有效迁移率和有效扩散长度两个物理量。模拟结果表明,电池效率在厚度50μm以内随厚度的增加而增大,当厚度大于50μm以后趋于饱和;当晶粒尺寸在100μm以内时,电池特性随晶粒尺寸的增加而显著提高,晶粒进一步增大时效率趋于饱和,此时背面复合速率的影响变大。A one-
张妹玉, 陈朝
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Effect of Cold Drawing Deformation and Annealing Treatment on Microstructure and Properties of GH4169 Wire [PDF]
In order to obtain GH4169 alloy wire with stable microstructure and properties， the effects of different cold drawing deformation and annealing process on the microstructure and properties of GH4169 alloy wire were studied.Two cold deformation ...
Li Xinxu, Yu Ang, Su He, Li Lei, Liu Xike, Meng Yu
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Deformation and recrystallization texture features of medium temperature reheated grain oriented silicon steel containing copper [PDF]
, 2016 The unique texture evolution and secondary recrystallization behavior of medium temperature reheated grain oriented silicon steel containing copper were analyzed by comparison with those of conventional grain oriented silicon steel and high permeability ...
LI Hai-jiao +3 more
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Effects of Alloy Elements Nb and V on the Microstructure and Expansion Property of 4J32 Austenite [PDF]
Using optical microscope， scanning electron microscope， and dilatometer etc， this work investigated the effects of alloy elements Nb and V on the austenite microstructure and expansion property of 4J32 alloy.
Wang Yu, Huang Li, Wang Fuming
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Microstructure and impact toughness of hot rolled and tempered low carbon bainitic steel AH80DB [PDF]
, 2016 The microstructure,martensite/austenite(M/A) islands,precipitated phases,high-angle grain boundaries and effective grain size of hot rolled and tempered low carbon bainitic steel AH80 DB were studied by scanning electron microscopy(SEM),transmission ...
DING Yi +6 more
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