JIANG Qichuan HE Zhenming YAN Jiulin CUI Donghuan WANG Shoushi Jilin University of Technology
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Changchun
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China JIANG Qichuan Associate Professor
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Faculty of Casting Technology
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Jilin University of Technology
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Changchun 130025
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China
金属学报(英文版)
The needle-like and network carbides in as-cast high carbon wear-resistant manganese steels will be nodularized and dispersed,by a large majority,in austenite aider modifying treatment with Mg system agents.The impact toughness of the steels is significantly improved and the hardness is also increased to a certain extent.As a result,the steels can be used in as-casted state without any heat treatment and their wear resistance can be greatly enhanced.
关键词:
Mg modification
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null
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null
ZHANG Lei WANG Peixuan TAO Rong MA Ruzhang ZHANG Guoguang University of Science and Technology Beijing
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Beijing
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China professor
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Department of Materials Physics.University of Science and Technology Beijing.Beijing 100083
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China
金属学报(英文版)
Nucleation and growth of He bubbles at different annealing temperatures T≤1023 K in stain- less steels HR-2 and SS321,implanted with He~+(40-70 keV.1×10~(16)-6× 10~(17) He~+/cm~2),were ohserved under TEM.T=0.45T_m seems to be a transition temperature.The He bubbles continue mainly their nucleation at 0.3T_m< T<0.45T_m,and grow predominantly at T≥0.45T_m,due probably to migration and coalescence by surface diffusion of metal atoms around the bubbles.The apparent activation energies for the growth are found to he 0.41 and 0.31 eV for HR-2 and SS321 respectively.The bubble density in HR-2 is greater than that in SS321 within whole measuring temperature range,and the onset temperature of rapid swelling is also higher.It is believed that the resistance of HR-2 to He is superior to that fo SS321.
关键词:
stainless steel
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null
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null
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null
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null
陈玮
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程继健
无机材料学报
doi:10.3321/j.issn:1000-324X.1999.01.004
为了探索新的透红外材料,本文研究了As2Se3-AsTe-CuI系统玻璃的形成区,制备了一系列不同AsTe和CuI含量的玻璃. 研究表明:该系统玻璃的形成范围相当大,As2Se3-AsTe二元系统可以任何比例形成玻璃,As2Se3-CuI和AsTe-CuI二元系统, 当CuI含量分别达70和40mol%时,仍可形成稳定的玻璃, 直径在20mm厚度在50mm以上的玻璃样品很容易得到. 研究了部分玻璃样品的远红外光谱,结果表明:该系统玻璃的结构单元主要是:[As(SeTe)3-xIx] (x=0～3)、[As2Te4]和[CuI4],随玻璃的成分不同,这些结构单元的相对比例也不同,根据研究结果提出了该系统玻璃的结构模型.
关键词:
硫系卤化物玻璃
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玻璃形成
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玻璃结构
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红外透射材料
刘丽红
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胡志强
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张晨宁
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高岩
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卢珊珊
功能材料与器件学报
doi:10.3969/j.issn.1007-4252.2006.06.012
应用浸渍涂膜法制备了CuI固体电解质薄膜,组装了DSSC电池.用扫描电镜观察了CuI薄膜的表面形貌,四探针电阻仪测定了CuI薄膜的电阻率,XJCM-8太阳电池测试仪测试了DSSC电池的性能结果表明:添加适量的离子液体可以有效地抑制CuI晶粒的生长;提高CuI晶粒与多孔TiO2薄膜孔径尺寸的相配度;减小CuI薄膜的电阻率.这些都是影响CuI固体电解质色素增感太阳能电池性能及稳定性的重要因素.
关键词:
TiO2薄膜
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离子液体
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CuI固体电解质
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色素增感太阳能电池
