材料期刊网

Growth of Diamond Film by Hot-filament CVD and Its Interface Research

HUANG Rongfang CHEN Yan LI Daming GUANG Yiming WEN Lishi SHI Changxu ** Institute of Metal Research , Academia Sinica , Shenyang , 110015 , China+ To whom correspondence should be addressed

材料科学技术（英文）

关键词: HF-CVD , null , null

An Example of the Scientists—Congratulate Professor SHI Changxu on His Seventyth Birthday

DirectorsBoardofInstituteofMetalResearch , AcademiaSinica

金属学报(英文版)

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A special structure in Al-Mg-Li alloy (01420) weld metal

材料科学技术（英文）

A large quantity of laminated fine grain zones were observed in the Al-Mg-Li alloy weld metal by manual TIG, which was not found in ordinary Al alloy welds. The fine grain zone is formed because of the Al-3(Zr,Ti) particles in the filler metal and the manual filling of filler metal in welding process.

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MICROSTRUCTURE AND PROPERTIES OF SiC_w/6061Al COMPOSITE The Author is now with Institute of Metal Research,Academia Sinica,China

MA Zongyi YAO Zhongkai Harbin Institute of Technology , Harbin , China

金属学报(英文版)

The SiC_w/Al composite prepared by squeeze casting has a combination of superior room temperature specific strength and modulus together with excellent thermal properties.The extrusion can make an improvement on the strength and ductility of the composite from 582 MPa as squeeze casted up to 639 MPa,and on the transformation from isotropic to the anisotropic structure.This seems to be explained by the orientation of whiskers and the densification of dislocations in matrix.TEM observation indicates that the stacking fault is the usual planar defect on the SiC_w surface. composite;;SiC whisker;;Al alloy;;microstructure

关键词: composite , null , null , null

Luoyang Institute of Refractories Research Ministry of Metallurgical Industry

ZHONG Xiangchong Luoyang Institute of Refractories Research , Luoyang , China.

材料科学技术（英文）

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Discovery and Research of High Tc Superconductor in the Institute of Physics, Academia Sinica

CHEN Liquan A special member of CCAST (World Laboratory) , Post Address: Institute of Physics , Academia Sinica , P.O. Box. 603. Beijing , China.

材料科学技术（英文）

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Catalytically enhanced dehydrogenation of Li-Mg-N-H hydrogen storage material by transition metal nitrides

Journal of Alloys and Compounds

Motivated by the understanding of dehyrogenation/rehydrogenation reaction mechanisms, we examine the effect of two commercial transition metal nitrides. TaN and TiN, oil the dehydrogenation performance of Li-Mg-N-H system. Both nitrides are catalytically active for accelerating the dehydrogenation reaction of this system. Such catalytic enhancement well persists without hydrogen capacity loss. A catalytic mechanism is proposed Willi reference to the catalytic, model for hydrotreating reactions by transition metal nitrides. (c) 2008 Elsevier B.V. All rights reserved.

关键词: Hydrogen absorbing materials;Nitride materials;molybdenum nitride;system;improvement;catalysts;mechanism;mixtures;hydride;imides;amide;linh2

Technical note: Research and development of localized corrosion rate monitoring instrument for nonpassivable metal in corrosive media

Corrosion

This paper introduces the design of a localized corrosion rate monitoring instrument that can monitor and evaluate the maximum and stable localized corrosion rate of a nonpassivable metal in a corrosive environment by measuring the current density in a corrosion sensor with an occluded anode.

关键词: instrument;localized corrosion rate;monitor

Research on Metal Hydride Compressor System

稀有金属（英文版）

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Chen系统的状态变量周期性反馈控制

李开明 , 李亚洲 , 冯维贵 , 林长

量子电子学报 doi:10.3969/j.issn.1007-5461.2007.05.014

采用非线性反馈控制,用附加了带参数的正弦项对Chen系统进行了有效的控制.随着参数k的逐渐增大,系统的动力学行为呈现出一系列的变化.数值研究结果表明:随控制参数的增大,驱动信号的强度渐大,混沌系统由混沌运动到周期轨道,最终到一相点.

关键词: 混沌 , Chen系统 , 不动点 , Lyapunov指数 , 反馈控制