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Nano-Structure Observed in Highly Doped Silicon Crystalline

Zhiheng LU Department of Physics , Beijing Normal University , Beijing , 100875 , ChinaDachan WANG Yan LUO Institute of Low Energy Nuclear Physics , Beijing Normal University , Beijing , 100875 , China

材料科学技术（英文）

It was reported that due to the non-linear electrical phenomena,the super-saturated arsenic in silicon single crystalline precipitates during post processing at low temperatures to form different structures.The structure with spatial period of 1.7 to 2.3 nm was observed firstly by TEM on the sample....

关键词: nano-structure , null , null

A NEW TECHNIQUE—ELECTROMAGNETIC CENTRIFUGAL CASTING PROCESS

GE Yunlong YANG Yuansheng JIAO Yuning HU Zhuangqi Institute of Metal Research , Academia Sinica , Shenyang , ChinaGAO Yunyan JIA Guanglin Northeast University of Technology , Shenyang , China associate professor , Institute of Low Energy Nuclear Physics , Beijing Normal University , Beijing , 100875 , China

金属学报(英文版)

A new technique of centrifugal casting under electromagnetic field was firstly proposed and investigated.Taking a heat resisting alloy steel 25Cr20Ni and an Al-Cu alloy as examples,products,though their length,diameter and wall thickness are varied,re- vealed so superior macrostructures that the mec...

关键词: electromagnetic field , null , null , null

Beryllium Surface Modified by B Ion Implantation

HU Renyuan YANG Yushi Institute of Low Energy Physics , Beijing Normal University , China. Beijing Research Institute of Materials and Technology , China.

材料科学技术（英文）

Beryllium is implanted with 100 keV, 2×10~(17) B/cm~2 and post-implanted sample is annealed at 650℃ for 1 h.Hardness measurement indicates that the hardness increases with implantation and can further be modified by post-implantation heat treatment. Profile measurement shows that implantation causes...

关键词: ion implantation , null , null

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