材料期刊网，材料期刊，材料类期刊，材料期刊投稿

本文报告了LPCVD 制备的掺硼硅薄膜结构和物理性质分析,发现掺杂比R 在1×10~(-5)—4×10~(-2)的范围内,材料可划分为三种不同的相结构区:非晶态硅(a-Si)、非晶态硅-硼合金(a-Si∶B)和非晶态微晶硅(μc-Si)。物理性质测量也发现三种不同的结构区具有不同的特性和氢化规律。在...

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SNOEK-Ke-K■STER PEAK OF INTERNAL FRICTION IN Fe-P-N ALLOYS

Y.Y.Che , G. Y.Zeng , Y. C. Xu and J. W , Ji(College of Science , Northeastern University , Shenyang 110006 , China)

金属学报(英文版)

The internal friction and precipitate phases of the deformed Fe-P-N alloys have been investigated. It has been found that the ratio of depends on the content of P and the relation holds if the content of N is lower than 30wt.ppm and the c...

关键词: internal friction , null

关于K-p两体问题的相对论修正

王万章 , 张启仁 , 高春媛

原子核物理评论 doi:10.3969/j.issn.1007-4627.2005.04.033

从基本理论出发,导出并求解了含有相对论修正的K介子与质子的两体薛定谔方程.其解可看作有统计解释的波函数.计算了K p

关键词: K-p系统 , 相对论修正 , 散射长度

Crystal structure and thermal properties of compound K(2)Zn(3)(P(2)O(7))(2)

Powder Diffraction

K(2)Zn(3)(P(2)O(7))(2) was synthesized by solid state reaction and its crystal structure was determined by ab initio method from powder X-ray diffraction (XRD) data. The title compound was determined to be orthorhombic with space group

关键词: K(2)Zn(3)(P(2)O(7))(2);structure determination;thermal expansion;coefficient;specific heat;powder-diffraction;refinement;zno

应力比对40CrMnSiMoVA钢P-da/dN-△k曲线影响研究

李淑兰 , 杨玉芬

兵器材料科学与工程 doi:10.3969/j.issn.1004-244X.2008.03.016

在介绍40CrMnSiMoVA钢的力学性能和试验条件基础上,根据金属材料疲劳裂纹扩展的统计分析方法,求出Pa-N和P-da/dN-△k曲线,并对不同应力比条件下的试验数据进行可...

关键词: 断裂 , 40CrMnSiMOVA钢 , P-da/dN-△k曲线 , 应力比

KⅧ-TbLⅣ离子3s3p 3P1-3s2 1S0 的自旋禁戒跃迁

牟致栋 , 魏琦瑛

原子核物理评论 doi:10.3969/j.issn.1007-4627.2004.01.015

在对KⅧ-TbLⅣ离子3s3p 3P1能级结构的多组态相互作用理论HXR方法计算的基础上, 分析了各种效应对等电子...

关键词: KⅧ-TbLⅣ离子 , 自旋禁戒跃迁 , 波长 , 振子强度和跃迁概率

La对Fe-P-N合金Snoek-Ke-K■ster峰的影响

戢景文 , 魏全金 , 张国福 , 赖祖涵 , 陈廷国

金属学报

研究了F? P—N合金加?对Snoek—Ke-Koster(SKK)峰的影响,发现与合金含La,P的原子浓度比(C_(La)/C_

关键词: 内耗 , Snoek-Ke-Koster peak , Fe-P-La-N alloy

Phase relations and flux research for zinc oxide crystal growth in the ZnO-K(2)O-P(2)O(5) system

Journal of Alloys and Compounds

The subsolidus phase relations of the ternary system ZnO-K(2)O-P(2)O(5) were investigated by means of Xray diffraction (XRD). There are 7 binary compounds. 6 ternary compounds and 20 three-phase regions in this system. The phase diagram o...

关键词: ZnO-K(2)O-P(2)O(5) system;ZnO semiconductor;Phase diagrams;X-ray;diffraction;single-crystals;potassium;zno;orthophosphates;monophosphate;equilibria;knowledge;(kpo3)x;na