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材料研究学报  2010, Vol. 24 Issue (2): 187-190    
  研究论文 本期目录 | 过刊浏览 |
热电池阳极材料Li--B合金的力学性能
黄海锋; 刘志坚; 杨晓亮; 王辉;  文佑才
中南大学粉末冶金国家重点实验室 长沙 410083
Mechanical Property of Li–B Alloy Used for Anode Materials of Thermal Battery
HUANG Haifeng; LIU Zhijian; YANG Xiaoliang; WANG Hui; WEN Youcai
The National Key Laboratory for Powder Metallurgy; Central South University; Changsha 410083
引用本文:

黄海锋 刘志坚 杨晓亮 王辉 文佑才. 热电池阳极材料Li--B合金的力学性能[J]. 材料研究学报, 2010, 24(2): 187-190.
, . Mechanical Property of Li–B Alloy Used for Anode Materials of Thermal Battery[J]. Chin J Mater Res, 2010, 24(2): 187-190.

全文: PDF(674 KB)  
摘要: 

考察试验条件对Li--B合金拉伸强度的影响, 研究了Li--B合金锭内部的均匀性。结果表明, 拉伸方向、试验温度和试样轧制厚度对合金的拉伸强度有显著的影响, 强度的最大变化率可达36%; 轧制后合金中LiB化合物纤维的织构对强度有显著的影响, 合金21℃时的平均拉伸强度为24.5 MPa。合金锭心部的强度比边缘的高, 下部的比上部的高; 而边缘的密度大于中心的, 底部的大于上部的; 出现这些结果的原因是, 在合金的制备过程中重力和离心力的共同作用使B粉的粗、细颗粒分布不均匀。

关键词 无机非金属材料 热电池 阳极材料 Li--B合金, 强度    
Abstract

The effects of experiment conditions on tensile strength and the inner uniformity of Li–B alloy ingot were investigated by using mechanical strength method. The results show that specimen orientation, test temperature and specimen thickness have remarkable influence to test results. The maximum diversity of strength is up to 36%, and texture of LiB compound fiber in the rolled alloy has significant effect to strength. The average strength of Li–B alloy is about 24.5 MPa at 21oC. For a ingot, strength in the center is higher than that on the edge, and that on the bottom is more than that on the top, but the density on the edge is beyond that in the center, and that on the bottom is more than that on the top too. The reason is the uneven distribution of coarse particle and fine particle of boron powder because of the influence of gravity and centrifugal force in the preparation process of Li–B alloy.

Key wordsinorganic non–metallic materials     thermal battery    anode material    Li–B alloy    strength
收稿日期: 2009-07-13     
基金资助:

国家自然科学基金50172062资助项目。

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