Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

您目前所在的位置:首页 - 期刊简介 - 详细页面

中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第7卷    第3期    总第24期    1997年9月

[PDF全文下载]        

    

文章编号:(1998)03-148-3
SiCP/Al复合材料的孔隙度测定
郭蔚    桑吉梅    张少明    石力开

(北京有色金属研究总院, 北京 100088)

摘 要: 通过对理论计算、腐蚀称重、碳含量测定等方法的比较,研究了SiCP/Al复合材料孔隙度的测定方法。结果表明,采用理论计算法来表征复合材料的孔隙度很不准确,腐蚀称重法虽然精确但比较繁琐,碳含量测定存在较大的误差。提出了一种新的方法----车屑法, 并用此方法研究了复合材料搅拌时间和孔隙度的关系,表明孔隙度随搅拌时间的上升而增加。

 

关键字: SiCP/Al复合材料    孔隙度    密度

MEASUREMENT OF POROSITY IN SiCP/Al COMPOSITES
Guo Wei, Sang Jimei, Zhang Shaoming, Shi Likai

General Research Institute for Nonferrous Metals, Beijing 100088

Abstract:The porosity of SiCP/Al MMCs was quantitatively investigated by means of theoretic calculation, chemical dissolution and carbon content measuring methods. It was found that theoretic calculation method will bring errors in some cases, chemical dissolution method is the most accurate but overelaborate, carbon content measuring method also brings about big errors; thus the cuttings method, whose essential lies in fact of that the specimen was cut into small cuttings of porous-free and then measured its density after degreasing and drying, was established and used to study the relationship of porosity with stirring time in stirring casting process. The results indicate that the porosity increases with the increase of stirring time, and the cuttings method can be used to measure the porosity of SiCP/Al MMCs in stead the traditional methods.

 

Key words: SiCP/Al MMCs    porosity    density

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

主管:中国科学技术协会 主办:中国有色金属学会 承办:中南大学
湘ICP备09001153号 版权所有:《中国有色金属学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市岳麓山中南大学内 邮编:410083
电 话:0731-88876765,88877197,88830410   传真:0731-88877197   电子邮箱:f_ysxb@163.com