学术
粉末冶金烧结工艺中加热方式对烧结过程的影响
林芸[1,2] 柴东朗[2] 张文兴[2]
[1]贵阳学院,贵州贵阳550005 [2]西安交通大学材料科学与工程学院,陕西西安710049
摘 要:
利用高温光学金相显微镜对由纯铝、纯镁制成的铝基二元合金试样进行烧结试验的原位观察,比较了恒温加热与波动加热两种方式对烧结过程的影响.结果显示：普通电阻加热形成的波动温度场对烧结具有热振荡活化效应,能加速烧结过程的进行.这一结果为进一步合理制定和优化烧结工艺提供了直接的试验依据.[著者文摘]
文章出处:
《贵州科学》-2007年25卷B05期 -33-37页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1003-6563（2007）增刊-0033-05
THE EFFECT OF HEATING METHOD TO SINTERING PROCESS OF PURE METAL POWDERS
LIN Yun, CHAI Dong - lang, ZHANG Wen - xing（ 1. Guiyang College, Guiyang 550005 ; 2. College of Material Science and Technology, Xi＇ an Communication University, Xi＇ an 710049）
Abstract:
In order to study the influences of heating method on sintering, a high temperature optical microscope was employed to in - situ observe on the sintering process of Al - Mg binary aluminum alloy systems. A periodically changing temperature field and constant temperature field are compared. The resuks showed that periodically changing temperature field which formed of resistance heating method has ＂heat shock activated effect＂, it can accelerate sintering process. This result would provide direct experience basis to establish properly and optimize sintering procedure.[著者文摘]
Key words:
powder metallurgy; sintering, heating method; in - suit observation
基金资助:
科技部重大基础研究前期研究专项（02061005）;国家自然科学基金资助项目（59771016）;贵阳学院科研资助项目（200606）.
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