RESEARCH INTO SINTERING AND RELATED PHENOMENA: PERSONAL EXPERIENCE

被引:7
作者
Andrievskii, R. A. [1 ]
机构
[1] Russian Acad Sci, Inst Problem Chem Phys, Chernogolovka 142432, Moscow Region, Russia
关键词
sintering; shrinkage; plastic deformation; diffusion creep; superplasticity; diffusion-controlled processes; effective diffusion coefficient; neck growth; carbides; nitrides; nanoparticles; ELECTRON-MICROSCOPY; MOLECULAR-DYNAMICS; NANOPARTICLES; PARTICLES; POWDERS; DIFFUSION; SHRINKAGE; STEEL;
D O I
10.1007/s11106-011-9298-9
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The studies on deformation and diffusion processes during sintering are analyzed. Attention is paid to the effect of compressive and tensile stresses on shrinkage of silver, copper, and nickel powders. Superplastic deformation and displacement of particles as a whole are observed during shrinkage. Self-diffusion in transition metal carbides as well as their creep and neck growth during sintering are widely studied. The theory of effective diffusion coefficient is developed to be applied to diffusion-controlled processes in interstitial phases. The proposed relationships are shown to be applicable to creep and neck growth during sintering. Areas of further nanoscale studies are discussed.
引用
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页码:2 / 17
页数:16
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