What We Should Consider for Full Densification when Sintering

被引：22
|
作者：
Kang, Suk-Joong L. [1 ]
机构：
[1] Korea Adv Inst Sci & Technol KAIST, Dept Mat Sci & Engn, Daejeon 34141, South Korea
来源：
MATERIALS | 2020年 / 13卷 / 16期
关键词：
densification; entrapped gases; pore entrapment; grain growth; grain boundary; microstructural evolution; fast firing; two-step sintering; spark plasma sintering; flash sintering; ABNORMAL GRAIN-GROWTH; CERAMICS; BATIO3; DENSE; SIZE; TEMPERATURE; FABRICATION; PRINCIPLE;
D O I：
10.3390/ma13163578
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
To fully densify a powder compact, we should avoid two things: (i) entrapment of insoluble gases within pores and (ii) entrapment of isolated pores within grains. This paper describes general directions for promoting full densification in view of the above two points. Emphasis is placed on ways to potentially prevent pore entrapment in terms of grain growth control. Currently available techniques that can enhance densification while suppressing grain growth are briefly described, and their major mechanisms are discussed.
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页数：9
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