Effect of characteristics of submicrometer powder on the sintering behaviors of Al2O3 ceramic

Qingbo Tian, Jinshan Dai, Zhijie Lv, Tongguang Zhai

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


The sintering behaviors of high purity Al2O3 ceramics prepared from a submicron-scale powder were investigated. The effects of ball milling on the evolution of alumina powders’ compressibility, sinterability, grain growth and microstructure during sintering process were studied. It was observed that the relative density of the Al2O3 ceramics increased with increasing compaction pressure on the green compacts and the sintering temperature. However, the applied pressure had less influence on the relative density of ceramics sintered from green compact with narrower size distribution and finer powder. The fast grain growth of the Al2O3 ceramics occurred in different temperature ranges and was influenced by milling time and forming methods. The effect of milling on the microstructural evolution of alumina during sintering was also discussed.

Original languageEnglish
Pages (from-to)676-680
Number of pages5
JournalJournal of Ceramic Processing Research
Issue number7
StatePublished - 2016

Bibliographical note

Funding Information:
This work was financial supported by National Natural Science Foundation of China (No: 51375281).

Publisher Copyright:
© 2016, Hanyang University. All rights reserved.


  • High purity alumina
  • Microstructure
  • Sintering
  • Submicrometer powder

ASJC Scopus subject areas

  • Ceramics and Composites


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