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2016 Vol.26, Issue 2 Preview Page
Effect of Y2O3 and La2O3 on the Sintering Behavior of Alumina

Y2O3 및 La2O3 첨가가 알루미나의 소결거동에 미치는 영향

Keun Bong Lee12
,
Jong Bong Kang3†
이 근봉12
,
강 종봉3†
1Department of Advanced Engineering, Kyungnam University, Masan 51767, Korea
2Ceramic Nano Technology(Cenotec), Korea
3Department of Engineering, Kyungnam University, Masan 51767, Korea
1경남대학교 대학원 첨단공학과
2(주) 쎄노텍
3경남대학교 나노 신소재학과
†Corresponding author jbkmat@kyungnam.ac.kr (J. B. Kang, Kyungnam Univ.)
February 2016. pp. 90-94
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Abstract

In this study, to increase the strength and enhance the sintering property of Al2O3, Y2O3 and La2O3 were added; the effects of these additions on the sintering characteristics of Al2O3 were observed. Adding 1% of Y2O3 to Al2O3 repressed the development of abnormal particles and reduced the grain boundary migration of Al2O3, curbing pores to capture particles; as such, the material showed a fine microstructure. But, when over 2% of Y2O3 was added, the sintering property was reduced because of abnormal particle grain growth and pore formation in particles. Adding 1% of Y2O3 and La2O3 to Al2O3 led to the development of abnormal particles and formed pores in the particles; when over 3% of La2O3 was added, the sintering property was reduced because the shape of the Al2O3 particles changed to angled plates.

Keywords
Al2O3
Y2O3
La2O3
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Information
  • Publisher :Materials Research Society of Korea
  • Publisher(Ko) :한국재료학회
  • Journal Title :Korean Journal of Materials Research
  • Journal Title(Ko) :한국재료학회지
  • Volume : 26
  • No :2
  • Pages :90-94
  • Received Date : 2015-12-31
  • Revised Date : 2016-01-11
  • Accepted Date : 2016-01-11
  • DOI :https://doi.org/10.3740/MRSK.2016.26.2.90
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