Y2O3 및 La2O3 첨가가 알루미나의 소결거동에 미치는 영향

이근봉; 강종봉; Keun Bong Lee; Jong Bong Kang

Korean Journal of Materials Research, Vol.26, No.2, 90-94, February, 2016

DOI10.3740/MRSK.2016.26.2.90 Export Citation

Y2O3 및 La2O3 첨가가 알루미나의 소결거동에 미치는 영향

Effect of Y2O3 and La2O3 on the Sintering Behavior of Alumina

이근봉^{1, 2}, 강종봉 ^{3, †}

¹경남대학교 대학원 첨단공학과
²(주) 쎄노텍
³경남대학교 나노 신소재학과

Keun Bong Lee^{1, 2}, and Jong Bong Kang^{3, †}

¹Department of Advanced Engineering, Kyungnam University, Masan 51767, Korea
²Ceramic Nano Technology(Cenotec), Korea
³Department of Engineering, Kyungnam University, Masan 51767, Korea

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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

[References]

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Ikegami T, Kotani K, Eguchi K, J. Am. Ceram. Soc., 70, 885 (1987)
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Riu DH, Kong YM, Kim HE, J. European Ceram. Soc., 20, 1475 (2000)
Yu MW, Lee SJ, Korean J. Met. Mater., 52, 451 (2014)

[Related Articles]

[1] Cahoon HP, Christensen CJ, J. Am. Ceram. Soc., 39, 337 (1956)

[2] Ikegami T, Kotani K, Eguchi K, J. Am. Ceram. Soc., 70, 885 (1987)

[3] Kim HS, Trans. Korean Soc. Mech. Eng. A, 31, 425 (2007)

[4] Lee JW, Yoon HS, Chae US, Park HJ, Hwang UY, Park HS, Park DR, Yoo SJ, Korean Chem. Eng. Res., 43(4), 503 (2005)

[5] Qiao L, Zhou H, Xue H, Wang S, J. European Ceram. Soc., 23, 61 (2003)

[6] Coble RL, J. Appl. Phys., 32, 793 (1961)

[7] Bettman M, Chase RE, Otto K, Weber WH, J. Catal., 117, 447 (1989)

[8] Schaper H, Doesburg EBM, Van Reijen LL, Appl. Catal., 7, 211 (1983)

[9] Celikkaya A, Anderson TJ, U. S. Patent, 7, 258 (2007).

[10] Riu DH, Kong YM, Kim HE, J. European Ceram. Soc., 20, 1475 (2000)

[11] Yu MW, Lee SJ, Korean J. Met. Mater., 52, 451 (2014)