Effects of deagglomeration and zirconia wear debris on sintering behavior of α-alumina powder

Chia Hung Kuo; Chih Jen Wang; Hsuan Min Lee; Chi-Yuen Huang; Chii-Shyang Hwang

doi:10.1111/j.1744-7402.2009.02396.x

Effects of deagglomeration and zirconia wear debris on sintering behavior of α-alumina powder

Chia Hung Kuo, Chih Jen Wang, Hsuan Min Lee, Chi-Yuen Huang, Chii-Shyang Hwang

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Abstract

This work investigates sintering behaviors of α-alumina powder that were treated by attrition milling with zirconia media. While zirconia wear debris delays initial sintering shrinkage and increases the temperature to reach the maximum shrinkage rate, the agglomerates also influence the final sintering. The final density of the sintered bulk is limited because of the existence of pores among agglomerates. Zirconia wear debris effectively inhibits the grain growth of alumina during the sintering. Varying the degree of deagglomeration and the amounts of zirconia wear debris together can control the microstructure during the final stage of the sintering.

Original language	English
Pages (from-to)	856-867
Number of pages	12
Journal	International Journal of Applied Ceramic Technology
Volume	7
Issue number	6
DOIs	https://doi.org/10.1111/j.1744-7402.2009.02396.x
Publication status	Published - 2010 Nov 1

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All Science Journal Classification (ASJC) codes

Ceramics and Composites
Condensed Matter Physics
Marketing
Materials Chemistry

Cite this

Kuo, C. H., Wang, C. J., Lee, H. M., Huang, C-Y., & Hwang, C-S. (2010). Effects of deagglomeration and zirconia wear debris on sintering behavior of α-alumina powder. International Journal of Applied Ceramic Technology, 7(6), 856-867. https://doi.org/10.1111/j.1744-7402.2009.02396.x

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10.1111/j.1744-7402.2009.02396.x