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Microstructure and mechanical properties of yttrium aluminum garnet porous ceramics prepared by different sintering process parameters

Journal of Ceramic Processing Research
약어 : J. Ceram. Process. Res.
2019 vol.20, no.4, pp.436 - 441
DOI : 10.36410/jcpr.2019.20.4.436
발행기관 : 한양대학교 청정에너지연구소
연구분야 : 재료공학
Copyright © 한양대학교 청정에너지연구소
Yue Liu 1 ,  Xueqing Yang 2 ,  Kangliang Peng 3 ,  Qiong Wang 4 ,  Jianzhen Huang 5 ,  Zilin Zhang 6 ,  Jiang Lu 7 ,  Hao Xu 8 ,  Jieguang Song 9 ,  Lin Chen 10

1Pingxiang University

2Pingxiang University

3Pingxiang University

4Pingxiang University

5Pingxiang University

6Pingxiang University

7Pingxiang University

8Pingxiang University

9Pingxiang University

10Pingxiang University

43 회 열람

Yttrium aluminum garnet (YAG), which possesses excellent properties, is investigated and applied. The sintering technology of YAG porous ceramics is optimized. Results show that the porosity initially increases and then decreases with an increase of increasing temperature rate, the porosity are decreased with an increase of removing carbon temperature, the porosity are decreased with an increase of sintering temperature, the porosity are decreased with an increase of holding time. Meanwhile, the compressive strength constantly exhibits an opposite tendency. The optimization of the sintering technology of YAG porous ceramics is based on porosity and compressive strength. A good sintering technology are an increasing temperature rate of 8 oC/min, a removing carbon temperature of 800 oC, removing carbon time of 1 h, a sintering temperature of 1450 oC and holding time of 2 h. The porosity of the prepared YAG porous ceramics is 57.4%, and the compressive strength is 8.89 MPa.

YAG porous ceramics, sintering technology, porosity, compressive strength

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