| 多晶YAG陶瓷的制备及力学性能 |
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| 引用本文： | 王宏志,高濂,Tohru Sekino,Koichi Niihara.多晶YAG陶瓷的制备及力学性能[J].硅酸盐学报,2001,29(1):35-38. |
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| 作者姓名： | 王宏志 高濂 Tohru Sekino Koichi Niihara |
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| 作者单位： | 1. 中国科学院上海硅酸盐研究所高性能陶瓷和
2. The Institute of Scientific and Industrial Research, Osaka University, Osaka 567-0047, Japan |
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| 摘 要： | 本实验采用共沉淀方法制备YAG微粉 ,Al和Y元素分布均匀 ,在 90 0℃煅烧 2h即可全部转变为YAG粉体 ,无过渡相 .15 0 0℃热压 1h可获得致密烧结体 ,其抗弯强度为 2 45MPa ,断裂韧性为 2 .0MPa·m1 /2 ,晶粒大小为 3～ 6μm ;14 0 0℃放电等离子烧结 5min可获得相对密度为 93 %的烧结体 ,其抗弯强度为 3 4 8MPa,断裂韧性为 2 .1MPa·m1 /2 ,晶粒大小为 1～ 2 μm .
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| 关 键 词： | 钇铝石榴石陶瓷 放电等离子烧结 粉体制备 力学性能 |
PREPARATION AND MECHANICAL PROPERTIES OF POLYCRYSTALLINE YTTRIUM ALUMINUM GARNET |
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| Wang Hongzhi,Gao Lian,Hirokazu Kawaoka,Tohru Sekino,Koichi Niihara.PREPARATION AND MECHANICAL PROPERTIES OF POLYCRYSTALLINE YTTRIUM ALUMINUM GARNET[J].Journal of The Chinese Ceramic Society,2001,29(1):35-38. |
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| Authors: | Wang Hongzhi Gao Lian Hirokazu Kawaoka Tohru Sekino Koichi Niihara |
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| Abstract: | YAG powder was prepared by co_precipitation method, and Al and Y elements were uniformly distributed in powder. After calcination at 900 ℃ for 2 h, pure YAG phases can be obtained. The powder has good sintering ability, and dense bodies could be obtained by hot_pressing at 1 500 ℃ for 1 h. Its bending strength and fracture toughness are 245 MPa and 2.0 MPa*m1/2， respectively. Through SEM observation, the grain size is about 3—6 μm. Spark plasma sintering was also employed to produce sintering body, 93% relative density could be obtained at 1 400 ℃ 5 min. Its bending strength is 348 MPa, and fracture toughness is 2.1 MPa*m1/2. Its grain size is about 1—2 μm. |
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| Keywords: | yttrium aluminum garnet spark plasma sintering preparation mechanical properties |
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