Effect of Additive Sm2O3 on Synthesizing AlN Ceramics at High Pressure

Gui Hong Zuo; You Jin Zheng; Qiang Zhu; Yan Feng Liu; Chun Lei Wu; Li Ping Zhao; Si Nian Fu; Yan Ping Ma

doi:10.4028/www.scientific.net/AMR.616-618.1860

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Effect of Additive Sm₂O₃ on Synthesizing AlN Ceramics at High Pressure
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Effect of Additive Sm₂O₃ on Synthesizing AlN Ceramics at High Pressure

Abstract:

In this paper, AlN ceramics doped with additive Sm₂O₃ has been synthesized by HPHT method. Furthermore, we have studied the impact of Sm2O3 on sintering AlN ceramic. The results show that the relative density of AlN ceramics increased at first, but decreased later with increasing Sm₂O₃. Compared with pressureless sintering, the time required to complete sintering AlN ceramic was shorter, and the sintering temperature was lower. And the growth model of AlN ceramics was pointed out and the proper explanation of its related phenomena were given in detail.