Effects of rare earth oxide additives on the thermal behaviors of aluminum nitride ceramics
来源期刊：Rare Metals2009年第6期
论文作者：YAO Yijuna, WANG Linga, LI Chunchenga, JIANG Xiaolonga, and QIU Taib a School of Mathematics and Physics, Nanjing University of Information and Science Technology, Nanjing , China b College of Materials Science and Engineering, Nanjing University of Technology, Nanjing , China
文章页码：596 - 599
摘 要：The effects of Y2O3 and Er2O3 on the sintering behaviors, thermal properties and microstructure of AlN ceramics were investigated. The experimental results show that the sintering temperature can be decreased; the relative density and thermal behavior can be improved by adding rare earth oxide in AlN ceramics. For AlN ceramics with 3 wt.% Er2O3 additive, the relative density is 98.8%, and the thermal conductivity reaches 106 W·m-1·K-1. The microstructure research found that no obvious aluminum erbium oxide was found in AlN ceramics doped with 3 wt.% Er2O3, which favored the improvement of the thermal conductivity of AlN ceramics.
YAO Yijuna, WANG Linga, LI Chunchenga, JIANG Xiaolonga, and QIU Taib a School of Mathematics and Physics, Nanjing University of Information and Science Technology, Nanjing 210044, China b College of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, China
摘 要：The effects of Y2O3 and Er2O3 on the sintering behaviors, thermal properties and microstructure of AlN ceramics were investigated. The experimental results show that the sintering temperature can be decreased; the relative density and thermal behavior can be improved by adding rare earth oxide in AlN ceramics. For AlN ceramics with 3 wt.% Er2O3 additive, the relative density is 98.8%, and the thermal conductivity reaches 106 W·m-1·K-1. The microstructure research found that no obvious aluminum erbium oxide was found in AlN ceramics doped with 3 wt.% Er2O3, which favored the improvement of the thermal conductivity of AlN ceramics.
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