| MgTiO3对Mg2SiO4-SiC复相材料烧结性能的影响 |
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| 引用本文： | 周萍,李晓云,丘泰,杨建.MgTiO3对Mg2SiO4-SiC复相材料烧结性能的影响[J].人工晶体学报,2012,41(2):371-375. |
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| 作者姓名： | 周萍 李晓云 丘泰 杨建 |
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| 作者单位： | 南京工业大学材料科学与工程学院,南京,210009 |
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| 基金项目： | 国防科工委基金资助项目 |
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| 摘 要： | 在采用传统固相法预合成Mg2SiO4和MgTiO3粉体的基础上,在H2气氛下常压烧结制备了Mg2SiO4-MgTiO3-SiC复相材料。研究了Mg2SiO4和MgTiO3的最佳原料配比及MgTiO3的添加量、烧结温度、保温时间对复相材料烧结性能和相组成的影响。结果表明:Mg2SiO4粉的最佳Mg/Si物质的量比为2.02,MgTiO3粉的最佳Mg/Ti物质的量比为1,Mg2SiO4-MgTiO3-SiC复相材料的相组成为Mg2SiO4、MgTiO3和6H-SiC;MgTiO3的加入可促进材料烧结,最佳保温时间为1 h。
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| 关 键 词： | MgTiO3 Mg2SiO4-SiC 常压烧结 |
Effect of MgTiO3 on Sintering Properties of Mg2SiO4-SiC Composites |
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| ZHOU Ping
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LI Xiao-yun
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QIU Tai
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YANG Jian.Effect of MgTiO3 on Sintering Properties of Mg2SiO4-SiC Composites[J].Journal of Synthetic Crystals,2012,41(2):371-375. |
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| Authors: | ZHOU Ping LI Xiao-yun QIU Tai YANG Jian |
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| Institution: | (College of Materials Science and Engineering,Nanjing University of Technology,Nanjing 210009,China) |
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| Abstract: | Basing on pre-synthetic Mg2SiO4 and MgTiO3 powders by conventional solid-state reaction method,the Mg2SiO4-MgTiO3-SiC composites were prepared in hydrogen atmosphere with pressureless sintering.The effects of ratio of Mg2SiO4 and MgTiO3,the addition of MgTiO3,sintering temperature,holding time on the composites sintering properties and phase composition were investigated.The results showed that the optimal mole ratio of Mg/Si in Mg2SiO4 is 2.02,the optimal mole ratio of Mg/Ti is 1,the phase composition of Mg2SiO4-MgTiO3-SiC composites is Mg2SiO4,MgTiO3 and 6H-SiC.The addition of MgTiO3 can promote the sintering,and the optimal holding time is 1 h. |
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| Keywords: | MgTiO3 Mg2SiO4-SiC pressureless sintering |
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