| MgO─CeO2烧结助剂对常压烧结氮化硅陶瓷致密化和性能的影响 |
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| 引用本文： | 徐润泽,黄培云,杨海涛. MgO─CeO2烧结助剂对常压烧结氮化硅陶瓷致密化和性能的影响[J]. 中国有色金属学报, 1996, 0(3) |
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| 作者姓名： | 徐润泽 黄培云 杨海涛 |
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| 作者单位： | 武汉工业大学新材料研究所，中南工业大学粉冶所 |
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| 摘 要： | 系统研究了ＭｇＯＣｅＯ２烧结助剂对常压烧结氮化硅陶瓷致密化过程及其性能的影响，发现ＭｇＯＣｅＯ２是一种非常有效的烧结助剂，其致密化效果比单独用ＭｇＯ或ＣｅＯ２要好得多，常压烧结的Ｓｉ３Ｎ４ＭｇＯＣｅＯ２陶瓷，相对密度为９８．５％，室温强度可达９４８ＭＰａ。
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| 关 键 词： | Si3N4 烧结 致密化 |
ROLE OF MgO CeO 2 SINTERING AID IN DENSIFICATION OF Si 3N 4 |
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| Yang Haitao New Materials Research Institute,Wuhan University of Technology,Wuhan Xu Runze,Huang Peiyun Powder Metallurgy Research Institute,Central South University of Technology,Changsha. ROLE OF MgO CeO 2 SINTERING AID IN DENSIFICATION OF Si 3N 4[J]. The Chinese Journal of Nonferrous Metals, 1996, 0(3) |
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| Authors: | Yang Haitao New Materials Research Institute Wuhan University of Technology Wuhan Xu Runze Huang Peiyun Powder Metallurgy Research Institute Central South University of Technology Changsha |
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| Affiliation: | Yang Haitao New Materials Research Institute,Wuhan University of Technology,Wuhan 430070 Xu Runze,Huang Peiyun Powder Metallurgy Research Institute,Central South University of Technology,Changsha 410083 |
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| Abstract: | An investigation of the pressureless sintering of Si 3N 4 with MgO CeO 2 revealed that MgO CeO 2 is a much more effective sintering aid for silicon nitride than either MgO or CeO 2. The amount of MgO CeO 2 and MgO/CeO 2 mass ratio have strong influence on the densification behaviour and mechanical properties of the sintered materials. The silicon nitride pressurelessly sintered with MgO CeO 2 retains a relative density of 98.5% and a bending strength of 948 MPa. |
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| Keywords: | Si 3N 4 sintering densification |
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