| 烧结助剂LY含量对气压烧结Si3N4陶瓷性能的影响 |
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| 引用本文： | 李凤梅 孙宏荣. 烧结助剂LY含量对气压烧结Si3N4陶瓷性能的影响[J]. 材料工程, 1995, 0(2): 24-26 |
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| 作者姓名： | 李凤梅 孙宏荣 |
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| 作者单位： | 北京航空航天大学 |
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| 摘 要： | 本研究采用二步气压烧结工艺，系统地研究了烧结助剂ＬＹ（Ｌａ２Ｏ３＋Ｙ２Ｏ３）对Ｓｉ３Ｎ４陶瓷的烧结密度及抗弯强度的影响，发现相对密度随助剂含量的增加而增加。在助剂含量为１８ｗｔ％时，抗弯强度最大为４２２ＭＰａ。此后，助剂含量继续增加时，抗弯强度下降。
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| 关 键 词： | 氮化硅 二步气压烧结 烧结助剂 陶瓷 |
The Enects of the Content of Sintered Aids LY(La_2O_3+Y_2O_3)on the GPS Si_3N_4 Properties |
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| Li Fengmei, Sun Hongrong. The Enects of the Content of Sintered Aids LY(La_2O_3+Y_2O_3)on the GPS Si_3N_4 Properties[J]. Journal of Materials Engineering, 1995, 0(2): 24-26 |
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| Authors: | Li Fengmei Sun Hongrong |
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| Affiliation: | Beijing University of Aeronautics and Astronautics |
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| Abstract: | or two-step GPS Si_3N_4 ceramics,the effects of the additional content of sintered aids LY( La_2 O_3+ Y_2O_3)on the sintered relative density and the mechanical properties were studied systematically. The re-sults revealed that the sintered relative density increased with the incrcasing of the amount of the aids.It was founded that the best bending strength was 422 MPa when aids was 18 wt%. Then,with the increas-ing of aids,the bending strength began to decrease remarkably. |
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| Keywords: | Si_3N_4 two-step GPS sintering aids LY |
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