| Al2O3对氮化硅陶瓷致密度的影响 |
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| 引用本文： | 江涌,吴澜尔,康必文. Al2O3对氮化硅陶瓷致密度的影响[J]. 山东陶瓷, 2008, 31(6) |
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| 作者姓名： | 江涌 吴澜尔 康必文 |
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| 作者单位： | 北方民族大学材料科学与工程学院,银川,750021;北方民族大学材料科学与工程学院,银川,750021;北方民族大学材料科学与工程学院,银川,750021 |
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| 基金项目： | 宁夏自然科学基金资助 ， 粉体材料与特种陶瓷重点实验室(省部共建)资助 |
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| 摘 要： | 用自蔓延高温燃烧合成氮化硅粉料,采用Y203-Al2O3-AlN液相烧结体系,通过改变Al2O3的含量考察了Al2O3成分对烧结体及素坯致密度的影响.测试了烧结体收缩率、烧失率.并对比了两种不同粒度氮化硅原料的烧结情况.结果表明,烧结体密度随着Al2O3的加入和含量的增多而降低,素坯密度在Al2O3含量小于7%时基本保持不变,当增加至7%质量分数后也趋于下降.含量达到10%以后,样品的烧失率和收缩率急剧增高.粒度小的粉料烧结体密度高.
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| 关 键 词： | 氮化硅 烧结助剂 Al2O3 烧结密度 粒度 |
Influence of Sintering Aids Al_2O_3 on Densification of Si_3N_4 Ceramics |
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| JIANG yong,WU lan-er,KANG bi-wen. Influence of Sintering Aids Al_2O_3 on Densification of Si_3N_4 Ceramics[J]. Shandong Ceramics, 2008, 31(6) |
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| Authors: | JIANG yong WU lan-er KANG bi-wen |
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| Affiliation: | JIANG yong,WU lan-er,KANG bi-wen(School of MSE,The north University for nationalities,Yinchuan 750021) |
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| Abstract: | Self-propagating high temperature combustion synthesized silicon nitride were sintered with Y2O3-Al2O3-AlN as sintering additive.The densities of the green and sintered body changed with different contents of Al2O3.Shrinkage rate and weight lost of the bodies during the sintering were measured.Comparison of sintering results of two powders with different grain size were carried out.The results show that sintered densities decrease with Al2O3 contents increase.The green densities keep even at the region of A... |
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| Keywords: | Al2O3 |
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