| 氧化铝基复合陶瓷物理和力学性能的研究 |
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| 引用本文： | 宋京红,杨海涛.氧化铝基复合陶瓷物理和力学性能的研究[J].稀有金属快报,2008,27(4):27-30. |
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| 作者姓名： | 宋京红 杨海涛 |
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| 作者单位： | 1. 武汉理工大学,湖北,武汉,430070
2. 深圳大学,广东,深圳,518060 |
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| 摘 要： | 采用热压烧结致密化工艺，在1550，1600，1650℃3个不同的烧结温度下，烧结制备了Si3N4含量从O．25w％到6w％的A1203／Si，N。纳米复相陶瓷。对所制备的试样进行了密度、硬度、断裂韧性的测试。实验结果表明，所有试样达到了较高的致密度，且致密度随烧结温度的升高而增加。硬度在Si3N。含量为0．75w％和3w％时达到峰值。韧性在Si3N4含量3w％达到峰值。材料的性能较纯A120，陶瓷有较大幅度提高。
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| 关 键 词： | 复相陶瓷 氧化铝 氮化硅 热压烧结 |
| 文章编号： | 1008-5939(2008)04-027-04 |
| 修稿时间： | 2008年3月17日 |
Research on Physical and Mechanical Properties of Alumina-Matrix Nanocomposite Ceramic |
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| Song Jinghong,Yang Haitao.Research on Physical and Mechanical Properties of Alumina-Matrix Nanocomposite Ceramic[J].Rare Metals Letters,2008,27(4):27-30. |
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| Authors: | Song Jinghong Yang Haitao |
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| Affiliation: | Song Jinghong, Yang Haitao (1. Wuhan University of Technology, Wuhan 430070, China) (2. Shenzhen University, Shenzhen 518060, China) |
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| Abstract: | At 1 550 ℃, 1 600 ℃ and 1 650 ℃, AI2O3/Si3N4 nanocomposite with Si3N4 contents from 0.25w% to 6w% was fabricated by hot-pressing. The sample＇s density, hardness, toughness have been tested. The results showed that a high density of all sample was achieved and increased with temperature. When the content of Si3N4 was 0.75w% and 3w%, the hardness was the highest while toughness was the highest when the content of SigN4 was 3w%. The composite has been showed to exhibit significant enhanced mechanical properties compared with monolithic matrix material. |
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| Keywords: | composite AI2O3/Si3N4 hot-pressing |
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