The effect of oxidation on the mechanical properties and dielectric properties of porous Si3N4 ceramics
文献类型：期刊论文
| 作者 | Liang, Hanqin; Zeng, Yuping; Zuo, Kaihui; Xia, Xiongfeng; Yao, Dongxu; Yin, Jinwei |
| 刊名 | CERAMICS INTERNATIONAL
 |
| 出版日期 | 2017-05-01 |
| 卷号 | 43期号:7页码:5517-5523 |
| 关键词 | Si3N4 Oxidation Mechanical properties Dielectric constant Microstructure |
| 英文摘要 | The effect of oxidation temperature and time on the microstructures, phase compositions, mechanical properties, and dielectric properties of porous Si3N4 ceramics was investigated in the temperature range from 900 degrees C to 1300 degrees C for 1 h, 5 h, and 24 h. The weight gain measured either at lower temperature (900 degrees C) for long time (24 h) or at higher temperature (1300 degrees C) for 1 h demonstrated that the porous Si3N4 ceramics were easily oxidized under the current test conditions. Results showed that the amount of open pores, flexural strength, compressive strength, and dielectric constant all decreased with the increase of oxidation temperature independent upon the oxidation time. The oxidation product SiO2 was low-temperature quartz in mild condition (low temperature, short time) and cristobalite in severe condition (high temperature, long time). The existence of cracks on the oxide scale was due to the phase transformation of SiO2 and thermal expansion coefficient mismatch between SiO2 and Si3N4. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Materials Science, Ceramics |
| 研究领域[WOS] | Materials Science |
| 关键词[WOS] | VAPOR-DEPOSITED SI3N4 ; HOT-PRESSED SI3N4 ; SILICON-NITRIDE ; SINTERED ALUMINA ; BEHAVIOR ; MICROSTRUCTURE ; STRENGTH ; POROSITY ; 1200-DEGREES-C ; 1500-DEGREES-C |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000397075900022 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/23708]  |
| 专题 | 上海硅酸盐研究所_结构陶瓷与复合材料工程研究中心_期刊论文 |
| 作者单位 | Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang, Hanqin,Zeng, Yuping,Zuo, Kaihui,et al. The effect of oxidation on the mechanical properties and dielectric properties of porous Si3N4 ceramics[J]. CERAMICS INTERNATIONAL,2017,43(7):5517-5523. |
| APA | Liang, Hanqin,Zeng, Yuping,Zuo, Kaihui,Xia, Xiongfeng,Yao, Dongxu,&Yin, Jinwei.(2017).The effect of oxidation on the mechanical properties and dielectric properties of porous Si3N4 ceramics.CERAMICS INTERNATIONAL,43(7),5517-5523. |
| MLA | Liang, Hanqin,et al."The effect of oxidation on the mechanical properties and dielectric properties of porous Si3N4 ceramics".CERAMICS INTERNATIONAL 43.7(2017):5517-5523. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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