Low-temperature synthesis and sintering of gamma-Y2Si2O7
文献类型：期刊论文
| 作者 | Z. Q. Sun ; Y. C. Zhou ; M. S. Li |
| 刊名 | Journal of Materials Research
 |
| 出版日期 | 2006 |
| 卷号 | 21期号:6页码:1443-1450 |
| 关键词 | yttrium disilicate powder pressed silicon-nitride gel method behavior crystallization microstructure densification stability evolution ceramics |
| ISSN号 | 0884-2914 |
| 中文摘要 | In this article, a novel pressureless solid-liquid reaction method is presented for preparation of yttrium disilicate (gamma-Y2Si2O7). Single-phase gamma-Y2Si2O7 powder was synthesized by calcination of SiO2 and Y2O3 powders with the addition of LiYO2 at 1400 degrees C for 4 h. The addition of LiYO2 significantly decreased the synthesis temperature, shortened the calcination time, and enhanced the stability of gamma-Y2Si2O7. The sintering of these powders in air and O-2 was studied by means of thermal mechanical analyzer. It is shown that the gamma-Y2Si2O7 sintered in oxygen had a faster densification rate and a higher density than that sintered in air. Furthermore, single-phase gamma-Y2Si2O7 with a density of 4.0 g/cm(3) (99% of the theoretical density) was obtained by pressureless sintering at 1400 degrees C for 2 h in oxygen. Microstructures of the sintered samples are studied by scanning electron microscope. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34479]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Z. Q. Sun,Y. C. Zhou,M. S. Li. Low-temperature synthesis and sintering of gamma-Y2Si2O7[J]. Journal of Materials Research,2006,21(6):1443-1450. |
| APA | Z. Q. Sun,Y. C. Zhou,&M. S. Li.(2006).Low-temperature synthesis and sintering of gamma-Y2Si2O7.Journal of Materials Research,21(6),1443-1450. |
| MLA | Z. Q. Sun,et al."Low-temperature synthesis and sintering of gamma-Y2Si2O7".Journal of Materials Research 21.6(2006):1443-1450. |
入库方式： OAI收割
来源：金属研究所
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