Pechini法制备Y2 O3的煅烧温度对无压烧结AlON陶瓷透光性的影响
TQ174.1; 首先以Y(NO3)3·6H2O为Y源,采用Pechini法制备前驱体,然后通过煅烧制得纳米Y2O3粉体,再将其作为烧结助剂,在1 880℃保温2.5 h无压烧结制备AlON透明陶瓷,研究前驱体煅烧温度对产物组成、形貌、粒度,以及所制备AlON陶瓷透光性的影响规律.结果表明,提高前驱体煅烧温度会促进有机物分解,但也会造成Y2O3颗粒长大,有机物残留和过大粒度的Y2O3粉体都不利于获得高致密度的高透光性AlON陶瓷.900 ℃煅烧2 h所得纳米Y2O3粉体适合作为快速无压烧结制备AlON透明陶瓷的烧结助剂,所制备的AlON陶瓷在波长～3 750 nm的透过率达83.4％....
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| Published in | 人工晶体学报 Vol. 53; no. 11; pp. 2004 - 2012 |
|---|---|
| Main Authors | , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
大连海事大学材料系,大连 116026%中国科学院理化技术研究所,北京 100080
15.11.2024
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-985X |
| DOI | 10.3969/j.issn.1000-985X.2024.11.020 |
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| Abstract | TQ174.1; 首先以Y(NO3)3·6H2O为Y源,采用Pechini法制备前驱体,然后通过煅烧制得纳米Y2O3粉体,再将其作为烧结助剂,在1 880℃保温2.5 h无压烧结制备AlON透明陶瓷,研究前驱体煅烧温度对产物组成、形貌、粒度,以及所制备AlON陶瓷透光性的影响规律.结果表明,提高前驱体煅烧温度会促进有机物分解,但也会造成Y2O3颗粒长大,有机物残留和过大粒度的Y2O3粉体都不利于获得高致密度的高透光性AlON陶瓷.900 ℃煅烧2 h所得纳米Y2O3粉体适合作为快速无压烧结制备AlON透明陶瓷的烧结助剂,所制备的AlON陶瓷在波长～3 750 nm的透过率达83.4％. |
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| AbstractList | TQ174.1; 首先以Y(NO3)3·6H2O为Y源,采用Pechini法制备前驱体,然后通过煅烧制得纳米Y2O3粉体,再将其作为烧结助剂,在1 880℃保温2.5 h无压烧结制备AlON透明陶瓷,研究前驱体煅烧温度对产物组成、形貌、粒度,以及所制备AlON陶瓷透光性的影响规律.结果表明,提高前驱体煅烧温度会促进有机物分解,但也会造成Y2O3颗粒长大,有机物残留和过大粒度的Y2O3粉体都不利于获得高致密度的高透光性AlON陶瓷.900 ℃煅烧2 h所得纳米Y2O3粉体适合作为快速无压烧结制备AlON透明陶瓷的烧结助剂,所制备的AlON陶瓷在波长～3 750 nm的透过率达83.4％. |
| Abstract_FL | Using Y(NO3)3·6H2O as yttrium source,nano-sized Y2O3 powder was obtained by calcining the precursor prepared by Pechini method.This Y2O3 powder was then used as a sintering additive to fabricate transparent AlON ceramics via pressureless sintering at 1 880 ℃ for 2.5 h.The effects of precursor calcination temperature on the composition,morphology and particle size of Y2O3 powder,as well as on the transparency of AlON ceramics were thoroughly studied.The results indicate that increasing calcination temperature of the precursor can promote the decomposition of organic compounds,but it also leads to the growth of Y2O3 particles.Residual organic compounds and excessive growth of Y2O3 powders are unfavorable for fabrication of AlON ceramics with high transmittance and high relative density.The nano-sized Y2 O3 powder prepared by calcining the precursor at 900 ℃ for 2 h is favorable for the fabrication of highly transparent AlON ceramics via rapid pressureless sintering.The infrared transmittance of the obtained AlON ceramics reaches up to 83.4％at～3 750 nm. |
| Author | 单英春 闫晖 李江涛 徐久军 郭浩然 高铭泽 |
| AuthorAffiliation | 大连海事大学材料系,大连 116026%中国科学院理化技术研究所,北京 100080 |
| AuthorAffiliation_xml | – name: 大连海事大学材料系,大连 116026%中国科学院理化技术研究所,北京 100080 |
| Author_FL | GAO Mingze YAN Hui SHAN Yingchun GUO Haoran LI Jiangtao XU Jiujun |
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| Author_xml | – sequence: 1 fullname: 郭浩然 – sequence: 2 fullname: 闫晖 – sequence: 3 fullname: 单英春 – sequence: 4 fullname: 高铭泽 – sequence: 5 fullname: 徐久军 – sequence: 6 fullname: 李江涛 |
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| DOI | 10.3969/j.issn.1000-985X.2024.11.020 |
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| DocumentTitle_FL | Effects of Calcining Temperature in the Preparation of Y2O3 by Pechini Method on the Transparency of Pressureless Sintered AlON Ceramics |
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| Issue | 11 |
| Keywords | 无压烧结 Y2O3 sintering additive Pechini法 AlON transparent ceramics Pechini method pressureless sintering 烧结助剂 透明陶瓷 |
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| Snippet | TQ174.1; 首先以Y(NO3)3·6H2O为Y源,采用Pechini法制备前驱体,然后通过煅烧制得纳米Y2O3粉体,再将其作为烧结助剂,在1 880℃保温2.5... |
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| Title | Pechini法制备Y2 O3的煅烧温度对无压烧结AlON陶瓷透光性的影响 |
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