| 反应析晶烧结法制备可加工氟闪石玻璃陶瓷致密化研究 |
| |
| 引用本文： | 章为夷,高宏,张力明.反应析晶烧结法制备可加工氟闪石玻璃陶瓷致密化研究[J].硅酸盐通报,2009,28(5):1088-1092. |
| |
| 作者姓名： | 章为夷 高宏 张力明 |
| |
| 作者单位： | 大连交通大学辽宁省无机超细粉体制备及应用重点实验室,大连,116028 |
| |
| 基金项目： | 辽宁省教育厅重点实验室项目 |
| |
| 摘 要： | 采用两种加热方式对氟云母晶体和普通钠钙玻璃混合粉末进行烧结,用扫描电镜观察烧结过程中玻璃陶瓷的组织演变,结合样品收缩率和密度的变化,研究了玻璃陶瓷的致密化行为.研究结果表明,致密化是通过玻璃的粘性流动实现的,氟云母加入对玻璃粘性流动有阻碍,降低了烧结驱动力.加热至850 ℃,氟云母与玻璃发生反应析晶形成氟闪石,对致密化影响很大.反应析晶发生前,玻璃陶瓷的密度随温度升高和等温时间延长而提高;反应析晶发生后,逐渐形成密集的相互交织的氟闪石晶体骨架对玻璃粘性流动产生严重阻碍,玻璃陶瓷的密度随温度升高略有下降.
|
| 关 键 词： | 反应析晶 烧结 致密化 氟云母 氟闪石 |
Densification of Machinable Fluoramphibole Glass-ceramics Prepared by Reactive Crystallization-sintering |
| |
| ZHANG Wei-yi,GAO Hong,ZHANG Li-ming.Densification of Machinable Fluoramphibole Glass-ceramics Prepared by Reactive Crystallization-sintering[J].Bulletin of the Chinese Ceramic Society,2009,28(5):1088-1092. |
| |
| Authors: | ZHANG Wei-yi GAO Hong ZHANG Li-ming |
| |
| Affiliation: | ZHANG Wei-yi,GAO Hong,ZHANG Li-ming(Liaoning Key Laboratory for Fabrication and Application of Super-fine Inorganic Powders,Dalian Jiaotong University,Dalian 116028,China) |
| |
| Abstract: | The sintering of powder compacts of fluormica and soda-lime glass was performed by two types of heating schedules.The densification behaviors of the glass-ceramics were studied by means of the observation of their microstructural evolution using scanning electron microscopy and the measurement of the changes in the shrinkage and density of the compacts during sintering.The results show that the densification of glass-ceramics is achieved by the viscous flow of glassy phase,the fluormica addition inhibites t... |
| |
| Keywords: | reactive crystallization sintering densification fluormica fluoramphibole |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《硅酸盐通报》浏览原始摘要信息 |
|
点击此处可从《硅酸盐通报》下载全文 |
|
