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骨灰煅烧改性对骨质瓷性能的影响
Authors
严星煌
戴瑾
李锦堂
罗学涛
Publication date
15 July 2009
Publisher
Abstract
骨灰是烧制骨质瓷的最重要的原料,提高骨灰的质量也是提高骨质瓷性能的关键.对骨胶厂提供的骨灰进行煅烧处理,通过红外、热分析、X射线衍射和扫描电镜等表征手段系统地研究了煅烧温度对骨灰的显微形貌和结构变化的影响规律,以及骨灰煅烧改性对坯体浆料流动性和坯体烧结工艺的影响规律.实验结果表明,在1 200℃下对骨灰进行煅烧,可获得轮廓清晰、圆球形和颗粒尺寸适中的煅烧骨灰,有利于提高骨质瓷坯体浆料的流动性,扩大坯体烧结温度范围,并且能提高坯体的白度.通过合理配方和工艺优化,骨质瓷坯体烧结后白度为92.97%,密度为2.70 g/cm3,收缩率为16.83%
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Last time updated on 16/06/2016