| CeO2对牙科云母玻璃陶瓷微观结构和性能的影响 |
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| 引用本文： | 孙 翔,陈吉华,李光新,马新沛,金志浩. CeO2对牙科云母玻璃陶瓷微观结构和性能的影响[J]. 稀有金属材料与工程, 2009, 38(5): 862-865 |
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| 作者姓名： | 孙 翔 陈吉华 李光新 马新沛 金志浩 |
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| 作者单位： | 1. 第四军医大学,陕西,西安,710032
2. 西安交通大学,金属材料强度国家重点实验室,陕西,西安,710049 |
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| 摘 要： | 针对添加大剂量氧化物是否会对云母玻璃陶瓷的性能产生不利影响的这一关键性问题,运用DTA、XRD、SEM和机械性能测试等方法研究了添加不同的CeO2(作为着色剂),对氟金云母玻璃陶瓷微观结构、力学性能和可切削性能的影响.结果表明:添加2%～5%(质量分数, 下同)CeO2后,牙科氟金云母玻璃陶晶体主晶相无明显改变,晶体直径明显变大.随着CeO2含量的增加,三点弯曲强度先增加后降低,切削性能逐渐改善.在氟金云母玻璃陶瓷中添加3%以下的CeO2对材料的力学性能的提高有促进作用; 添加量过高时, 虽切削性能有所提高, 但强度和耐磨性却下降.
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| 关 键 词： | 氧化铈 玻璃陶瓷 氟金云母 微观结构 力学性能 |
| 收稿时间： | 2008-05-20 |
Effect of CeO2 Addition on the Property of Dental Mica Based Glass-Ceramic |
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| Sun Xiang,Chen Jihu,Li Guangxin,Ma Xinpei and Jin Zhihao. Effect of CeO2 Addition on the Property of Dental Mica Based Glass-Ceramic[J]. Rare Metal Materials and Engineering, 2009, 38(5): 862-865 |
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| Authors: | Sun Xiang Chen Jihu Li Guangxin Ma Xinpei Jin Zhihao |
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| Abstract: | To evaluate the effect of CeO2 on the microstructure and property of SiO2-Al2O3-MgO-Na2O-K2O-F system, 2wt%, 3wt%, 4wt%, 5wt% CeO2 were added respectively. Crystallization behaviors, crystalline phases, microstructures of the glass-ceramics with various compositions were investigated by differential thermal analysis (DTA), X-ray diffraction (XRD) and scanning electron micro scope (SEM) analysis. Three-point bending strength, micro hardness, machinability and wear abrationlosing weight were also measured. Th... |
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| Keywords: | glass-ceramics CeO2 fluorphlogopite microstructure bending strength |
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