| 可切削的氧化锆陶瓷牙科修复体的制备 |
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| 引用本文： | 荣天君,赵云凤,王士维,张玉峰,黄校先,郭景坤.可切削的氧化锆陶瓷牙科修复体的制备[J].无机材料学报,2003,18(2):348-352. |
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| 作者姓名： | 荣天君 赵云凤 王士维 张玉峰 黄校先 郭景坤 |
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| 作者单位： | 1. 中国科学院上海硅酸盐研究所, 上海 200050; 2. 四川大学口腔医学院成都 610041 |
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| 基金项目： | 国家973项目(G2000067200-2) |
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| 摘 要： | 通过控制CaO_2-Al_2O_3-SiO_2硅酸盐玻璃粉体,在1300℃低温下液相烧结获得热膨胀系数在7.19×10 -6/℃和8.15×10-6/℃范围内,与修复体饰瓷相近,其强度在340～360MPa,韧性在2.7～3.5 MPa·mI/2,可切削性与In-Ceram相当的氧化锆陶瓷牙科修复体.
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| 关 键 词： | 氧化锆陶瓷 牙科修复体 可切削 制备 |
| 文章编号： | 1000-324X(2003)02-0348-05 |
| 收稿时间： | 2002-2-8 |
| 修稿时间： | 2002年2月8日 |
Preparation of Machinable Zirconia Ceramics as a Dental Prosthetic Material |
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| RONG Tian-Jun,ZHAO Yun-Feng,WANG Shi-Wei,ZHANG Yu-Feng,HUNAG Xiao-Xian,GUO Jing-Kun.Preparation of Machinable Zirconia Ceramics as a Dental Prosthetic Material[J].Journal of Inorganic Materials,2003,18(2):348-352. |
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| Authors: | RONG Tian-Jun ZHAO Yun-Feng WANG Shi-Wei ZHANG Yu-Feng HUNAG Xiao-Xian GUO Jing-Kun |
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| Affiliation: | 1.Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China; 2.Stomatological college; Sichuan University; Chengdu 610041; China |
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| Abstract: | The zirconia ceramic as a dental prosthetic material was prepared by liquid-phase sintering with CaO2-Al2O3 -SiO2 glass as the sintering aid. And the bending strength, fracture toughness, thermal expansion and machinable property of the sintered bodies were valued. The results obtained show that (1) CaO2-Al2O3-SiO2 glass is effective to lower the sintering temperature of zirconia ceramic to 1300℃; (2) the machinability of the dental prosthetic zirconia ceramic is comparable to that of In-Ceram; (3) its thermal expansion coefficient is 8.15～ 7.19×10-6/℃, bending strength is 360～340MPa and fracture toughness is 3.5～2.7MPa·m1/2. |
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| Keywords: | zirconia ceramics machinable dental prosthetic material preparation |
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