| 离子交换强韧化效应对CAD/CAM二硅酸锂玻璃陶瓷机械性能的影响 |
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| 引用本文： | 李珂奕,张少锋,蒙萌,李小成,周明,门天剑,贺林,邓再喜.离子交换强韧化效应对CAD/CAM二硅酸锂玻璃陶瓷机械性能的影响[J].实用口腔医学杂志,2021(2):186-191. |
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| 作者姓名： | 李珂奕 张少锋 蒙萌 李小成 周明 门天剑 贺林 邓再喜 |
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| 作者单位： | 军事口腔医学国家重点实验室;西安交通大学材料学院 |
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| 基金项目： | 国家自然科学基金(编号:81671018,81870792);陕西省自然科学基金(编号:2017ZDJC04)。 |
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| 摘 要： | 目的:探究锂-钠离子交换强韧化效应对CAD/CAM二硅酸锂玻璃陶瓷机械性能的影响.方法:制作50个CAD/CAM二硅酸锂玻璃陶瓷圆片状试件,晶化、打磨及抛光后,用4种不同的熔融硝酸钠离子交换工艺进行处理(n=10),分别检测离子交换前后样品的双轴弯曲强度、维氏硬度和断裂韧性.设置未交换组为空白对照.结果:CAD/CAM...
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| 关 键 词： | 离子交换 CAD/CAM二硅酸锂玻璃陶瓷 机械性能 |
The strengthening and toughening effects of ion exchange on the mechanical properties of CAD/CAM lithium disilicate glass ceramics |
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| LI Keyi,ZHANG Shaofeng,MENG Meng,LI Xiaocheng,ZHOU Ming,MEN Tianjian,HE Lin,DENG Zaixi.The strengthening and toughening effects of ion exchange on the mechanical properties of CAD/CAM lithium disilicate glass ceramics[J].Journal of Practical Stomatology,2021(2):186-191. |
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| Authors: | LI Keyi ZHANG Shaofeng MENG Meng LI Xiaocheng ZHOU Ming MEN Tianjian HE Lin DENG Zaixi |
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| Institution: | (State Key Laboratory of Military Stomatology,National Clinical Research Center for Oral Diseases,Shaanxi Key Laboratory of Stomatology,Department of Prosthodontics,School of Stomatology,the Fourth Military Medical University,Xi'an710032 China;State Key Laboratory for Mechanical Behavior of Materials,Xi'an Jiaotong University) |
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| Abstract: | Objective:To investigate the effects of lithium-sodium ion exchange on the mechanical properties of CAD/CAM lithium disilicate glass ceramics.Methods:50 CAD/CAM lithium disilicate glass ceramic circular plate specimens were made,grinded,polished and treated with 4 different molten sodium nitrate ion exchange processes(n=10).The biaxial flexural strength,Vickers hardness and fracture toughness of the samples before and after ion exchange were respectively detected.Results:The mechanical properties of CAD/CAM lithium disilicate glass ceramics were significantly improved after the various ion exchange processes,the strengthening and toughening effects were the best in the group of 385℃/32 h.Conclusion:The mechanical properties of CAD/CAM lithium disilicate glass ceramics can be significantly improved by ion exchange treatment at low temperature for a long time. |
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| Keywords: | Ion exchange CAD/CAM lithium disilicate glass ceramics Mechanical properties |
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