Development of Joint Material for Alumina and Zirconia Ceramics

氧化铝、氧化锆陶瓷接合材料的开发

• 批准号: 21791909
• 负责人: ODATSU Tetsurou
• 金额: $ 2.75万
• 依托单位: Nagasaki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21791909/
• 关键词: 冠橋義歯補綴学; オールセラミック; 歯学; アルミナ; ジルコニア; 連結材; オールセラミックス

This study was to develop the methods of jointing ceramic core materials made from alumina and zirconia. The jointing strength of composite ceramic made from alumina and zirconia was increased as high as joint-free control group, using the jointing material supplemented a trace amount of magnesium oxide. At the Scanning Electron Microscope observation, a number of micro-pores and the pore size was decreased in magnesium oxide supplemented group. But in terms of partially stabilized zirconia ceramic, agglomerated particles were formed and zirconia grains were not dispersed, in spite of changing the additive amount of magnesium oxide, pH conditions and sintering schedules. As a result, micro pores were formed in the structure and jointing strength became a significantly lower.

本研究旨在探索氧化铝和氧化锆基陶瓷芯材的连接方法。加入微量氧化镁后，氧化铝和氧化锆复相陶瓷的连接强度提高到无连接对照组的水平。扫描电子显微镜观察，添加氧化镁组微孔数量减少，孔径变小。但对于部分稳定的氧化锆瓷，尽管改变了氧化镁的加入量、pH条件和烧成制度，但都形成了团聚的颗粒，没有分散的氧化锆颗粒。结果是，结构中形成了微气孔，接头强度明显降低。