Deng Xia, Cen Yuankun, Chen Yongping
Key Lab. for Oral Biomedical Engineering Ministry of Education, West China College of Stomatology, Sichuan University, Chengdu 610041, China.
Hua Xi Kou Qiang Yi Xue Za Zhi. 2003 Jun;21(3):241-2.
To study the characteristics of thermal expansion of the alumina-zirconia nano-composite infiltrated ceramic.
The thermal expansion coefficients of alumina-zirconia composite matrix, infiltrating glass and infiltrated ceramic were determined by various methods, respectively.
The coefficients of thermal expansion of composite matrix with 10 wt%, 20 wt% and 30 wt% zirconia were 7.607, 7.690 and 8.111 microns/(m. degree C) respectively. The thermal expansion coefficients of AZ-8 and AZ-10 infiltration glass were 6.867 and 7.333 microns/(m. degree C), respectively. The thermal expansion coefficient of infiltrated ceramic was 8.413 microns/(m. degree C).
The thermal expansion coefficients of the glass and composite matrix matched well. The thermal expansion coefficients of the alumina-zirconia nano-composite infiltrated ceramic and several common veneering porcelains matched well, too.
研究氧化铝 - 氧化锆纳米复合渗透陶瓷的热膨胀特性。
分别采用多种方法测定氧化铝 - 氧化锆复合基体、渗透玻璃和渗透陶瓷的热膨胀系数。
含10 wt%、20 wt%和30 wt%氧化锆的复合基体的热膨胀系数分别为7.607、7.690和8.111微米/（米·摄氏度）。AZ - 8和AZ - 10渗透玻璃的热膨胀系数分别为6.867和7.333微米/（米·摄氏度）。渗透陶瓷的热膨胀系数为8.413微米/（米·摄氏度）。
玻璃与复合基体的热膨胀系数匹配良好。氧化铝 - 氧化锆纳米复合渗透陶瓷与几种常见饰面瓷的热膨胀系数也匹配良好。
