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Sintering method of dental zirconia presintered body
The present invention addresses the problem of requiring a technique for improving light transmittance for producing a zirconia sintered body having high light transmittance without using special equipment. The present invention is a method for sintering a dental zirconia pre-sintered body, which is characterized by satisfying the following conditions a) to c): a) the average temperature rise rate in the range from room temperature to 1300 DEG C is arbitrary; b) the average temperature rise rate in the 1300-1400 DEG C zone is 3 DEG C/min or less; and c) the average temperature rise rate in the interval from 1400 DEG C to the highest temperature of the sintering process is 2.5 DEG C/min or less.
本发明的课题在于，需要一种用于在不使用特殊设备的情况下制造具有高透光性的氧化锆烧结体的提高透光性的技术。本发明是一种牙科用氧化锆预烧体的烧结方法，其特征在于，满足以下a)～c)：a)室温～1300℃区间的平均升温速度为任意；b)1300℃～1400℃区间的平均升温速度为3℃/min以下；c)1400℃～本烧结工艺最高温度的区间的平均升温速度为2.5℃/min以下。
Sintering method of dental zirconia presintered body
The present invention addresses the problem of requiring a technique for improving light transmittance for producing a zirconia sintered body having high light transmittance without using special equipment. The present invention is a method for sintering a dental zirconia pre-sintered body, which is characterized by satisfying the following conditions a) to c): a) the average temperature rise rate in the range from room temperature to 1300 DEG C is arbitrary; b) the average temperature rise rate in the 1300-1400 DEG C zone is 3 DEG C/min or less; and c) the average temperature rise rate in the interval from 1400 DEG C to the highest temperature of the sintering process is 2.5 DEG C/min or less.
本发明的课题在于，需要一种用于在不使用特殊设备的情况下制造具有高透光性的氧化锆烧结体的提高透光性的技术。本发明是一种牙科用氧化锆预烧体的烧结方法，其特征在于，满足以下a)～c)：a)室温～1300℃区间的平均升温速度为任意；b)1300℃～1400℃区间的平均升温速度为3℃/min以下；c)1400℃～本烧结工艺最高温度的区间的平均升温速度为2.5℃/min以下。
Sintering method of dental zirconia presintered body
牙科用氧化锆预烧体的烧结方法
NONAKA KAZUMICHI (author) / TAKAHASHI SHUHEI (author)
2022-12-16
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Dental alumina presintered body for forming highly translucent alumina sintered body
| European Patent Office | 2024