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Method for producing workable zirconia composite sintered body, starting material composition for workable zirconia composite sintered body, and workable zirconia composite pre-sintered body
Provided is a method for producing a workable zirconia composite sintered body in a shorter time than conventional methods, said workable zirconia composite sintered body maintaining characteristics suitable for dental use and being capable of being mechanically worked in a sintered state. The present invention relates to a method for producing a workable zirconia composite sintered body, which comprises a step for producing a molded body using a raw material composition that contains 78-95 mol% of ZrO2, 2.5-10 mol% of Y2O3, 2-8 mol% of Nb2O5 and/or 3-10 mol% of Ta2O5, and in which the main crystal system of ZrO2 is a monoclinic system, and a step for sintering the molded body.
本发明提供与以往的方法相比在短时间内制作加工性氧化锆复合烧结体的方法，所述加工性氧化锆复合烧结体保持适合于牙科用途的特性，能够在烧结状态下进行机械加工。本发明涉及加工性氧化锆复合烧结体的制造方法，其包括使用原料组合物来制作成形体的工序和对前述成形体进行烧结的工序，所述原料组合物包含78~95mol%的ZrO2、2.5~10mol%的Y2O3，且包含2~8mol%的Nb2O5和/或3~10mol%的Ta2O5，并且，ZrO2的主要晶系为单斜晶系。
Method for producing workable zirconia composite sintered body, starting material composition for workable zirconia composite sintered body, and workable zirconia composite pre-sintered body
Provided is a method for producing a workable zirconia composite sintered body in a shorter time than conventional methods, said workable zirconia composite sintered body maintaining characteristics suitable for dental use and being capable of being mechanically worked in a sintered state. The present invention relates to a method for producing a workable zirconia composite sintered body, which comprises a step for producing a molded body using a raw material composition that contains 78-95 mol% of ZrO2, 2.5-10 mol% of Y2O3, 2-8 mol% of Nb2O5 and/or 3-10 mol% of Ta2O5, and in which the main crystal system of ZrO2 is a monoclinic system, and a step for sintering the molded body.
本发明提供与以往的方法相比在短时间内制作加工性氧化锆复合烧结体的方法，所述加工性氧化锆复合烧结体保持适合于牙科用途的特性，能够在烧结状态下进行机械加工。本发明涉及加工性氧化锆复合烧结体的制造方法，其包括使用原料组合物来制作成形体的工序和对前述成形体进行烧结的工序，所述原料组合物包含78~95mol%的ZrO2、2.5~10mol%的Y2O3，且包含2~8mol%的Nb2O5和/或3~10mol%的Ta2O5，并且，ZrO2的主要晶系为单斜晶系。
Method for producing workable zirconia composite sintered body, starting material composition for workable zirconia composite sintered body, and workable zirconia composite pre-sintered body
加工性氧化锆复合烧结体的制造方法、加工性氧化锆复合烧结体的原料组合物和加工性氧化锆复合预烧体
KATO SHINICHIRO (author) / ITO YOSHIHISA (author) / NIWA TAKAHIRO (author)
2022-07-29
Patent
Electronic Resource
Chinese
ZIRCONIA POWDER, METHOD OF PRODUCING ZIRCONIA SINTERED BODY, AND ZIRCONIA SINTERED BODY
| European Patent Office | 2022
ZIRCONIA POWDER, ZIRCONIA SINTERED BODY, AND METHOD FOR PRODUCING ZIRCONIA SINTERED BODY
| European Patent Office | 2022