A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SINTERED BODY, POWDER, AND METHOD FOR PRODUCING SAME
Provided are at least any one of a raw material for obtaining a zirconia sintered body which is obtained by pressureless sintering and has a high fracture toughness value measured by the SEPB method, a sintered body obtained by the raw material, and a method for producing the same. The sintered body is characterized by comprising zirconia which contains a stabilizer and having a monoclinic ratio of 0.5% or more. Such a sintered body is preferably obtained by a production method which is characterized by using a powder characterized by comprising a stabilizer and containing zirconia having a monoclinic ratio of over 70%, and in that the monoclinic zirconia has a crystallite diameter of over 23 nm and 80 nm or less.
本发明提供一种用于通过常压烧结得到通过SEPB法测定的破坏韧性值高的氧化锆烧结体的原料、由该原料得到的烧结体、及其制造方法中的至少任一者。所述烧结体的特征在于，包含含有稳定化剂的氧化锆，单斜晶率为0.5％以上。这样的烧结体优选通过具有以下特征的制造方法而得到：使用以包含含有稳定化剂且单斜晶率大于70％的氧化锆、且单斜晶氧化锆的晶粒粒径为大于23nm且80nm以下为特征的粉末。
SINTERED BODY, POWDER, AND METHOD FOR PRODUCING SAME
Provided are at least any one of a raw material for obtaining a zirconia sintered body which is obtained by pressureless sintering and has a high fracture toughness value measured by the SEPB method, a sintered body obtained by the raw material, and a method for producing the same. The sintered body is characterized by comprising zirconia which contains a stabilizer and having a monoclinic ratio of 0.5% or more. Such a sintered body is preferably obtained by a production method which is characterized by using a powder characterized by comprising a stabilizer and containing zirconia having a monoclinic ratio of over 70%, and in that the monoclinic zirconia has a crystallite diameter of over 23 nm and 80 nm or less.
本发明提供一种用于通过常压烧结得到通过SEPB法测定的破坏韧性值高的氧化锆烧结体的原料、由该原料得到的烧结体、及其制造方法中的至少任一者。所述烧结体的特征在于，包含含有稳定化剂的氧化锆，单斜晶率为0.5％以上。这样的烧结体优选通过具有以下特征的制造方法而得到：使用以包含含有稳定化剂且单斜晶率大于70％的氧化锆、且单斜晶氧化锆的晶粒粒径为大于23nm且80nm以下为特征的粉末。
SINTERED BODY, POWDER, AND METHOD FOR PRODUCING SAME
烧结体、粉末及其制造方法
MATSUI KOJI (author) / HOSOI KOHEI (author)
2021-11-30
Patent
Electronic Resource
Chinese
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