A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ZIRCONIA MOLDED ARTICLE CAPABLE OF BEING FIRED QUICKLY AND CALCINATED BODY
The present invention provides a zirconia sintered body that excels in both translucency and strength, excels in linear light transmittance, and can be produced by short-time sintering with no use of an HIP device, and a zirconia molded body and a zirconia pre-sintered body from which such a zirconia sintered body can be obtained. The present invention relates to a zirconia molded body comprising zirconia particles comprising 2.0 to 9.0 mol% yttria, having an average primary particle diameter of less than 60 nm, and comprising a monoclinic crystal system in a fraction of 55% or more, wherein the zirconia molded body comprises 1% or more undissolved yttria. The present invention also relates to a zirconia pre-sintered body comprising: zirconia particles comprising 2.0 to 9.0 mol% yttria and comprising a monoclinic crystal system in a fraction of 55% or more; and 1% or more undissolved yttria, wherein the zirconia pre-sintered body has ΔL*(W - B) of 5 or more through a thickness of 1.5 mm. The present invention further relates to a zirconia sintered body comprising: a fluorescent agent; and 2.0 to 9.0 mol% yttria, wherein the zirconia sintered body has a crystal grain size of 180 nm or less.
ZIRCONIA MOLDED ARTICLE CAPABLE OF BEING FIRED QUICKLY AND CALCINATED BODY
The present invention provides a zirconia sintered body that excels in both translucency and strength, excels in linear light transmittance, and can be produced by short-time sintering with no use of an HIP device, and a zirconia molded body and a zirconia pre-sintered body from which such a zirconia sintered body can be obtained. The present invention relates to a zirconia molded body comprising zirconia particles comprising 2.0 to 9.0 mol% yttria, having an average primary particle diameter of less than 60 nm, and comprising a monoclinic crystal system in a fraction of 55% or more, wherein the zirconia molded body comprises 1% or more undissolved yttria. The present invention also relates to a zirconia pre-sintered body comprising: zirconia particles comprising 2.0 to 9.0 mol% yttria and comprising a monoclinic crystal system in a fraction of 55% or more; and 1% or more undissolved yttria, wherein the zirconia pre-sintered body has ΔL*(W - B) of 5 or more through a thickness of 1.5 mm. The present invention further relates to a zirconia sintered body comprising: a fluorescent agent; and 2.0 to 9.0 mol% yttria, wherein the zirconia sintered body has a crystal grain size of 180 nm or less.
ZIRCONIA MOLDED ARTICLE CAPABLE OF BEING FIRED QUICKLY AND CALCINATED BODY
ZUR SCHNELLEN BEFEUERUNG FÄHIGER ZIRKONIUMOXIDFORMKÖRPER UND KALZINIERTER KÖRPER
CORPS MOULÉ EN ZIRCONE PERMETTANT UNE CUISSON DE COURTE DURÉE, ET CORPS CALCINÉ
KUDO YASUTAKA (author) / ITO YOSHIHISA (author)
2022-11-30
Patent
Electronic Resource
English
ZIRCONIA MOLDED ARTICLE CAPABLE OF BEING FIRED QUICKLY AND CALCINATED BODY
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