Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Zirconium oxide blank and dental prosthesis
The invention relates to the field of dental ceramic materials, and provides a zirconium oxide green body and a dental prosthesis. The zirconium oxide green body is prepared by molding and sintering granulated zirconium oxide powder with the average particle size of 10-100 microns and the powder monoclinic phase content of 6-12%; wherein the forming pressure is not lower than 180 MPa, and the sintering temperature is 1050-1300 DEG C. The low-activity and low-porosity zirconia green body is obtained by controlling the raw materials and regulating and controlling the forming pressure and the sintering temperature, and the green body can solve the problem of light color caused by insufficient rapid sintering heat, so that sintering can be carried out by adopting a top-speed sintering mode, the color of a sintered ceramic block is close to that of a conventional sintered ceramic block, and the color difference is Elt; 1, the transparency is superior to that of conventional sintering, the processing hardness of a green body is consistent with that of conventional sintering, and the method has the advantages of small deformation and good adaptation for a multi-unit restoration body;
本发明涉及牙科陶瓷材料领域，提供一种氧化锆坯体和牙科修复体。所述氧化锆坯体由平均粒度为10‑100μm、粉体单斜相含量为6‑12％的造粒氧化锆粉体经成型后烧结制得；其中，成型压力不低于180MPa，烧结温度为1050‑1300℃。本发明通过原料控制以及成型压力及烧结温度的调控，得到了低活性低气孔率的氧化锆坯体，这种坯体可以弥补快速烧结热量不足引起的颜色偏浅问题，故可采用极速烧结方式进行烧结，烧结后的瓷块颜色与常规烧结接近，色差△E<1，透度优于常规烧结，坯体加工硬度与常规烧结一致，并且对于多单位修复体具有变形小，密合性好的优势。
Zirconium oxide blank and dental prosthesis
The invention relates to the field of dental ceramic materials, and provides a zirconium oxide green body and a dental prosthesis. The zirconium oxide green body is prepared by molding and sintering granulated zirconium oxide powder with the average particle size of 10-100 microns and the powder monoclinic phase content of 6-12%; wherein the forming pressure is not lower than 180 MPa, and the sintering temperature is 1050-1300 DEG C. The low-activity and low-porosity zirconia green body is obtained by controlling the raw materials and regulating and controlling the forming pressure and the sintering temperature, and the green body can solve the problem of light color caused by insufficient rapid sintering heat, so that sintering can be carried out by adopting a top-speed sintering mode, the color of a sintered ceramic block is close to that of a conventional sintered ceramic block, and the color difference is Elt; 1, the transparency is superior to that of conventional sintering, the processing hardness of a green body is consistent with that of conventional sintering, and the method has the advantages of small deformation and good adaptation for a multi-unit restoration body;
本发明涉及牙科陶瓷材料领域，提供一种氧化锆坯体和牙科修复体。所述氧化锆坯体由平均粒度为10‑100μm、粉体单斜相含量为6‑12％的造粒氧化锆粉体经成型后烧结制得；其中，成型压力不低于180MPa，烧结温度为1050‑1300℃。本发明通过原料控制以及成型压力及烧结温度的调控，得到了低活性低气孔率的氧化锆坯体，这种坯体可以弥补快速烧结热量不足引起的颜色偏浅问题，故可采用极速烧结方式进行烧结，烧结后的瓷块颜色与常规烧结接近，色差△E<1，透度优于常规烧结，坯体加工硬度与常规烧结一致，并且对于多单位修复体具有变形小，密合性好的优势。
Zirconium oxide blank and dental prosthesis
一种氧化锆坯体和牙科修复体
HAN CHENGWEI (Autor:in) / SHI FENG (Autor:in) / ZHOU YANGZHI (Autor:in) / XIA WANTING (Autor:in) / LIU YING (Autor:in)
29.11.2022
Patent
Elektronische Ressource
Chinesisch
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