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Preparation method of low-temperature-aging-resistant zirconium oxide porcelain block
The invention relates to a preparation method of a low-temperature-aging-resistant zirconia ceramic block, and relates to the field of ceramic materials for dental prostheses. The low-temperature-aging-resistant zirconium oxide ceramic block is prepared by the following steps: performing compression molding on zirconium oxide powder in a mold, performing cold isostatic pressing to obtain a zirconium oxide ceramic block primary blank, putting the zirconium oxide ceramic block primary blank into a sintering furnace, and performing pressureless sintering in an air atmosphere to obtain the low-temperature-aging-resistant zirconium oxide ceramic block. Under the condition, when the molar percentage of yttrium oxide in the zirconium oxide powder is 2.5-3.5%, and the molar percentage of holmium oxide in the zirconium oxide powder is 0.06-0.25%, the zirconium oxide ceramic material has very excellent low-temperature aging resistance and mechanical properties, and is suitable for the field of various medical repair ceramic materials; moreover, the sintering procedure of the low-temperature-aging-resistant zirconium oxide ceramic block adopts pressureless sintering and is carried out in an air atmosphere, the zirconium oxide ceramic block with good low-temperature-aging-resistant performance can be obtained without using a special atmosphere, and the cost of the whole process is reduced.
本申请关于一种抗低温老化氧化锆瓷块的制备方法，涉及齿科修复体用陶瓷材料领域。本申请中的抗低温老化氧化锆瓷块是由氧化锆粉体先在模具中压制成型，再进行冷等静压得到氧化锆瓷块初坯，将氧化锆瓷块初坯放入烧结炉中，在空气气氛下进行无压烧结后，即得到该抗低温老化的氧化锆瓷块。在此情况下，当氧化钇在氧化锆粉体中的摩尔百分数为2.5‑3.5％、以及氧化钬在氧化锆粉体中的摩尔百分数为0.06‑0.25％时，具有着非常优秀的抗低温老化性能和力学性能，适用于各种医用修复陶瓷材料领域；并且，该抗低温老化氧化锆瓷块的烧结工序使用无压烧结，并在空气气氛下进行，无需用到特殊气氛便可得到抗低温老化性能好的氧化锆瓷块，整体工艺的成本降低。
Preparation method of low-temperature-aging-resistant zirconium oxide porcelain block
The invention relates to a preparation method of a low-temperature-aging-resistant zirconia ceramic block, and relates to the field of ceramic materials for dental prostheses. The low-temperature-aging-resistant zirconium oxide ceramic block is prepared by the following steps: performing compression molding on zirconium oxide powder in a mold, performing cold isostatic pressing to obtain a zirconium oxide ceramic block primary blank, putting the zirconium oxide ceramic block primary blank into a sintering furnace, and performing pressureless sintering in an air atmosphere to obtain the low-temperature-aging-resistant zirconium oxide ceramic block. Under the condition, when the molar percentage of yttrium oxide in the zirconium oxide powder is 2.5-3.5%, and the molar percentage of holmium oxide in the zirconium oxide powder is 0.06-0.25%, the zirconium oxide ceramic material has very excellent low-temperature aging resistance and mechanical properties, and is suitable for the field of various medical repair ceramic materials; moreover, the sintering procedure of the low-temperature-aging-resistant zirconium oxide ceramic block adopts pressureless sintering and is carried out in an air atmosphere, the zirconium oxide ceramic block with good low-temperature-aging-resistant performance can be obtained without using a special atmosphere, and the cost of the whole process is reduced.
本申请关于一种抗低温老化氧化锆瓷块的制备方法，涉及齿科修复体用陶瓷材料领域。本申请中的抗低温老化氧化锆瓷块是由氧化锆粉体先在模具中压制成型，再进行冷等静压得到氧化锆瓷块初坯，将氧化锆瓷块初坯放入烧结炉中，在空气气氛下进行无压烧结后，即得到该抗低温老化的氧化锆瓷块。在此情况下，当氧化钇在氧化锆粉体中的摩尔百分数为2.5‑3.5％、以及氧化钬在氧化锆粉体中的摩尔百分数为0.06‑0.25％时，具有着非常优秀的抗低温老化性能和力学性能，适用于各种医用修复陶瓷材料领域；并且，该抗低温老化氧化锆瓷块的烧结工序使用无压烧结，并在空气气氛下进行，无需用到特殊气氛便可得到抗低温老化性能好的氧化锆瓷块，整体工艺的成本降低。
Preparation method of low-temperature-aging-resistant zirconium oxide porcelain block
抗低温老化氧化锆瓷块的制备方法
XIONG YAN (author) / DING WEIMING (author) / SHEN WEI (author)
2024-04-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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