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YAG-based transparent ceramic resistant to ultraviolet radiation and preparation method thereof
The invention discloses a YAG-based transparent ceramic resistant to ultraviolet radiation. The molecular formula of the ultraviolet radiation resistant YAG-based transparent ceramic is Lix:Y3-xAl5O12, x is the molar percentage of Li<+> doped with Y<3+>, and x is more than or equal to 0.0042 and less than or equal to 0.0085. The preparation method comprises the following steps: taking Li2O, Y2O3 and Al2O3 as raw material powder, taking absolute ethyl alcohol as a ball-milling medium, putting the accurately weighed raw material powder and a sintering aid into a ball-milling tank, carrying out ball-milling for 8-16 hours, drying the ball-milled powder, sieving, and calcining in a muffle furnace; carrying out dry-pressing molding on the calcined powder, and then carrying out cold isostatic pressing molding to obtain a compact ceramic biscuit; and carrying out high-pressure and low-temperature hot pressed sintering on the obtained ceramic biscuit, cooling to room temperature, and then carrying out double-sided polishing treatment to obtain the ultraviolet radiation resistant YAG-based transparent ceramic. According to the ceramic, the ultraviolet radiation resistance of the transparent ceramic can be effectively improved, and relatively high transmittance can be always kept after gamma ray irradiation.
一种抗紫外线辐射的YAG基透明陶瓷，其分子式为Lix：Y3‑xAl5O12，其中x为Li+掺杂Y3+位的摩尔百分数，0.0042≤x≤0.0085。制备方法为：以Li2O、Y2O3和Al2O3为原料粉体，以无水乙醇为球磨介质，将准确称量的原料粉体及烧结助剂置于球磨罐内球磨8～16h，再将球磨后的粉体干燥后过筛，并置于马弗炉中煅烧；将煅烧后的粉体进行干压成型后，再进行冷等静压成型得到致密陶瓷素坯；将所得到的陶瓷素坯进行高压低温热压烧结，冷却到室温后再进行双面抛光处理，得到抗紫外线辐射的YAG基透明陶瓷。该陶瓷能够有效改善透明陶瓷的抗紫外线辐射性能，在γ射线照射后能始终保持较高的透过率。
YAG-based transparent ceramic resistant to ultraviolet radiation and preparation method thereof
The invention discloses a YAG-based transparent ceramic resistant to ultraviolet radiation. The molecular formula of the ultraviolet radiation resistant YAG-based transparent ceramic is Lix:Y3-xAl5O12, x is the molar percentage of Li<+> doped with Y<3+>, and x is more than or equal to 0.0042 and less than or equal to 0.0085. The preparation method comprises the following steps: taking Li2O, Y2O3 and Al2O3 as raw material powder, taking absolute ethyl alcohol as a ball-milling medium, putting the accurately weighed raw material powder and a sintering aid into a ball-milling tank, carrying out ball-milling for 8-16 hours, drying the ball-milled powder, sieving, and calcining in a muffle furnace; carrying out dry-pressing molding on the calcined powder, and then carrying out cold isostatic pressing molding to obtain a compact ceramic biscuit; and carrying out high-pressure and low-temperature hot pressed sintering on the obtained ceramic biscuit, cooling to room temperature, and then carrying out double-sided polishing treatment to obtain the ultraviolet radiation resistant YAG-based transparent ceramic. According to the ceramic, the ultraviolet radiation resistance of the transparent ceramic can be effectively improved, and relatively high transmittance can be always kept after gamma ray irradiation.
一种抗紫外线辐射的YAG基透明陶瓷，其分子式为Lix：Y3‑xAl5O12，其中x为Li+掺杂Y3+位的摩尔百分数，0.0042≤x≤0.0085。制备方法为：以Li2O、Y2O3和Al2O3为原料粉体，以无水乙醇为球磨介质，将准确称量的原料粉体及烧结助剂置于球磨罐内球磨8～16h，再将球磨后的粉体干燥后过筛，并置于马弗炉中煅烧；将煅烧后的粉体进行干压成型后，再进行冷等静压成型得到致密陶瓷素坯；将所得到的陶瓷素坯进行高压低温热压烧结，冷却到室温后再进行双面抛光处理，得到抗紫外线辐射的YAG基透明陶瓷。该陶瓷能够有效改善透明陶瓷的抗紫外线辐射性能，在γ射线照射后能始终保持较高的透过率。
YAG-based transparent ceramic resistant to ultraviolet radiation and preparation method thereof
一种抗紫外线辐射的YAG基透明陶瓷及其制备方法
ZHANG LE (author) / CAO YIFEI (author) / ZHOU TIANYUAN (author) / ZHU RUI (author) / LI MING (author) / CHENG XIN (author) / LI YANBIN (author) / WEI SHUAI (author) / WANG ZHONGYING (author) / SHAO CEN (author)
2021-08-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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