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Ho ion doped sesquioxide transparent ceramic and preparation method thereof
The invention discloses Ho ion doped sesquioxide transparent ceramic and a preparation method thereof, and the preparation method comprises the following steps: weighing Y2O3 and a doping agent containing Ho ions according to a chemical formula (Ho < x > Y < 1-x >) 2O3, mixing to obtain mixed powder, and sequentially carrying out ball milling, drying, grinding, sieving and calcining treatment on the mixed powder to obtain Ho: Y2O3 powder (0.001 < = x < = 0.05); the preparation method comprises the following steps: carrying out molding treatment on Ho: Y2O3 powder to obtain a green body; sequentially carrying out vacuum sintering, hot isostatic pressing sintering, annealing and polishing treatment on the green body to obtain the Ho: Y2O3 transparent ceramic, the temperature rise and pressure rise process of hot isostatic pressing sintering comprises the steps that the hot isostatic pressing sintering temperature is increased to the target temperature, then a hot isostatic pressing cavity is pressurized, and the pressure of the hot isostatic pressing cavity is increased to the target pressure; according to the temperature and pressure reduction process of hot isostatic pressing sintering, the temperature of hot isostatic pressing sintering is reduced to 1000 DEG C or below, then pressure relief is conducted on a hot isostatic pressing cavity, and the pressure of the hot isostatic pressing cavity is reduced to normal atmospheric pressure. The residual porosity of the transparent ceramic can be reduced, and the linear transmittance of visible light can be improved.
本发明公开了Ho离子参杂倍半氧化物透明陶瓷及其制备方法，包括将Y2O3和含Ho离子的掺杂剂均按化学式(HoxY1‑x)2O3进行称重后混合，获得混合粉料，并使混合粉料依次经过球磨、烘干、研碎、过筛和煅烧处理，得到Ho:Y2O3粉体，其中，0.001≤x≤0.05；将Ho:Y2O3粉体进行成型处理，得到素胚；将素胚依次经过真空烧结、热等静压烧结、退火、抛光处理后，获得Ho:Y2O3透明陶瓷；热等静压烧结的升温升压过程为先将热等静压烧结温度升到目标温度，再对热等静压腔体增压，将热等静压腔体的压力升到目标压力；热等静压烧结的降温降压过程为先将热等静压烧结温度降低至1000℃以下，再对热等静压腔体泄压，将热等静压腔体的压力降为正常大气压。本发明能够降低透明陶瓷残存气孔率，提高可见光直线透过率。
Ho ion doped sesquioxide transparent ceramic and preparation method thereof
The invention discloses Ho ion doped sesquioxide transparent ceramic and a preparation method thereof, and the preparation method comprises the following steps: weighing Y2O3 and a doping agent containing Ho ions according to a chemical formula (Ho < x > Y < 1-x >) 2O3, mixing to obtain mixed powder, and sequentially carrying out ball milling, drying, grinding, sieving and calcining treatment on the mixed powder to obtain Ho: Y2O3 powder (0.001 < = x < = 0.05); the preparation method comprises the following steps: carrying out molding treatment on Ho: Y2O3 powder to obtain a green body; sequentially carrying out vacuum sintering, hot isostatic pressing sintering, annealing and polishing treatment on the green body to obtain the Ho: Y2O3 transparent ceramic, the temperature rise and pressure rise process of hot isostatic pressing sintering comprises the steps that the hot isostatic pressing sintering temperature is increased to the target temperature, then a hot isostatic pressing cavity is pressurized, and the pressure of the hot isostatic pressing cavity is increased to the target pressure; according to the temperature and pressure reduction process of hot isostatic pressing sintering, the temperature of hot isostatic pressing sintering is reduced to 1000 DEG C or below, then pressure relief is conducted on a hot isostatic pressing cavity, and the pressure of the hot isostatic pressing cavity is reduced to normal atmospheric pressure. The residual porosity of the transparent ceramic can be reduced, and the linear transmittance of visible light can be improved.
本发明公开了Ho离子参杂倍半氧化物透明陶瓷及其制备方法，包括将Y2O3和含Ho离子的掺杂剂均按化学式(HoxY1‑x)2O3进行称重后混合，获得混合粉料，并使混合粉料依次经过球磨、烘干、研碎、过筛和煅烧处理，得到Ho:Y2O3粉体，其中，0.001≤x≤0.05；将Ho:Y2O3粉体进行成型处理，得到素胚；将素胚依次经过真空烧结、热等静压烧结、退火、抛光处理后，获得Ho:Y2O3透明陶瓷；热等静压烧结的升温升压过程为先将热等静压烧结温度升到目标温度，再对热等静压腔体增压，将热等静压腔体的压力升到目标压力；热等静压烧结的降温降压过程为先将热等静压烧结温度降低至1000℃以下，再对热等静压腔体泄压，将热等静压腔体的压力降为正常大气压。本发明能够降低透明陶瓷残存气孔率，提高可见光直线透过率。
Ho ion doped sesquioxide transparent ceramic and preparation method thereof
Ho离子参杂倍半氧化物透明陶瓷及其制备方法
WANG JUN (author) / XU WENQIANG (author) / WANG YING (author) / LIU PENG (author) / MA JIE (author) / SHEN DEYUAN (author) / TANG DINGYUAN (author)
2022-11-18
Patent
Electronic Resource
Chinese
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