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Cerium-doped yttrium aluminum garnet transparent ceramic raw material and preparation method thereof
The invention relates to a cerium-doped yttrium aluminum garnet transparent ceramic raw material and a preparation method thereof. The raw material comprises the following components in percentage by mass: 54-57% of yttrium oxide powder; 40%-42% of alumina powder; 0-0.5% of cerium oxide powder; 0-0.5% of magnesium oxide powder; 0-0.5% of ethyl orthosilicate; 0-1% of PEG200 powder; and 1-2% of PVA. The preparation method comprises the following steps of: mixing yttrium oxide powder, aluminum oxide powder, cerium oxide powder, magnesium oxide powder, ethyl orthosilicate and PEG200 powder together, and carrying out ball milling to obtain slurry; well mixing the slurry with PVA, and adding the mixture into a granulation tower for spray granulation to obtain granulation powder; adding the granulation powder into a mold, carrying out dry pressing molding, and then carrying out cold isostatic pressing to obtain a green body; and pre-sintering the green body, sintering under a vacuum condition, and cooling and annealing to obtain transparent ceramic. The density of the transparent ceramic is close to a theoretical value of 4.55 g/cm < 3 >, and the linear transmittance in a visible light range is higher than 74%.
本申请涉及一种掺铈钇铝石榴石透明陶瓷原料及制备方法。该原料包括以下质量百分数的成分：54‑57％的氧化钇粉；40％‑42％的氧化铝粉；0‑0.5％的氧化铈粉；0‑0.5％的氧化镁粉；0‑0.5％的正硅酸乙酯；0‑1％的PEG200粉；1‑2％的PVA。该制备方法包括以下步骤：将氧化钇粉、氧化铝粉、氧化铈粉、氧化镁粉、正硅酸乙酯和PEG200粉混合在一起，并球磨，得到浆料；将浆料与PVA混合均匀，并加入造粒塔进行喷雾造粒，得到造粒粉；将造粒粉加入模具内，干压成型之后，再冷等静压，得到生坯；先预烧生坯，再在真空条件下烧结之后，冷却退火，得到透明陶瓷，该透明陶瓷密度接近理论值4.55g/cm3，在可见光范围的直线透过率高于74％。
Cerium-doped yttrium aluminum garnet transparent ceramic raw material and preparation method thereof
The invention relates to a cerium-doped yttrium aluminum garnet transparent ceramic raw material and a preparation method thereof. The raw material comprises the following components in percentage by mass: 54-57% of yttrium oxide powder; 40%-42% of alumina powder; 0-0.5% of cerium oxide powder; 0-0.5% of magnesium oxide powder; 0-0.5% of ethyl orthosilicate; 0-1% of PEG200 powder; and 1-2% of PVA. The preparation method comprises the following steps of: mixing yttrium oxide powder, aluminum oxide powder, cerium oxide powder, magnesium oxide powder, ethyl orthosilicate and PEG200 powder together, and carrying out ball milling to obtain slurry; well mixing the slurry with PVA, and adding the mixture into a granulation tower for spray granulation to obtain granulation powder; adding the granulation powder into a mold, carrying out dry pressing molding, and then carrying out cold isostatic pressing to obtain a green body; and pre-sintering the green body, sintering under a vacuum condition, and cooling and annealing to obtain transparent ceramic. The density of the transparent ceramic is close to a theoretical value of 4.55 g/cm < 3 >, and the linear transmittance in a visible light range is higher than 74%.
本申请涉及一种掺铈钇铝石榴石透明陶瓷原料及制备方法。该原料包括以下质量百分数的成分：54‑57％的氧化钇粉；40％‑42％的氧化铝粉；0‑0.5％的氧化铈粉；0‑0.5％的氧化镁粉；0‑0.5％的正硅酸乙酯；0‑1％的PEG200粉；1‑2％的PVA。该制备方法包括以下步骤：将氧化钇粉、氧化铝粉、氧化铈粉、氧化镁粉、正硅酸乙酯和PEG200粉混合在一起，并球磨，得到浆料；将浆料与PVA混合均匀，并加入造粒塔进行喷雾造粒，得到造粒粉；将造粒粉加入模具内，干压成型之后，再冷等静压，得到生坯；先预烧生坯，再在真空条件下烧结之后，冷却退火，得到透明陶瓷，该透明陶瓷密度接近理论值4.55g/cm3，在可见光范围的直线透过率高于74％。
Cerium-doped yttrium aluminum garnet transparent ceramic raw material and preparation method thereof
掺铈钇铝石榴石透明陶瓷原料及制备方法
WU QIANYING (author) / ZHOU JIN (author) / GAO GUOZHONG (author) / YUAN HOUCHENG (author) / QIN TIE (author) / LIU ZHANG (author) / YANG YANG (author)
2022-02-15
Patent
Electronic Resource
Chinese
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