Preparation method of high-transmittance Dy: Y2O3 transparent ceramic: Fid-Bau Portal

Preparation method of high-transmittance Dy: Y2O3 transparent ceramic

WANG JUN / MA JIE / WANG FEI / LIU PENG / SHEN DEYUAN

The invention relates to a preparation method of high-transmittance Dy: Y2O3 transparent ceramic. The preparation method comprises the following steps: preparing mother liquor from Dy (NO3) 3, Y (NO3) 3, La (NO3) 3 and ZrOCl2. 8H2O solutions as raw materials; an NH4OH aqueous solution is used as a precipitator; the method comprises the following steps: firstly, dropwise adding a precipitant into a mother solution to generate a precipitate, then carrying out cleaning and solid-liquid separation treatment to obtain a precipitate, and sequentially carrying out drying, grinding and sieving treatment on the precipitate to obtain powder; carrying out calcination treatment on the powder to synthesize Dy: Y2O3 nano powder; grinding the powder by using a zirconium oxide mortar, and then carrying out sieving treatment; the sieved powder is sequentially subjected to dry pressing forming and cold isostatic pressing forming treatment, and a biscuit is obtained; carrying out vacuum sintering on the biscuit, and then carrying out hot isostatic pressing sintering; the method comprises the following steps: annealing a sintered biscuit, and polishing to obtain the high-transparency Dy: Y2O3 transparent ceramic. The method can be used for preparing the transparent ceramic bearing high-power laser, and the transparent ceramic is good in stability.

一种高透过率Dy:Y2O3透明陶瓷的制备方法，采用Dy(NO3)3、Y(NO3)3、La(NO3)3、ZrOCl2·8H2O溶液为原料配成母液；采用NH4OH水溶液作为沉淀剂；先将沉淀剂滴入母液中生成沉淀，再通过清洗和固液分离处理得到沉淀物，依次对沉淀物进行干燥、碾碎和过筛处理，得到粉体；将粉体进行煅烧处理合成出Dy:Y2O3纳米粉体；将粉体用氧化锆研钵碾碎，再进行过筛处理；将过筛后的粉体依次经过干压成型和冷等静压成型处理，得到素坯；先对素坯进行真空烧结，再进行热等静压烧结；先对烧结后的素坯进行退火处理，再进行抛光处理得到高透明度Dy:Y2O3透明陶瓷。该方法可以制备出承载高功率激光的透明陶瓷，其稳定性好。

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