Preparation method of nanocrystalline laser-level sesquioxide transparent ceramic
The invention discloses a preparation method of nanocrystalline laser grade sesquioxide transparent ceramics. The method comprises the following steps: weighing and mixing Y2O3 and a Cr-containing dopant according to a chemical formula (CrxY1-x)2O3 to obtain mixed powder (0.0002
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| creator | WANG YING SHEN DEYUAN WANG JUN MA JIE TANG DINGYUAN LIU PENG LI QING ZHANG JIAN ZHANG CHANGHUA BU XIANGSHAI ZHOU KAN |
| description | The invention discloses a preparation method of nanocrystalline laser grade sesquioxide transparent ceramics. The method comprises the following steps: weighing and mixing Y2O3 and a Cr-containing dopant according to a chemical formula (CrxY1-x)2O3 to obtain mixed powder (0.0002 |
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The method comprises the following steps: weighing and mixing Y2O3 and a Cr-containing dopant according to a chemical formula (CrxY1-x)2O3 to obtain mixed powder (0.0002 <= x <= 0.02), and sequentially carrying out ball milling, drying, grinding, sieving and calcining to obtain Cr:Y2O3 powder; subjecting the Cr:Y2O3 powder to forming treatment to obtain a plain blank; and sintering a green body in a vacuum environment at 1200-1600 DEG C for 0.5-50 hours, carrying out hot isostatic pressing sintering in inert gas at 1200-1600 DEG C for 0.5-8 hours, annealing in air, oxygen or reducing atmosphere at 1100-1500 DEG C for 0.5-30 hours, and carrying out two-side fine polishing to obtain the Cr:Y2O3 transparent ceramic. A proper amount of Cr is used as a dopant, so that the sintering temperature of the pure sesquioxide ceramic can be reduced. 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The method comprises the following steps: weighing and mixing Y2O3 and a Cr-containing dopant according to a chemical formula (CrxY1-x)2O3 to obtain mixed powder (0.0002 <= x <= 0.02), and sequentially carrying out ball milling, drying, grinding, sieving and calcining to obtain Cr:Y2O3 powder; subjecting the Cr:Y2O3 powder to forming treatment to obtain a plain blank; and sintering a green body in a vacuum environment at 1200-1600 DEG C for 0.5-50 hours, carrying out hot isostatic pressing sintering in inert gas at 1200-1600 DEG C for 0.5-8 hours, annealing in air, oxygen or reducing atmosphere at 1100-1500 DEG C for 0.5-30 hours, and carrying out two-side fine polishing to obtain the Cr:Y2O3 transparent ceramic. A proper amount of Cr is used as a dopant, so that the sintering temperature of the pure sesquioxide ceramic can be reduced. 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The method comprises the following steps: weighing and mixing Y2O3 and a Cr-containing dopant according to a chemical formula (CrxY1-x)2O3 to obtain mixed powder (0.0002 <= x <= 0.02), and sequentially carrying out ball milling, drying, grinding, sieving and calcining to obtain Cr:Y2O3 powder; subjecting the Cr:Y2O3 powder to forming treatment to obtain a plain blank; and sintering a green body in a vacuum environment at 1200-1600 DEG C for 0.5-50 hours, carrying out hot isostatic pressing sintering in inert gas at 1200-1600 DEG C for 0.5-8 hours, annealing in air, oxygen or reducing atmosphere at 1100-1500 DEG C for 0.5-30 hours, and carrying out two-side fine polishing to obtain the Cr:Y2O3 transparent ceramic. A proper amount of Cr is used as a dopant, so that the sintering temperature of the pure sesquioxide ceramic can be reduced. Meanwhile, the prepared ceramic material can be ensured to have na</abstract><oa>free_for_read</oa></addata></record> |
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| title | Preparation method of nanocrystalline laser-level sesquioxide transparent ceramic |
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