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Silicon oxynitride/quartz composite ceramic crucible for smelting photovoltaic-grade silicon and preparation method thereof
The invention relates to a silicon oxynitride/quartz composite ceramic crucible for smelting photovoltaic-grade silicon and a preparation method thereof. According to the technical scheme, the preparation method comprises the following steps: mixing 70-85 parts by mass of silicon oxynitride precursor and 15-30 parts by mass of fused quartz powder, keeping the temperature for 2-10 hours in a mixedatmosphere at the temperature of 1400-1700 DEG C, cooling and grinding to obtain silicon oxynitride powder, putting 50-100 parts by mass of silicon oxynitride powder, 0-50 parts by mass of fused quartz powder, 0.3-1 part by mass of a dispersing agent, 0.1-2 parts by mass of a gelatinizing agent and 30-70 parts by mass of deionized water into a ball milling tank and mixing, injecting the mixture into a mold, carrying out heat preservation for 0.5-3 hours under the water bath condition of 30-90 DEG C, demolding, drying at the temperature of 80-110 DEG C, and carrying out heat preservation for 2-10 hours at the temperature of 1100-1400 DEG C to obtain the silicon oxynitride/quartz composite ceramic crucible for smelting photovoltaic-grade silicon. The composite ceramic crucible prepared by the invention has the characteristics of no cracking and no adhesion with a silicon ingot, and has good use performance.
本发明涉及一种冶炼光伏级硅用氮氧化硅/石英复合陶瓷坩埚及其制备方法。其技术方案是：将70～85质量份的氮氧化硅前驱体和15～30质量份的熔融石英粉体混合，在混合气氛和1400～1700℃条件下保温2～10h，冷却，研磨，制得氮氧化硅粉体；将50～100质量份的氮氧化硅粉体、0～50质量份的熔融石英粉体、0.3～1质量份的分散剂、0.1～2质量份的胶凝剂和30～70质量份的去离子水置入球磨罐中混合，再注入模具，在30～90℃水浴条件下保温0.5～3h，脱模，在80～110℃条件下烘干，于1100～1400℃条件下保温2～10h，制得冶炼光伏级硅用氮氧化硅/石英复合陶瓷坩埚。本发明制备的所述复合陶瓷坩埚具有不开裂和与硅锭不粘连的特点，使用性能良好。
Silicon oxynitride/quartz composite ceramic crucible for smelting photovoltaic-grade silicon and preparation method thereof
The invention relates to a silicon oxynitride/quartz composite ceramic crucible for smelting photovoltaic-grade silicon and a preparation method thereof. According to the technical scheme, the preparation method comprises the following steps: mixing 70-85 parts by mass of silicon oxynitride precursor and 15-30 parts by mass of fused quartz powder, keeping the temperature for 2-10 hours in a mixedatmosphere at the temperature of 1400-1700 DEG C, cooling and grinding to obtain silicon oxynitride powder, putting 50-100 parts by mass of silicon oxynitride powder, 0-50 parts by mass of fused quartz powder, 0.3-1 part by mass of a dispersing agent, 0.1-2 parts by mass of a gelatinizing agent and 30-70 parts by mass of deionized water into a ball milling tank and mixing, injecting the mixture into a mold, carrying out heat preservation for 0.5-3 hours under the water bath condition of 30-90 DEG C, demolding, drying at the temperature of 80-110 DEG C, and carrying out heat preservation for 2-10 hours at the temperature of 1100-1400 DEG C to obtain the silicon oxynitride/quartz composite ceramic crucible for smelting photovoltaic-grade silicon. The composite ceramic crucible prepared by the invention has the characteristics of no cracking and no adhesion with a silicon ingot, and has good use performance.
本发明涉及一种冶炼光伏级硅用氮氧化硅/石英复合陶瓷坩埚及其制备方法。其技术方案是：将70～85质量份的氮氧化硅前驱体和15～30质量份的熔融石英粉体混合，在混合气氛和1400～1700℃条件下保温2～10h，冷却，研磨，制得氮氧化硅粉体；将50～100质量份的氮氧化硅粉体、0～50质量份的熔融石英粉体、0.3～1质量份的分散剂、0.1～2质量份的胶凝剂和30～70质量份的去离子水置入球磨罐中混合，再注入模具，在30～90℃水浴条件下保温0.5～3h，脱模，在80～110℃条件下烘干，于1100～1400℃条件下保温2～10h，制得冶炼光伏级硅用氮氧化硅/石英复合陶瓷坩埚。本发明制备的所述复合陶瓷坩埚具有不开裂和与硅锭不粘连的特点，使用性能良好。
Silicon oxynitride/quartz composite ceramic crucible for smelting photovoltaic-grade silicon and preparation method thereof
冶炼光伏级硅用氮氧化硅/石英复合陶瓷坩埚及其制备方法
WANG QINGHU (author) / LIU JUN (author) / LI YAWEI (author) / SANG SHAOBAI (author) / XU YIBIAO (author) / ZHU TIANBIN (author) / PAN LIPING (author)
2020-11-20
Patent
Electronic Resource
Chinese
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