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Preparation method of alumina-zirconia ceramic sagger
The invention relates to a preparation method of an alumina-zirconia ceramic sagger, and relates to the field of high-temperature ceramics, wherein the preparation method comprises the steps: adding 55-65% of alumina with Al2O3 greater than or equal to 98.5 wt%, 15-25% of stable zirconia with ZrO2+Y2O3 greater than or equal to 99.5 wt%, 10-15% of monoclinic zirconia with ZrO2 greater than or equal to 99.5 wt%, and 10-15% of an additive into a ball mill or a stirring mill according to the mass percentage, then adding an aqueous solution accounting for 35-50% of the total amount of the raw materials, mixing and grinding for 4-6 hours to prepare slurry, preparing a granulated material by using a spray granulator, filling the granulated material into a rubber mold, putting the mold into an isostatic press, carrying out compression molding, and sintering a molded green body at the temperature of 1450-1550 DEG C. The volume density of the prepared compact ceramic sagger is 4.3-4.5 g/cm<3>, the apparent porosity is less than or equal to 0.1%, and the normal-temperature breaking strength is larger than or equal to 400 mPa; and the sagger is resistant to corrosion, impermeable, non-sticky and free of slag falling in the high-temperature using process, and any super-strong corrosive lithium battery positive electrode material can be calcined.
一种氧化铝‑氧化锆陶瓷匣钵的制备方法，涉及高温陶瓷领域，按照质量百分比，将Al2O3≥98.5wt%的氧化铝55~65%，ZrO2+Y2O3≥99.5wt%的稳定氧化锆15~25%，ZrO2≥99.5wt%的单斜氧化锆10~15%，添加剂10~15%，按配比加入到球磨机或搅拌磨中，再外加原料总量35~50%的水溶液，混磨4~6小时，制成浆料，经喷雾造粒机制成造粒料，将造粒料装入橡胶模具中，再将模具放入等静压机中加压成型，将成型坯体经1450~1550℃烧成；本发明制作的致密陶瓷匣钵的体积密度在4.3~4.5g/cm3、显气孔率≤0.1%、常温抗折强度≥400mpa；该匣钵在高温使用过程中耐腐蚀、不渗透、不粘料、不掉渣，可以煅烧任何超强腐蚀性的锂电池正极材料。
Preparation method of alumina-zirconia ceramic sagger
The invention relates to a preparation method of an alumina-zirconia ceramic sagger, and relates to the field of high-temperature ceramics, wherein the preparation method comprises the steps: adding 55-65% of alumina with Al2O3 greater than or equal to 98.5 wt%, 15-25% of stable zirconia with ZrO2+Y2O3 greater than or equal to 99.5 wt%, 10-15% of monoclinic zirconia with ZrO2 greater than or equal to 99.5 wt%, and 10-15% of an additive into a ball mill or a stirring mill according to the mass percentage, then adding an aqueous solution accounting for 35-50% of the total amount of the raw materials, mixing and grinding for 4-6 hours to prepare slurry, preparing a granulated material by using a spray granulator, filling the granulated material into a rubber mold, putting the mold into an isostatic press, carrying out compression molding, and sintering a molded green body at the temperature of 1450-1550 DEG C. The volume density of the prepared compact ceramic sagger is 4.3-4.5 g/cm<3>, the apparent porosity is less than or equal to 0.1%, and the normal-temperature breaking strength is larger than or equal to 400 mPa; and the sagger is resistant to corrosion, impermeable, non-sticky and free of slag falling in the high-temperature using process, and any super-strong corrosive lithium battery positive electrode material can be calcined.
一种氧化铝‑氧化锆陶瓷匣钵的制备方法，涉及高温陶瓷领域，按照质量百分比，将Al2O3≥98.5wt%的氧化铝55~65%，ZrO2+Y2O3≥99.5wt%的稳定氧化锆15~25%，ZrO2≥99.5wt%的单斜氧化锆10~15%，添加剂10~15%，按配比加入到球磨机或搅拌磨中，再外加原料总量35~50%的水溶液，混磨4~6小时，制成浆料，经喷雾造粒机制成造粒料，将造粒料装入橡胶模具中，再将模具放入等静压机中加压成型，将成型坯体经1450~1550℃烧成；本发明制作的致密陶瓷匣钵的体积密度在4.3~4.5g/cm3、显气孔率≤0.1%、常温抗折强度≥400mpa；该匣钵在高温使用过程中耐腐蚀、不渗透、不粘料、不掉渣，可以煅烧任何超强腐蚀性的锂电池正极材料。
Preparation method of alumina-zirconia ceramic sagger
一种氧化铝-氧化锆陶瓷匣钵的制备方法
ZHANG ZHENG (Autor:in) / LI YANCHAO (Autor:in) / WEI SHAOXI (Autor:in) / LEI FUXING (Autor:in) / MA WENPENG (Autor:in)
11.02.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Sagger for producing ceramic and manufacturing method for sagger
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