Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of high-purity aluminum oxide ceramic and preparation method of ceramic product
The invention relates to a preparation method of aluminum oxide ceramic, and in particular, relates to a preparation method of high-purity aluminum oxide ceramic, wherein the preparation method comprises the following steps: mixing aluminum oxide ceramic balls with various diameters; preparing alumina powder, wherein the mass ratio of the alumina powder to the alumina ceramic balls is 1:(1.5-3); adding the following auxiliary materials in percentage by weight: 0.5 to 2.5% of pseudo-boehmite, 0.1 to 0.3% of silica sol, 0.2 to 0.6% of magnesium oxide and 0.1 to 0.6% of yttrium oxide; adding alumina ceramic balls, alumina powder and auxiliary materials into a ball mill, adding 0.1%-0.5% of a dispersing agent, and carrying out wet ball milling for 20-30 h to obtain slurry; acidizing the slurrysubjected to ball milling; carrying out spray granulation on the acidified slurry to obtain high-purity aluminum oxide ceramic; homogenizing the high-purity aluminum oxide ceramic for 24-48 h in theenvironment with the temperature ranging from 20 DEG C to 45 DEG C and the humidity ranging from 40% to 65%, to obtain the high-purity aluminum oxide ceramic, wherein the aluminum oxide content of thehigh-purity aluminum oxide ceramic is not lower than 99.5%. The high-purity aluminum oxide ceramic is convenient to prepare, low in cost and good in ceramic performance.
本发明涉及一种氧化铝陶瓷的制备方法，尤其是高纯氧化铝陶瓷的制备方法，包括以下步骤：将多种直径的氧化铝陶瓷球混合；配置氧化铝粉，所述氧化铝粉与氧化铝陶瓷球的质量比为1:(1.5～3)；按照总重量的百分比加入以下辅料：0.5～2.5％拟薄水铝石、0.1～0.3％的硅溶胶、0.2～0.6％的氧化镁、0.1～0.6的氧化钇；将氧化铝陶瓷球、氧化铝粉、辅料均加入到球磨机中，同时加入0.1％～0.5％的分散剂，湿法球磨20～30h得到浆料；将球磨后的浆料酸化处理；将酸化处理后的浆料进行喷雾造粒，喷雾造粒得到高纯氧化铝陶瓷；将高纯氧化铝陶瓷在温度在20～45℃，湿度在40～65％的环境下均化处理24～48小时，得到高纯氧化铝陶瓷，所述高纯氧化铝陶瓷的氧化铝含量不低于99.5％。该高纯氧化铝陶瓷制备方便成本低、陶瓷性能好。
Preparation method of high-purity aluminum oxide ceramic and preparation method of ceramic product
The invention relates to a preparation method of aluminum oxide ceramic, and in particular, relates to a preparation method of high-purity aluminum oxide ceramic, wherein the preparation method comprises the following steps: mixing aluminum oxide ceramic balls with various diameters; preparing alumina powder, wherein the mass ratio of the alumina powder to the alumina ceramic balls is 1:(1.5-3); adding the following auxiliary materials in percentage by weight: 0.5 to 2.5% of pseudo-boehmite, 0.1 to 0.3% of silica sol, 0.2 to 0.6% of magnesium oxide and 0.1 to 0.6% of yttrium oxide; adding alumina ceramic balls, alumina powder and auxiliary materials into a ball mill, adding 0.1%-0.5% of a dispersing agent, and carrying out wet ball milling for 20-30 h to obtain slurry; acidizing the slurrysubjected to ball milling; carrying out spray granulation on the acidified slurry to obtain high-purity aluminum oxide ceramic; homogenizing the high-purity aluminum oxide ceramic for 24-48 h in theenvironment with the temperature ranging from 20 DEG C to 45 DEG C and the humidity ranging from 40% to 65%, to obtain the high-purity aluminum oxide ceramic, wherein the aluminum oxide content of thehigh-purity aluminum oxide ceramic is not lower than 99.5%. The high-purity aluminum oxide ceramic is convenient to prepare, low in cost and good in ceramic performance.
本发明涉及一种氧化铝陶瓷的制备方法，尤其是高纯氧化铝陶瓷的制备方法，包括以下步骤：将多种直径的氧化铝陶瓷球混合；配置氧化铝粉，所述氧化铝粉与氧化铝陶瓷球的质量比为1:(1.5～3)；按照总重量的百分比加入以下辅料：0.5～2.5％拟薄水铝石、0.1～0.3％的硅溶胶、0.2～0.6％的氧化镁、0.1～0.6的氧化钇；将氧化铝陶瓷球、氧化铝粉、辅料均加入到球磨机中，同时加入0.1％～0.5％的分散剂，湿法球磨20～30h得到浆料；将球磨后的浆料酸化处理；将酸化处理后的浆料进行喷雾造粒，喷雾造粒得到高纯氧化铝陶瓷；将高纯氧化铝陶瓷在温度在20～45℃，湿度在40～65％的环境下均化处理24～48小时，得到高纯氧化铝陶瓷，所述高纯氧化铝陶瓷的氧化铝含量不低于99.5％。该高纯氧化铝陶瓷制备方便成本低、陶瓷性能好。
Preparation method of high-purity aluminum oxide ceramic and preparation method of ceramic product
高纯氧化铝陶瓷的制备方法及陶瓷产品的制备方法
XUE ZHIGANG (Autor:in) / QIU YONGBIN (Autor:in) / QIU CHEN (Autor:in) / ZHU JUN (Autor:in) / ZHENG XINGYI (Autor:in)
17.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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