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Alumina ceramic granulation powder and preparation method thereof
The invention provides aluminum oxide ceramic granulation powder and a preparation method thereof.The preparation method comprises the steps that S1, aluminum oxide powder and aluminum oxide whiskers are mixed and subjected to vacuum hot pressing, and pretreated aluminum oxide is obtained; s2, the pretreated aluminum oxide, polyethylene glycol-cellulose nanocrystals, gneiss powder, akermanite powder, mineral powder-carbonized steel slag, a dispersing agent and a plasticizer are subjected to ball milling to obtain powder, the powder is added into water, ultrasonic treatment is conducted, plasma treatment is conducted after ultrasonic treatment is completed, and slurry is obtained; s3, performing high-pressure and heating treatment on the slurry, then releasing the pressure to normal pressure, and continuing ultrasonic treatment during the period to obtain a mixture; s4, the mixture is subjected to spray granulation, sieving, iron removal and homogenization for standby application, and the aluminum oxide ceramic granulation powder is obtained. The aluminum oxide content of the aluminum oxide ceramic granulation powder is 99% or above, the particle size is small, the particle size distribution is narrow, the sphericity degree and the fluidity are good, the sintering performance is good, the ceramic forming density is high, the compactness is high, and the obtained aluminum oxide ceramic is high in mechanical property and wide in application prospect.
本发明提供一种氧化铝陶瓷造粒粉及其制备方法，制备步骤包括：S1、氧化铝粉和氧化铝晶须混合，真空热压，得预处理氧化铝；S2、预处理氧化铝，聚乙二醇‑纤维素纳米晶，片麻岩石粉，镁黄长石粉，矿粉‑碳化钢渣，分散剂和增塑剂进行球磨，得粉料，将粉料加入水中，超声处理，超声结束后进行等离子处理，得浆料；S3、将浆料进行高压、加热处理，然后卸压至常压，期间继续超声处理，得到混合物；S4、将混合物进行喷雾造粒，过筛，除铁，均化备用，得到氧化铝陶瓷造粒粉。本发明的氧化铝陶瓷造粒粉的氧化铝含量为99％以上，粒度小，粒度分布窄，球形度和流动性好，且烧结性能好，成瓷密度高，致密性高，得到的氧化铝陶瓷力学性能高，应用前景广泛。
Alumina ceramic granulation powder and preparation method thereof
The invention provides aluminum oxide ceramic granulation powder and a preparation method thereof.The preparation method comprises the steps that S1, aluminum oxide powder and aluminum oxide whiskers are mixed and subjected to vacuum hot pressing, and pretreated aluminum oxide is obtained; s2, the pretreated aluminum oxide, polyethylene glycol-cellulose nanocrystals, gneiss powder, akermanite powder, mineral powder-carbonized steel slag, a dispersing agent and a plasticizer are subjected to ball milling to obtain powder, the powder is added into water, ultrasonic treatment is conducted, plasma treatment is conducted after ultrasonic treatment is completed, and slurry is obtained; s3, performing high-pressure and heating treatment on the slurry, then releasing the pressure to normal pressure, and continuing ultrasonic treatment during the period to obtain a mixture; s4, the mixture is subjected to spray granulation, sieving, iron removal and homogenization for standby application, and the aluminum oxide ceramic granulation powder is obtained. The aluminum oxide content of the aluminum oxide ceramic granulation powder is 99% or above, the particle size is small, the particle size distribution is narrow, the sphericity degree and the fluidity are good, the sintering performance is good, the ceramic forming density is high, the compactness is high, and the obtained aluminum oxide ceramic is high in mechanical property and wide in application prospect.
本发明提供一种氧化铝陶瓷造粒粉及其制备方法，制备步骤包括：S1、氧化铝粉和氧化铝晶须混合，真空热压，得预处理氧化铝；S2、预处理氧化铝，聚乙二醇‑纤维素纳米晶，片麻岩石粉，镁黄长石粉，矿粉‑碳化钢渣，分散剂和增塑剂进行球磨，得粉料，将粉料加入水中，超声处理，超声结束后进行等离子处理，得浆料；S3、将浆料进行高压、加热处理，然后卸压至常压，期间继续超声处理，得到混合物；S4、将混合物进行喷雾造粒，过筛，除铁，均化备用，得到氧化铝陶瓷造粒粉。本发明的氧化铝陶瓷造粒粉的氧化铝含量为99％以上，粒度小，粒度分布窄，球形度和流动性好，且烧结性能好，成瓷密度高，致密性高，得到的氧化铝陶瓷力学性能高，应用前景广泛。
Alumina ceramic granulation powder and preparation method thereof
一种氧化铝陶瓷造粒粉及其制备方法
DENG CHENGXI (author) / LIU BIN (author)
2024-12-31
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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