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Corundum sagger for high-temperature sintering of high-purity aluminum oxide ceramic and preparation method of corundum sagger
The invention discloses a corundum sagger for high-temperature sintering of high-purity alumina ceramics and a preparation method of the corundum sagger. The preparation method comprises the following specific steps: S1, mixing sintered corundum particles and premixed fine powder according to a certain mass ratio to obtain a premix; the premixed fine powder comprises sintered corundum fine powder, fused zirconia corundum fine powder, rare earth composite yttrium zirconium ceramic powder, cerous phosphate powder and amorphous alumina fine powder; s2, sequentially adding a certain mass of potato starch and a rho-aluminum oxide colloidal solution into the premix, and uniformly mixing to obtain a mixture; s3, sealing and ageing the mixture to obtain a plastic material; s4, the plastic material is subjected to compression molding and demolding, and a green body is obtained; and S5, the green body is subjected to hot pressing sintering, and the corundum sagger for high-purity aluminum oxide ceramic high-temperature sintering is obtained. The corundum sagger for high-temperature sintering of the high-purity alumina ceramic prepared by the invention is high in service temperature, good in sintering performance, high in strength, high in refractoriness under load and good in thermal shock resistance.
本发明公开了一种高纯氧化铝陶瓷高温烧结用刚玉质匣钵及其制备方法。本发明的具体步骤如下：步骤S1、将一定质量比的烧结刚玉颗粒和预混细粉料混合得预混料；所述预混细粉料包括烧结刚玉细粉、电熔锆刚玉细粉、稀土复合钇锆陶瓷粉、磷酸铈粉体和无定形氧化铝细粉；步骤S2、向预混料中依次加入一定质量的马铃薯淀粉和ρ‑氧化铝胶体溶液，并混合均匀得混合料；步骤S3、将混合料密封困料得塑性料；步骤S4、将塑性料模压成型后脱模，得到生坯；步骤S5、将生坯热压烧结即得高纯氧化铝陶瓷高温烧结用刚玉质匣钵。本发明所制备的高纯氧化铝陶瓷高温烧结用刚玉质匣钵服役温度高、烧结性能好、强度大、荷重软化温度高和抗热震性能好。
Corundum sagger for high-temperature sintering of high-purity aluminum oxide ceramic and preparation method of corundum sagger
The invention discloses a corundum sagger for high-temperature sintering of high-purity alumina ceramics and a preparation method of the corundum sagger. The preparation method comprises the following specific steps: S1, mixing sintered corundum particles and premixed fine powder according to a certain mass ratio to obtain a premix; the premixed fine powder comprises sintered corundum fine powder, fused zirconia corundum fine powder, rare earth composite yttrium zirconium ceramic powder, cerous phosphate powder and amorphous alumina fine powder; s2, sequentially adding a certain mass of potato starch and a rho-aluminum oxide colloidal solution into the premix, and uniformly mixing to obtain a mixture; s3, sealing and ageing the mixture to obtain a plastic material; s4, the plastic material is subjected to compression molding and demolding, and a green body is obtained; and S5, the green body is subjected to hot pressing sintering, and the corundum sagger for high-purity aluminum oxide ceramic high-temperature sintering is obtained. The corundum sagger for high-temperature sintering of the high-purity alumina ceramic prepared by the invention is high in service temperature, good in sintering performance, high in strength, high in refractoriness under load and good in thermal shock resistance.
本发明公开了一种高纯氧化铝陶瓷高温烧结用刚玉质匣钵及其制备方法。本发明的具体步骤如下：步骤S1、将一定质量比的烧结刚玉颗粒和预混细粉料混合得预混料；所述预混细粉料包括烧结刚玉细粉、电熔锆刚玉细粉、稀土复合钇锆陶瓷粉、磷酸铈粉体和无定形氧化铝细粉；步骤S2、向预混料中依次加入一定质量的马铃薯淀粉和ρ‑氧化铝胶体溶液，并混合均匀得混合料；步骤S3、将混合料密封困料得塑性料；步骤S4、将塑性料模压成型后脱模，得到生坯；步骤S5、将生坯热压烧结即得高纯氧化铝陶瓷高温烧结用刚玉质匣钵。本发明所制备的高纯氧化铝陶瓷高温烧结用刚玉质匣钵服役温度高、烧结性能好、强度大、荷重软化温度高和抗热震性能好。
Corundum sagger for high-temperature sintering of high-purity aluminum oxide ceramic and preparation method of corundum sagger
一种高纯氧化铝陶瓷高温烧结用刚玉质匣钵及其制备方法
LIU MINGHUA (Autor:in)
24.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
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DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
Sagger for producing ceramic and manufacturing method for sagger
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024