利用冷等静压烧结无定形 Al(OH)3

IF 0.6 4区材料科学 Q4 MATERIALS SCIENCE, CERAMICS

Glass and Ceramics Pub Date : 2024-04-29 DOI:10.1007/s10717-024-00645-6

S. Yu. Prilipko, G. K. Volkova, L. V. Loladze, I. I. Bryukhanova, G. N. Golovan, V. A. Glazunova

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引用次数: 0

摘要

研究发现，无定形 Al(OH)3 的高分解温度使得直接从氢氧化铝烧结刚玉陶瓷成为可能，从而绕过了氢氧化铝的初步热脱水阶段。在 200、600 和 1000 兆帕的压力下，使用冷等静压法获得了密度分别为理论值 62%、69% 和 79% 的压制物。研究了无定形 Al(OH)3 密实材料收缩率与冷等静压压力的温度关系。在 1050 - 1150°C 范围内发现了一个强烈收缩区域，该区域与无定形 Al(OH)3 的完全分解温度和 γ → α-Al2O3 转变温度相吻合。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Sintering of Amorphous Al(OH)3 Using Cold Isostatic Pressing

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Sintering of Amorphous Al(OH)3 Using Cold Isostatic Pressing

It was found that the high decomposition temperature of amorphous Al(OH)₃ makes it possible to sinter corundum ceramics directly from aluminum hydroxide, bypassing the stage of its preliminary thermal dehydration. Using the cold isostatic pressing method at 200, 600, and 1000 MPa, compacts with densities of 62, 69, and 79% of the theoretical value were obtained. The temperature dependence of the shrinkage of amorphous Al(OH)₃ compacts was studied as a function of the cold isostatic pressing pressure. An area of intense shrinkage was discovered in the range 1050 – 1150°C, which coincides with both the temperature of complete decomposition of amorphous Al(OH)₃ and the transition γ → α-Al₂O₃.

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来源期刊

Glass and Ceramics 工程技术-材料科学：硅酸盐

CiteScore

1.00

自引率

16.70%

发文量

审稿时长

6-12 weeks

期刊介绍： Glass and Ceramics reports on advances in basic and applied research and plant production techniques in glass and ceramics. The journal''s broad coverage includes developments in the areas of silicate chemistry, mineralogy and metallurgy, crystal chemistry, solid state reactions, raw materials, phase equilibria, reaction kinetics, physicochemical analysis, physics of dielectrics, and refractories, among others.