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Porous α-Al2O3 ceramics prepared by gelcasting

✍ Scribed by H.T. Wang; X.Q. Liu; G.Y. Meng


Book ID
114066875
Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
685 KB
Volume
32
Category
Article
ISSN
0025-5408

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Strong and permeable macro‐porous α‐Al~2~O~3~ membrane supports are made by colloidal filtration of 20 vol% dispersions of α‐Al~2~O~3~ with an average particle size of 600 nm. Intact compacts with very good surface quality were obtained at an optimum pH of 9.5 and dosage of 0.2 wt% ammonium aurintri