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Water Content and Water Evolution from Reaction‐Bonded Aluminum Oxide (RBAO) Powder Precursors
Author(s) -
Temuujin Jadambaa,
Coronel Jose,
Minjigmaa Amgalan,
MacKenzie Kenneth
Publication year - 2008
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2008.02206.x
Subject(s) - materials science , aluminium , water content , titration , ethanol , oxide , aluminum oxide , chemical engineering , inorganic chemistry , metallurgy , organic chemistry , chemistry , geotechnical engineering , engineering
Water evolution behavior from reaction‐bonded aluminum oxide (RBAO) powder precursor was studied by the Carl‐Fischer titration method. RBAO mixtures were milled for 4 and 8 h in absolute ethanol and water–ethanol mixtures containing 5 and 10 vol% water. The water content was then determined under dynamic heating conditions from 20°C to 250°C and static heating at 250°C. When the aluminum content is increased from 30 to 60 vol%, the water content of the milled powder precursor mixtures also increased. The higher water contents observed in powders milled in absolute ethanol are discussed in terms of the possible interaction of the ethanol with the surface of the aluminum particles.