Premium
A study of the formation of CuAl 2 O 4 from CuO and Al 2 O 3 by solid state reaction at 1000°C and 950°C
Author(s) -
Paulsson H.,
Rosén E.
Publication year - 1973
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.19734010207
Subject(s) - spinel , solid state , reaction mechanism , grain size , oxide , chemistry , diffusion , mineralogy , analytical chemistry (journal) , materials science , thermodynamics , physics , metallurgy , catalysis , biochemistry , chromatography
The formation of the spinel CuAl 2 O 4 from the oxides CuO and Al 2 O 3 has been studied at 1000 and 950°C in air by measuring the fraction reaction completed as a function of time. In the experiments the molar oxide ratios were CuO/Al 2 O 3 = 0.5, 1.0 and 2.0 and the grain size for CuO was 1–3 μ throughout while for Al 2 O 3 fractions of 40–60 μ, 71–100 μ and 100–125 μ, were used. The rate of reaction could be explained quite well assuming a three‐dimensional diffusion mechanism.