SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF CUI AND CUII-DOPED CORDIERITES

Authors
THOMAS P GOUBY I MERCURIO D MERLE T FRIT B
Citation
P. Thomas et al., SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF CUI AND CUII-DOPED CORDIERITES, Materials research bulletin, 30(2), 1995, pp. 141-148
Citations number
18
Categorie Soggetti
Material Science
Journal title
Materials research bulletin → ACNP
ISSN journal
00255408
Volume
30
Issue
2
Year of publication
1995
Pages
141 - 148
Database
ISI
SICI code
0025-5408(1995)30:2<141:SASCOC>2.0.ZU;2-L
Abstract
The possible diffusion and localization of copper in hexagonal cordier ite structure, either by Cu(I) insertion within the hexagonal channels or by Cu(II) substitution for Mg in octahedral sites have been studie d. Limited amounts of Cu(I) (about 30% of theoretical values) can be i nserted within the cordierite channels in statistically occupied 4e si tes (0, 0, z with z = 0.06 and 0.10 respectively for Cu0.5Mg2Al4.5Si4. 5O18 and CuMg2Al5Si4O18). Cu2+/Mg2+ substitution is limited by the com petitive formation of mullite and spinel phases.