Lm. Colyer et al., IN-SITU STUDY OF CERAMIC FORMATION FROM CO2-A USING COMBINED XRD( ANDZN2+ EXCHANGED ZEOLITE)XAFS TECHNIQUES/, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 97(1-4), 1995, pp. 107-110
The production of a cobalt spinel (Co3-xAlxO4(x = 0,1,2)) based cerami
c composite from the heat induced collapse of cobalt exchanged sodium
zeolite-A (Co/Na zeolite-A) has been studied both in situ and ex situ
using synchrotron radiation XRD and XAFS techniques. The precipitation
of this phase is accompanied by the transitory presence of nepheline
(NaAlSiO4) indicating the intermediate behaviour of this system betwee
n that of Na zeolite-A, which fully precipitates nepheline on heating,
and Zn/Na zeolite-A which does not exhibit any nepheline production o
ver the temperature range studied.