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XPS study of CaO in sodium silicate glass [electronic resource].

Published:
Argonne, Ill. : Argonne National Laboratory, 1981.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
Pages: 17 : digital, PDF file
Additional Creators:
Argonne National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
This paper shows that CaO added to silicate glasses behaves much like Na/sub 2/O in converting bridging oxygen sites to nonbridging sites. Good correspondence with model predictions was obtained but deviations were still sufficiently large to warrant attention. We speculate that some CaO may remain unreacted or that small-scale phase separation may occur. XPS core level shifts were monitored and possible charge-transfer effects were considered. Preliminary theoretical calculations utilizing a molecular-cluster approach were presented. XPS spectra for various glass compositions were simulated by appropriately combining local densities of state calculated for individual atoms. Dominant spectral features observed experimentally were found in the simulations. In conjunction with experiments, more carefully refined calculations will be subsequently examined. 7 figures.
Report Numbers:
E 1.99:conf-810736-3
conf-810736-3
Subject(s):
Other Subject(s):
Note:
Published through SciTech Connect.
07/01/1981.
"conf-810736-3"
"DE83007889"
Meeting on glass structures: surface and bulk, University Park, PA, USA, 28 Jul 1981.
Veal, B.W.; Lam, D.J.; Paulikas, A.P.; Ching, W.Y.
Funding Information:
W-31-109-ENG-38
View MARC record | catkey: 14461346