TRACER-DIFFUSION OF NICKEL IN-BETA-NI3S2 POLYCRYSTALS

Authors
GILEWICZWOLTER J ZUREK Z
Citation
J. Gilewiczwolter et Z. Zurek, TRACER-DIFFUSION OF NICKEL IN-BETA-NI3S2 POLYCRYSTALS, Solid state communications, 88(4), 1993, pp. 279-281
Citations number
6
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
88
Issue
4
Year of publication
1993
Pages
279 - 281
Database
ISI
SICI code
0038-1098(1993)88:4<279:TONIP>2.0.ZU;2-I
Abstract
The diffusion of Ni-63 in polycrystalline samples of beta-Ni3+/-yS2+/- x has been studied by serial sectioning technique and by fotometering of autoradiographs. The diffusion coefficient has been determined as a function of temperature and pressure of sulphur vapor at temperatures ranging 863 K to 943 K and sulfur pressure 10(-4) Pa - 10(-2) Pa. It was found that the most important point defects are doubly charged vac ancies and electron holes.