CHEMICAL DIFFUSION IN NONSTOICHIOMETRIC MANGANOUS SULFIDE

Authors
MROWEC S DANIELEWSKI M WOJTOWICZ A
Citation
S. Mrowec et al., CHEMICAL DIFFUSION IN NONSTOICHIOMETRIC MANGANOUS SULFIDE, Bulletin of the Polish Academy of Sciences. Chemistry, 41(4), 1993, pp. 287-295
Citations number
15
Categorie Soggetti
Chemistry
Journal title
Bulletin of the Polish Academy of Sciences. Chemistry → ACNP
ISSN journal
02397285
Volume
41
Issue
4
Year of publication
1993
Pages
287 - 295
Database
ISI
SICI code
0239-7285(1993)41:4<287:CDINMS>2.0.ZU;2-7
Abstract
The chemical diffusion coefficient in nonstoichiometric manganous sulp hide Mn1-yS was measured as a function of temperature (1073-1373 K) an d sulphur activity (10(-2)-10(3) Pa) using the electrical conductivity reequilibratian method. It has been shown that this coefficient is in dependent of the sulphide composition (defect concentration) and can b e described by the following empirical relation: ($) over tilde DMnS=3 .9.10-2exp(-76.4+/-0.5kJ/M/RT).