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A simple synthesis of the refractory ceramic sulfide CeS by electron beam irradiation
Author(s) -
Panetta Riccardo,
Latini Alessandro
Publication year - 2017
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.15070
Subject(s) - cerium , graphite , pellets , irradiation , materials science , sulfide , impurity , ceramic , sulfur , annealing (glass) , electron beam processing , inorganic chemistry , radiochemistry , chemistry , metallurgy , composite material , organic chemistry , physics , nuclear physics
A new, relatively fast and simple synthesis of the refractory sulfide CeS using electron beam irradiation has been developed. Differently from the most common procedures involving highly reactive and/or toxic precursors such as cerium hydride and carbon disulfide, the approach here presented is based on the electron beam irradiation of pellets composed of a mixture of cerium sesquisulfide, cerium dioxide and graphite powders, i.e., nontoxic and nonreactive materials in ambient conditions that do not need any special caution during their use. CeS with a purity ≥98 wt% has been obtained, being Ce 2 O 2 S the impurity and whose amount can be lowered by annealing on a graphite surface.