DONG Xiuzeng, YU Kangtai, XIAO Zheng

(Tangshan University)

( Wuhan University of Science and Technology)

Abstract: Based on the study of the physical phase composition and microstructure of the non - refired and refred Fe-Cr- Co system black glaze by XRD , SEM, this paper goes a step further to analyse the state , valence, coordination polyhedron and coordination number of Fe in the black glaze by MOSSbauer.The author made a through discussion and properly explained the reason of color and its -change.

Key words: black glaze , refire, color change, MOSSbauer spectroscopy