MOSSBAUER SPECTROSCOPIC STUDY ON GLAZE OF POTTERY

Iron-barium glaze was prepared from commercially available materials f or ceramic arts and from chemical reagents, and investigated by means of Mossbauer spectroscopy and an electron probe micro analyzer (EPMA). Mossbauer spectra showed a doublet of paramagnetic high-spin Fe(II) a nd Fe(III) incorporated into aluminosilicate, and the magnetically-spl it hyperfine structures of hematite and magnetite, depending on the ir on content and firing conditions. The EPMA indicated striped patterns on the secondary electron images, and the fluorescent X-ray analysis p roved that the patterns are due to the heterogeneous distribution of e lements in the glaze.