Ys. Cho et Vrw. Amarakoon, NANOSCALE COATING OF SILICON AND MANGANESE ON FERRIMAGNETIC YTTRIUM IRON GARNETS, Journal of the American Ceramic Society, 79(10), 1996, pp. 2755-2758
A uniform microstructure of Gd-substituted yttrium iron garnet (Y2Gd1F
e5O12) was obtained with additives of Si and Mn using a sol-gel coatin
g process. Tetraethyl orthosilicate (TEOS) and manganese acetate were
used as Si and Mn sources for the set-gel coating procedure, respectiv
ely. TEM/EDS analysis confirmed the presence of a relatively uniform n
anoscale coating of Si and Mn around each particle. High density and u
niform microstructure were obtained after sintering at 1400 degrees C
in O-2 atmosphere. The density and grain size of the specimens depende
d on Mn content. The results were compared with materials fabricated w
ithout additives incorporated by the sol-gel coating procedure.