TY - JOUR
T1 - In situ formation of hexaferrite magnets within a 3Y-TZP matrix: La2O3-ZnO-Fe2O3 and BaO-Fe2O3 systems
T2 - La2O3-ZnO-Fe2O3 and BaO-Fe2O3 systems
AU - Suzuki, Yoshikazu
AU - Calderón, Héctor A.
AU - Kondo, Naoki
AU - Ohji, Tatsuki
PY - 2000
Y1 - 2000
N2 - The in situ formation of magnetoplumbite-type (M-type) hexaferrites within a 3Y-TZP matrix was examined for the La2O3-ZnO-Fe2O3 and BaO-Fe2O3 systems. The formation of barium hexaferrite (Ba-M) was rapid enough at a temperature of 1300 °C for 2 h to result in a uniform dispersion of fine Ba-M particles in a tetragonal zirconia polycrystal (TZP) matrix. However, the formation of lanthanum-substituted hexaferrite (La-M) was rather sluggish, despite the existence of a charge-compensating divalent oxide. The 3Y-TZP/20-wt%-BaFe12O19 in situ composite possessed good magnetic properties, as well as moderately good mechanical properties.
AB - The in situ formation of magnetoplumbite-type (M-type) hexaferrites within a 3Y-TZP matrix was examined for the La2O3-ZnO-Fe2O3 and BaO-Fe2O3 systems. The formation of barium hexaferrite (Ba-M) was rapid enough at a temperature of 1300 °C for 2 h to result in a uniform dispersion of fine Ba-M particles in a tetragonal zirconia polycrystal (TZP) matrix. However, the formation of lanthanum-substituted hexaferrite (La-M) was rather sluggish, despite the existence of a charge-compensating divalent oxide. The 3Y-TZP/20-wt%-BaFe12O19 in situ composite possessed good magnetic properties, as well as moderately good mechanical properties.
UR - http://www.scopus.com/inward/record.url?scp=0033726726&partnerID=8YFLogxK
U2 - 10.1111/j.1151-2916.2000.tb01391.x
DO - 10.1111/j.1151-2916.2000.tb01391.x
M3 - Artículo
SN - 0002-7820
VL - 83
SP - 1346
EP - 1350
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 6
ER -