Ara
Toplam kayıt 3, listelenen: 1-3
Preparation of Ce and Nd ß-sialon ceramics by ? › ß sialon transformation
(1997)
It has previously been accepted that lanthanum and cerium do not form ?-sialon structures because their ions are too large to enter the interstices in the structure. Recent work on heat treatment of rare earth densified ...
Thermal stability of rare earth densified ?-sialon ceramics
(1997)
Typical ?-sialon and mixed ?-ß sialon starting compositions were densified by either hot pressing or pressureless sintering using the oxides of Yb, Dy, Sm and Nd. The resulting materials were heat-treated at 1450°C for up ...
?ݧ Sialon Transformation in Calcium-containing ? -SiAlON Ceramics
(1999)
Recent studies on rare earth densified ?-sialon ceramics have shown that the resulting ?-sialon product, present either as a single phase or in conjunction with ß-sialon, is unstable when heat treated at lower (1350-1600°C) ...