Kurum Yazarı "Mandal, Hasan" Makale Koleksiyonu İçin Listeleme
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Preparation of multiple-cation alpha-SiAlON ceramics containing lanthanum
Mandal, Hasan; Hofmann, J. Michael (Amer Ceramic Soc, 1999)Until recently, it was accepted that Ce3+ cations, with an ionic radius (r) of 1.03 Angstrom, were too large to form an alpha-SiAlON structure. However, more-recent studies have shown that cerium cations can be incorporated ... -
Thermal stability of rare earth densified ?-sialon ceramics
Mandal, Hasan; Thompson, D. P. (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
Mandal, Hasan; Thompson, D. P. (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) ...