Yazar "Hofmann, J. Michael" için listeleme
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Hard and tough ?-SiAION ceramics
Mandal, Hasan; Hofmann, J. Michael (2000)Yb, Nd/Ca and Ce/Ca containing a-sialon starting compositions have been densified by either pressureless sintering or capsul free sinter/HIP'ing using "conventional" ?-Si3N4 powder. X-ray diffraction studies of both ... -
Hard and tough alpha-SiAlON ceramics
Mandal, Hasan; Hofmann, J. Michael (Trans Tech Publications LTD, 2000)Yb, Nd/Ca and Ce/Ca containing a-sialon starting compositions have been densified by either pressureless sintering or capsul free sinter/HIP'ing using "conventional" alpha-Si3N4 powder. X-ray diffraction studies of both ... -
High temperature thermal stability of multi-cation doped $alpha$-sialon ceramics containing ytterbium
Nadir element oksit katkılı $alpha$-sialon seramiklerinde oluşan faz komposizyonlarının ve mikroyapılarının sinterleme sonrası yapılan ısıl işlemlerden önemli ölçüde etkilendiği yakın zamanda yapılan çalışmalarda bulunmuştur. ... -
Novel developments in a-SiAION ceramics
Mandal, Hasan; Hofmann, J. Michael (2000)Densification and stabilization of ct-sialon ceramics have been investigated by using oxides of large cations (Sr2+, La3+, Ce3+, Nd3+) and their equimolar mixtures with calcium or ytterbium as a principal cation. All ... -
Novel developments in alpha-SiAlON ceramics
Mandal, Hasan; Hofmann, J. Michael (Trans Tech Publications LTD, 2000)Densification and stabilization of alpha-sialon ceramics have been investigated by using oxides of large cations (Sr2+, La3+, Ce3+, Nd3+) and their equimolar mixtures with calcium or ytterbium as a principal cation. All ... -
Preparation of multiple-cation ?-SiAlON ceramics containing lanthanum
Mandal, Hasan; Hofmann, J. Michael (1999)Until recently, it was accepted that Ce 3+ cations, with an ionic radius (r) of 1.03 Å, were too large to form an ?-SiAlON structure. However, more-recent studies have shown that cerium cations can be incorporated into ... -
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 ...
