Ara
Toplam kayıt 4, listelenen: 1-4
Preparation of multiple-cation alpha-SiAlON ceramics containing lanthanum
(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 ...
Preparation of multiple-cation ?-SiAlON ceramics containing lanthanum
(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 ...
Novel developments in a-SiAION ceramics
(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 ...
Hard and tough ?-SiAION ceramics
(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 ...