Nickel aluminate (NiAl2O4) powders were fabricated by a polymer solution route employing polyvinyl alcohol as a polymeric
carrier in a mixed metal cation solution. The precursor gels were aerated and the calcined powders were also soft and porous.
T...
Nickel aluminate (NiAl2O4) powders were fabricated by a polymer solution route employing polyvinyl alcohol as a polymeric
carrier in a mixed metal cation solution. The precursor gels were aerated and the calcined powders were also soft and porous.
The crystalline development and microstructures of the synthesized powders were examined by X-ray diffractometry and
scanning electron microscopy. The porous powders were ball-milled to sub-micron sized powders and their sintering behavior
was examined. NiAl2O4 porous samples were fabricated with the ball-milled powders and their microstructures and
compressive strengths were also examined. The ball-milled, fine NiAl2O4 powders were fully densified at a temperature of
1600 oC and the strength of the porous NiAl2O4 was found to be affected by the sizes of the starting powder and internal pores.