Solution combustion synthesis and sintering behavior of porous MgAl2O4 powders

• Main Authors: Bai J.H., Liu J.C.
• Format: Article
• Language: English
• Published: International Institute for the Science of Sintering, Beograd 2010-01-01
• Series: Science of Sintering
• Subjects: solution combustion synthesis; porous powders; MgAl2O4; sintering behavior
• Online Access: http://www.doiserbia.nb.rs/img/doi/0350-820X/2010/0350-820X1002133B.pdf

Porous MgAl2O4 powders were synthesized with a solution combustion route using a mixture of glycine and urea with the glycine/urea molar ratio of 2/9 as fuel. For the comparison purpose, denser powders were also combustion synthesized using urea as fuel. The porous/denser structure, characteristics (e.g. crystallite size and specific surface areas) and sinterability of the two powders were investigated in detail. Experimental results disclosed that the as-prepared porous powders exhibited a much lower degree of agglomeration, smaller average agglomerate particle size and larger surface areas and thus far higher sintering behavior than the denser powders.