TY - JOUR
T1 - Synthesis of [NZP]-structure-type materials by the combustion reaction method
AU - Breval, Else
AU - Agrawal, Dinesh K.
PY - 1998/7
Y1 - 1998/7
N2 - Ca0.5Sr0.5Zr4P6O24 and Ba1.25Zr4P5.5Si0.5O24 compositions, which belong to the [NZP] family of low-thermal-expansion materials, were synthesized by the combustion reaction method using urea as a fuel and NH4NO3 as an oxidizer. The combustion method is a highly exothermic reaction often referred to as self-propagating high-temperature synthesis. The raw materials used were metal zirconates and fine ZrO2 powders. An earlier-described combustion method using metal nitrates, zirconium oxynitrate, and ammonium dihydrophosphate to synthesize [NZP] compounds was modified in the present study by replacing these costly raw materials with less-expensive oxides. The reactivity of different combinations of raw materials also is discussed.
AB - Ca0.5Sr0.5Zr4P6O24 and Ba1.25Zr4P5.5Si0.5O24 compositions, which belong to the [NZP] family of low-thermal-expansion materials, were synthesized by the combustion reaction method using urea as a fuel and NH4NO3 as an oxidizer. The combustion method is a highly exothermic reaction often referred to as self-propagating high-temperature synthesis. The raw materials used were metal zirconates and fine ZrO2 powders. An earlier-described combustion method using metal nitrates, zirconium oxynitrate, and ammonium dihydrophosphate to synthesize [NZP] compounds was modified in the present study by replacing these costly raw materials with less-expensive oxides. The reactivity of different combinations of raw materials also is discussed.
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U2 - 10.1111/j.1151-2916.1998.tb02541.x
DO - 10.1111/j.1151-2916.1998.tb02541.x
M3 - Article
AN - SCOPUS:0032115012
VL - 81
SP - 1729
EP - 1735
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
SN - 0002-7820
IS - 7
ER -