Combustion Synthesis of Metal Chromite Powders
Authors:
- S. Sundar ManoharanSMS. Sundar Manoharan
- Kashinath C. PatilKPKashinath C. Patil
- 1 April 1992
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 75 (4) , 1012-1015
Abstract
Fine‐particle metal chromites (MCr2O4, where M = Mg, Ca, Mn, Fe, Co, Ni, Cu, and Zn) have been prepared by the combustion of aqueous solutions containing the respective metal nitrate, chromium(III) nitrate, and urea in stoichiometric amounts. The mixtures, when rapidly heated to 350°C, ignite and yield voluminous chromites with surface areas ranging from 5 to 25 m2/g. MgCr2O4, sintered in air at 1500°C for 5 h, has a density of 4.0 g/cm3.Keywords
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