Economical Method for Synthesis A Nanocrystalline Chromia Doped Alumina Based Aluminum Foil Waste

Document Type : Original research papers

Authors

1 Refractory and Ceramic Materials Division (RCMD), Central Metallurgical R&D Institute, P.O. 87 Helwan, 11421 Cairo, Egypt.

2 Chemistry Department, Faculty of Science, Helwan University

Abstract

This study aims to synthesize a nanocrystalline alumina doped with chromia by using aluminum foil waste as a source of alumina and chromium nitrate non-hydrate as a source of chromia. Chromia doped alumina was prepared by co-precipitation method and fired at different temperatures. The co-precipitated powder formed thereby has been examined by XRD, FTIR and TEM techniques. X-Ray diffraction patterns show a good crystalline of the powder with very sharp and neat peaks at high temperatures more than 1000°C. The results of FTIR analysis confirmed the getting of solid solution of alumina chromia. TEM photographs show the good distribution of the particles, which have an average particle size of 1-3 nm at low temperature.
 

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The Bulletin Tabbin Institute for Metallurgical Studies (TIMS)
Volume 106, Issue 1
September 2017
Pages 15-23

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