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Low‐Temperature Chemical Synthesis of Nanocrystalline MgAl 2 O 4 Spinel Powder
Author(s) -
Pati Ranjan K.,
Pramanik Panchanan
Publication year - 2000
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2000.tb01473.x
Subject(s) - nanocrystalline material , spinel , materials science , crystallite , thermogravimetric analysis , triethanolamine , particle size , differential thermal analysis , inorganic chemistry , transmission electron microscopy , chemical engineering , analytical chemistry (journal) , nuclear chemistry , mineralogy , metallurgy , chemistry , nanotechnology , organic chemistry , physics , optics , diffraction , engineering
Nanocrystalline MgAl 2 O 4 spinel powder was synthesized by pyrolysis of complex compounds of aluminum and magnesium with triethanolamine (TEA). The soluble metal ion–TEA complexes formed the precursor material on complete dehydration of the complexes of aluminum–TEA and magnesium–TEA. Single‐phase MgAl 2 O 4 spinel powder resulted after heat treatment of the precursor material at 675°C. The precursor and the heat‐treated powders were characterized by X‐ray diffractometry (XRD), differential thermal and thermogravimetric analysis, and transmission electron microscopy (TEM). The average crystallite size as measured from the X‐ray line broadening was around 14 nm and the average particle size from TEM studies was around 20 nm.