Premium
Ultrafine Spinel Powders by Flame Spray Pyrolysis of a Magnesium Aluminum Double Alkoxide
Author(s) -
Bickmore Clint R.,
Waldner Kurt F.,
Treadwell David R.,
Laine Richard M.
Publication year - 1996
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.1151-2916.1996.tb08608.x
Subject(s) - alkoxide , spinel , nucleation , pyrolysis , materials science , magnesium , aluminium , chemical engineering , thermal spraying , particle size , particle (ecology) , spray pyrolysis , ultrafine particle , oxide , inorganic chemistry , mineralogy , metallurgy , chemistry , organic chemistry , nanotechnology , thin film , catalysis , coating , oceanography , geology , engineering
Ultrafine crystalline spinel powder has been prepared using flame spray pyrolysis of alcoholic solutions of a novel double alkoxide precursor. The particles produced are spherical, dense, single crystals with diameters of 10–100 nm and specific surface areas ranging from 40 to 60 m 2 /g. Powder production rates of 50–100 g/h are achieved using a bench‐top apparatus. Particle formation appears to occur by rapid oxidation of the organic ligands followed by nucleation and growth from oxide species.