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Nanostructures of the Product Sequence in the Decomposition of Mixed Rare Earth Hydroxycarbonate Colloidal Particles

Published online by Cambridge University Press:  15 February 2011

Z. C. kang ,
M. J. Mckelvy  and
L. Eyring
Z. C. kang
Affiliation:
Department of Chemistry, Arizona State University, Tempe, AZ 85287 Center for Solid State ScienceArizona State University, Tempe, AZ 85287
M. J. Mckelvy
Affiliation:
Center for Solid State ScienceArizona State University, Tempe, AZ 85287
L. Eyring
Affiliation:
Department of Chemistry, Arizona State University, Tempe, AZ 85287 Center for Solid State ScienceArizona State University, Tempe, AZ 85287
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Abstract

The decomposition of colloidal spheres of mixed rare earth hydroxycarbonate to the oxide has been studied by three methods. a) The spheres are treated in a thermal analysis apparatus up to 1100°C and afterward successive reruns were made and specimens cooled rapidly at temperatures where intermediate or final products are formed. X-ray diffraction patterns and HREM studies were made of each sample thus produced. b) The spheres were heated to 450°C in the specimen chamber of a mass spectrometer and the gaseous decomposition products were monitored continuously. c) The colloidal spheres were introduced into the electron microscope and the decomposition followed at high resolution as evolution to the oxide was induced by the electron beam. The results are compared and contrasted.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 272: Symposium O – Chemical Processes in Inorganic Materials: Metal and Semiconductor Clusters , 1992 , 59
Copyright
Copyright © Materials Research Society 1992

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References

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