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Ultrafine Powders of Oxide and Non-Oxide Ceramic Materials and Their Sinterability

  • M. Hoch
  • K. M. Nair
Part of the Materials Science Research book series (MSR, volume 11)

Abstract

Ultrafine powders of ceramic materials have been prepared by the decomposition of organometallic complexes, 1,2 thermal decomposition, 3,4 vapor deposition or pyrolysis of inorganic polymers. 5 Processes beginning with preparation of the necessary organometallic complexes from commercially available inorganic salts (using hydrolytic methods which have been fully developed) have already been shown to have numerous advantages over other techniques in the preparation of highly pure and homogenous ceramic powders. 6,7 Thus, we have synthesized our ceramic metal oxides, 8, 9, 10 as well as our nitrides 11,12 and carbides 13 by methods along these lines. In this article we will summarize some of the general characteristics of these processes for the preparation of ultrafine (<100A) and ultra- pure (99.99%) ceramic oxides, nitrides, and carbides, among which are A1203, Y203, zyttrite, Al203-Zr02 eutectic, mullite, various spinels, AIN, amorphous Si3N4, α-Si3N4 ß’-sialon, and ß’-SiC. We will also report on the sinterability of these materials at or below 1500°C.

Keywords

Inorganic Polymer Organometallic Complex Tertiary Alcohol Ultrafine Powder Carbide Material 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1978

Authors and Affiliations

  • M. Hoch
    • 1
  • K. M. Nair
    • 1
  1. 1.University of CincinnatiCincinnatiUSA

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