Structure/Reactivity Relationships of Polysilazane Preceramics

Abstract

The structure/reactivity relationships of the polysilazanes - (H2SiNMe(x-) and -(MeHSiNH(x-) were examined to develop an understanding of the effects of structure on the composition of the ceramic product produced when these preceramic polysilazanes are pyrolyzed at 5 C/min under nitrogen to 900 C. The evolution of the precursors into amorphous ceramic mixtures was followed by thermogravimetric analysis, diffuse reflectance FTIR, and chemical analysis of intermediates formed during the transformation process. This paper will show how ceramic product selectivity is controlled by molecular structure. (AW)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1988
Accession Number
ADA212028

Entities

People

  • Gilbert A. Balavoine
  • Jeffrey A. Rahn
  • Kay A. Youngdahl
  • Richard A. Kennish
  • Richard M Laine

Organizations

  • University of Washington

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Body Weight
  • Ceramic Coatings
  • Ceramic Materials
  • Chemical Analysis
  • Chemistry
  • Materials
  • Materials Engineering
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Metal Matrix Composites
  • Molecular Weight
  • Oxidation Resistance
  • Pyrolysis
  • Silicon Carbide

Fields of Study

  • Materials science

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Polymer Science and Technology
  • Powder metallurgy of Titanium alloys.