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Title: Synthesis of aluminium nitride/boron nitride composite materials

Aluminum nitride/boron nitride composite was synthesized by using boric acid, urea, and aluminum chloride (or aluminum lactate) as the starting compounds. The starting materials were dissolved in water and mixed homogeneously. Ammonolysis of this aqueous solution resulted in the formation of a precomposite gel, which converted into the aluminum nitride/boron nitride composite on further heat treatment. Characterization of both the precomposite and the composite powders included powder X-ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscopy. Analysis of the composite revealed that the aluminum nitride phase had a hexagonal structure, and the boron nitride phase a turbostratic structure.
Authors:
 [1] ;  [2] ;  [3]
  1. (Univ. of Connecticut, Storrs, CT (United States). Polymer Science Program and Dept. of Chemistry)
  2. (Univ. of Connecticut, Storrs, CT (United States). Polymer Science Program and Dept. of Chemistry Univ. of Connecticut, Storrs, CT (United States). Dept. of Chemistry)
  3. (Univ. of Connecticut, Storrs, CT (United States). Dept. of Metallurgy)
Publication Date:
OSTI Identifier:
6152920
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of the American Ceramic Society; (United States); Journal Volume: 76:4
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; ALUMINIUM CHLORIDES; AMMONOLYSIS; ALUMINIUM NITRIDES; MICROSTRUCTURE; SYNTHESIS; BORIC ACID; BORON NITRIDES; COMPOSITE MATERIALS; UREA; AQUEOUS SOLUTIONS; EXPERIMENTAL DATA; FOURIER TRANSFORMATION; GELS; HEAT TREATMENTS; INFRARED SPECTRA; PHASE TRANSFORMATIONS; SCANNING ELECTRON MICROSCOPY; X-RAY DIFFRACTION; ALUMINIUM COMPOUNDS; AMIDES; BORON COMPOUNDS; CARBONIC ACID DERIVATIVES; CHEMICAL REACTIONS; CHLORIDES; CHLORINE COMPOUNDS; COHERENT SCATTERING; COLLOIDS; DATA; DECOMPOSITION; DIFFRACTION; DISPERSIONS; ELECTRON MICROSCOPY; HALIDES; HALOGEN COMPOUNDS; HYDROGEN COMPOUNDS; INFORMATION; INORGANIC ACIDS; INTEGRAL TRANSFORMATIONS; MATERIALS; MICROSCOPY; MIXTURES; NITRIDES; NITROGEN COMPOUNDS; NUMERICAL DATA; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; PNICTIDES; SCATTERING; SOLUTIONS; SOLVOLYSIS; SPECTRA; TRANSFORMATIONS 400201* -- Chemical & Physicochemical Properties; 360602 -- Other Materials-- Structure & Phase Studies