Synthesis of Aluminum 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 preco...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 1993-04, Vol.76 (4), p.987-992
Main Authors: Xiao, Tongsan D., Gonsalves, Kenneth E., Strutt, Peter R.
Format: Article
Language:English
Subjects:
360602 - Other Materials- Structure & Phase Studies
400201 - Chemical & Physicochemical Properties
ALUMINIUM CHLORIDES
ALUMINIUM COMPOUNDS
ALUMINIUM NITRIDES
AMIDES
AMMONOLYSIS
AQUEOUS SOLUTIONS
BORIC ACID
BORON COMPOUNDS
BORON NITRIDES
CARBONIC ACID DERIVATIVES
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COHERENT SCATTERING
COLLOIDS
COMPOSITE MATERIALS
DATA
DECOMPOSITION
DIFFRACTION
DISPERSIONS
ELECTRON MICROSCOPY
EXPERIMENTAL DATA
FOURIER TRANSFORMATION
GELS
HALIDES
HALOGEN COMPOUNDS
HEAT TREATMENTS
HYDROGEN COMPOUNDS
INFORMATION
INFRARED SPECTRA
INORGANIC ACIDS
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
INTEGRAL TRANSFORMATIONS
MATERIALS
MATERIALS SCIENCE
MICROSCOPY
MICROSTRUCTURE
MIXTURES
NITRIDES
NITROGEN COMPOUNDS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PNICTIDES
SCANNING ELECTRON MICROSCOPY
SCATTERING
SOLUTIONS
SOLVOLYSIS
SPECTRA
SYNTHESIS
TRANSFORMATIONS
UREA
X-RAY DIFFRACTION
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Description
Summary: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 structures.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.1993.tb05323.x