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Microstructure and valence bonds of Si-B-C-N-Al powders synthesized by mechanical alloying

  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Amorphous Si-B-C-N-Al powders have been prepared by mechanical alloying (MA) technique using crystalline silicon (c-Si), hexagonal boron nitride (h-BN), graphite (C) and aluminum (Al) powders as starting materials. Microstructural characterization was carried out by X-ray diffraction (XRD), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM). The results showed that Si-B-C-N-Al powders synthesized by mechanical alloying were amorphous, no nanocrystalline structure had been detected, and every element in the Si-B-C-N-Al powders was uniformly distributed. X-ray photoelectron spectroscopy (XPS) shows that the Si-B-C-N-Al powders possessed hybridization structure of several bonds, such as Si-C, B-C-N, C-C, B-N and Al-N.

Original languageEnglish
Title of host publication2011 Chinese Materials Conference
PublisherElsevier Ltd
Pages1299-1304
Number of pages6
ISBN (Print)9781627485838
DOIs
StatePublished - 2012

Publication series

NameProcedia Engineering
Volume27
ISSN (Print)1877-7058

Keywords

  • Amorphous powders
  • Mechanical alloying
  • Microstructure
  • Valence bonds

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