Formation of TiC and SiC refractory compounds by mechanical alloying

M. Sherif El-Eskandarany, Toyohiko J. Konno, Kenji Sumiyama, Kenji Suzuki

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Mechanical alloying via high energy ball-mill operated at room temperature has been used for preparing TiC and SiC compounds, starting from elemental Ti, Si and graphite powders. X-ray diffraction, transmission electron microscope, scanning electron microscope and infrared absorption have been used to follow the progress of the mechanical reactions between the reactant materials of Ti-C and Si-C, binary systems. A complete single phase of NaCl-type structure of Ti44C56 compound is yielded after 20 ks of milling. The lattice parameter (a0) of this compound was calculated to be 0.4326 nm. This end-product of Ti44C56 consists of fine grains of about 5 nm in diameter and possesses homogeneous powders with an average particle diameter of less than 0.5 μm in diameter. In Si-C binary system, a complete stoichiometric β-SiC phase was obtained after 1080 ks of milling. The a0 for final-product of β-SiC powders was calculated to 0.4357 nm. The existence of transverse optical (TO) and longitudinal optical (LO)-like phonon modes for β-SiC compound are observed. The internal structure of the particles are marked by fine cell-like features of about 6 nm.

Original languageEnglish
Pages (from-to)579-583
Number of pages5
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume43
Issue number5
DOIs
Publication statusPublished - 1996 May

Keywords

  • Mechanical alloying
  • Morphology
  • Silicon carbide
  • Structure
  • Titanium carbide

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

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