Application of high-pressure torsion for consolidation of ceramic powders

Kaveh Edalati, Zenji Horita

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

Alumina (α-Al2O3) powders were successfully consolidated by application of high-pressure torsion (HPT) at ambient temperature and by a subsequent annealing process. Introduction of strain by HPT was confirmed by peak broadening in X-ray diffraction analysis. It was shown that consolidation was greater, giving rise to increased hardness with increasing imposed strain, annealing temperature and annealing time. Scanning electron microscopy showed that consolidation occurred at lower temperatures due to the presence of strain.

Original languageEnglish
Pages (from-to)174-177
Number of pages4
JournalScripta Materialia
Volume63
Issue number2
DOIs
Publication statusPublished - Jul 1 2010

Fingerprint

consolidation
Consolidation
Torsional stress
Powders
torsion
Annealing
ceramics
annealing
Aluminum Oxide
Temperature
X ray diffraction analysis
ambient temperature
Alumina
hardness
aluminum oxides
Hardness
Scanning electron microscopy
scanning electron microscopy
diffraction
x rays

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Application of high-pressure torsion for consolidation of ceramic powders. / Edalati, Kaveh; Horita, Zenji.

In: Scripta Materialia, Vol. 63, No. 2, 01.07.2010, p. 174-177.

Research output: Contribution to journalArticle

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