Instantaneous nano-order fragmentation in mullite ceramics triggered by a shock-induced phase transition

Toshiyuki Atou, Nobuaki Kawai, Shun Ito, Kunio Yubuta, Masae Kikuchi

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Mullite, a conventional refractory material, was observed to exhibit a peculiar nano-order fragmentation accompanying a phase transition induced by a shock wave. We propose a mechanism for this nanofragmentation, based on a comparative study of mullite-related materials. The microtextures of the mullite-related materials were affected by their initial crystal structure and chemical composition, indicating that oxygen vacancies in the crystal structure play an important role in the nanofragmentation. The results of the present study will help enable the deliberate control of the physical and mechanical properties of materials during high-velocity impact.

Original languageEnglish
Article number093523
JournalJournal of Applied Physics
Volume108
Issue number9
DOIs
Publication statusPublished - 2010 Nov 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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