Preparation and mechanical properties of dispersed-ZrN glassy composite alloys containing pores

Masashi Hasegawa, Daisuke Nagata, Takeshi Wada, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Glassy composite alloys containing dispersed ZrN particles and pores were successfully prepared for the first time by a powder compact melting and liquid quenching process using Zr-Al-Ni-Cu glassy alloy and AlN powders as the starting materials. The alloys were produced both in ribbon and rod forms by means of conventional single-roll spinning and casting techniques. The ZrN particles were of approximately micrometer sizes and synthesized by an AlN decomposition reaction. It was found that they had a regular morphology and high crystallinity, suggesting single crystals. The pores were spherical with a diameter of ∼10 μm and a porosity of about 2%. The rod alloys had a compressive fracture strength of about 2 GPa which is higher than that of the matrix of the Zr-Al-Ni-Cu glassy alloy.

Original languageEnglish
Pages (from-to)3221-3226
Number of pages6
JournalActa Materialia
Volume54
Issue number12
DOIs
Publication statusPublished - 2006 Jul 1

Keywords

  • Composite material
  • Glassy alloy
  • Mechanical properties
  • Porous alloy
  • ZrN

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

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