Development of hafnium-based bulk metallic glasses with large supercooled liquid regions

J. L. Uriarte, N. Nikolov, A. R. Yavari, Á Révész, M. D. Baró

Research output: Contribution to journalConference article

5 Citations (Scopus)

Abstract

New multicomponent Hf-based bulk metallic glasses have been developed starting from a Hf-rich Hf-Cu-Ni-Al alloy containing Cu, Ni and Al in proportions near those in well known Zr-Cu-Ni-Al BMGs. In order to increase the glass forming ability and the stability of the glassy phase, selected elements with negative heats and volumes of mixing ΔHmix and ΔVmix respectively were added. The selective additions depress the liquidus temperature as measured by differential thermal analysis (DTA) and increase the width of the supercooled liquid region, ΔTx=T x-Tg between glass transition (Tg) and crystallization (Tx) temperatures.

Original languageEnglish
Pages (from-to)115-118
Number of pages4
JournalJournal of Metastable and Nanocrystalline Materials
Volume15-16
DOIs
Publication statusPublished - Jan 1 2003
EventProceedings of the 9th International Symposium on Metastable Mechanically Alloyed and Nanocrystalline Materials (ISMANAM-2002) - Seoul, Korea, Republic of
Duration: Sep 8 2002Sep 12 2002

Keywords

  • Bulk Metallic Glass
  • Copper Mold Injection Casting
  • Hafnium-Based

ASJC Scopus subject areas

  • Materials Science (miscellaneous)
  • Materials Science(all)
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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