Solid-solid phase transitions via melting in metals

Stefan Pogatscher, D. Leutenegger, Jürgen E. K. Schawe, Peter Uggowitzer, Jörg F. Löffler

Research output: Contribution to journalArticleResearchpeer-review

46 Citations (Scopus)

Abstract

Observing solid-solid phase transitions in-situ with sufficient temporal and spatial resolution is a great challenge, and is often only possible via computer simulations or in model systems. Recently, a study of polymeric colloidal particles, where the particles mimic atoms, revealed an intermediate liquid state in the transition from one solid to another. While not yet observed there, this finding suggests that such phenomena may also occur in metals and alloys. Here we present experimental evidence for a solid-solid transition via the formation of a metastable liquid in a 'real' atomic system. We observe this transition in a bulk glass-forming metallic system in-situ using fast differential scanning calorimetry. We investigate the corresponding transformation kinetics and discuss the underlying thermodynamics. The mechanism is likely to be a feature of many metallic glasses and metals in general, and may provide further insight into phase transition theory.
Original languageEnglish
Article number11113
Number of pages6
JournalNature Communications
Volume7.2016
DOIs
Publication statusPublished - 22 Apr 2016

Cite this