Formation of monatomic metallic glasses through ultrafast liquid quenching

It has long been conjectured that any metallic liquid can be vitrified into a glassy state provided that the cooling rate is sufficiently high. Experimentally, however, vitrification of single-element metallic liquids is notoriously difficult. True laboratory demonstration of the formation of monatomic metallic glass has been lacking. Here we report an experimental approach to the vitrification of monatomic metallic liquids by achieving an unprecedentedly high liquid-quenching rate of 1014 K s−1. Under such a high cooling rate, melts of pure refractory body-centred cubic (bcc) metals, such as liquid tantalum and vanadium, are successfully vitrified to form metallic glasses suitable for property interrogations. Combining in situ transmission electron microscopy observation and atoms-to-continuum modelling, we investigated the formation condition and thermal stability of the monatomic metallic glasses as obtained. The availability of monatomic metallic glasses, being the simplest glass formers, offers unique possibilities for studying the structure and property relationships of glasses. Our technique also shows great control over the reversible vitrification–crystallization processes, suggesting its potential in micro-electromechanical applications. The ultrahigh cooling rate, approaching the highest liquid-quenching rate attainable in the experiment, makes it possible to explore the fast kinetics and structural behaviour of supercooled metallic liquids within the nanosecond to picosecond regimes.

[1]  David Turnbull,et al.  Molecular Transport in Liquids and Glasses , 1959 .

[2]  Frans Spaepen,et al.  Fe‐B glasses formed by picosecond pulsed laser quenching , 1982 .

[3]  K. Suslick,et al.  Sonochemical synthesis of amorphous iron , 1991, Nature.

[4]  G. Kresse,et al.  From ultrasoft pseudopotentials to the projector augmented-wave method , 1999 .

[5]  Blöchl,et al.  Projector augmented-wave method. , 1994, Physical review. B, Condensed matter.

[6]  F. Stillinger,et al.  Packing Structures and Transitions in Liquids and Solids , 1984, Science.

[7]  Yiying Wu,et al.  Thermal conductivity of Si/SiGe superlattice nanowires , 2003 .

[8]  Peter Harrowell,et al.  Anomalously slow crystal growth of the glass-forming alloy CuZr. , 2013, Nature materials.

[9]  P. L. Lee,et al.  Polyamorphism in a metallic glass. , 2007, Nature materials.

[10]  D. Turnbull.  Under what conditions can a glass be formed , 1969 .

[11]  A. Tari,et al.  The Specific heat of matter at low temperatures , 2003 .

[12]  S. Phillpot,et al.  Comparison of atomic-level simulation methods for computing thermal conductivity , 2002 .

[13]  Hong‐Ming Lin,et al.  Amorphous solidification of pure metals in submicron spheres , 1989 .

[14]  Allen,et al.  Theory of thermal relaxation of electrons in metals. , 1987, Physical review letters.

[15]  J. Quinn,et al.  Structural investigations of amorphous transition element films , 1978 .

[16]  Michele Parrinello,et al.  Freezing of a Lennard-Jones fluid: from nucleation to spinodal regime. , 2006, Physical review letters.

[17]  T. Ichikawa.  The assembly of hard spheres as a structure model of amorphous iron , 1975 .

[18]  M. Baskes,et al.  Embedded-atom method: Derivation and application to impurities, surfaces, and other defects in metals , 1984 .

[19]  Dzugutov.  Glass formation in a simple monatomic liquid with icosahedral inherent local order. , 1992, Physical review. A, Atomic, molecular, and optical physics.

[20]  J. Wright,et al.  Structural investigations of amorphous transition element films I. Scanning electron diffraction study of cobalt , 1974 .

[21]  P Jost,et al.  Disorder-induced localization in crystalline phase-change materials. , 2011, Nature materials.

[22]  Zhibin Lin,et al.  Electron-phonon coupling and electron heat capacity of metals under conditions of strong electron-phonon nonequilibrium , 2008 .

[23]  P. Duwez,et al.  Non-crystalline Structure in Solidified Gold–Silicon Alloys , 1960, Nature.

[24]  J. B. Hull,et al.  Amorphous nickel produced by splat quenching , 1973 .

[25]  E. Fromm,et al.  Absorption of nitrogen and oxygen by vapour-deposited tantalum films , 1975 .

[26]  R. Egerton,et al.  Electron Energy-Loss Spectroscopy in the Electron Microscope , 1995, Springer US.

[27]  V. D. Frechette,et al.  Non-crystalline solids , 1960 .

[28]  T. W. Haas,et al.  Adsorption on Niobium (110), Tantalum (110), and Vanadium (110) Surfaces , 1967 .

[29]  William L. Johnson,et al.  Thermodynamic and kinetic aspects of the crystal to glass transformation in metallic materials , 1986 .

[30]  M. Kramer,et al.  Highly optimized embedded-atom-method potentials for fourteen fcc metals , 2011 .

[31]  Jan Schroers,et al.  Combinatorial development of bulk metallic glasses. , 2014, Nature materials.

[32]  P. Brommer,et al.  Potfit: effective potentials from ab initio data , 2007, 0704.0185.

[33]  S. Fujime.  Electron Diffraction at Low Temperature II. Radial Distribution Analysis of Metastable Structure of Metal Films Prepa ed by Low Temperature Condensation , 1966 .

[34]  T. Ichikawa.  Electron diffraction study of the local atomic arrangement in amorphous iron and nickel films , 1973 .

[35]  R. Yamamoto,et al.  Structural Relaxation of the Dense Random Packing Model for Amorphous Iron , 1978, January 16.

[36]  M. Wuttig,et al.  Phase-change materials for rewriteable data storage. , 2007, Nature materials.

[37]  Hafner,et al.  Ab initio molecular dynamics for liquid metals. , 1995, Physical review. B, Condensed matter.

[38]  Weihua Wang,et al.  Bulk metallic glasses , 2004 .

[39]  W. Johnson.  Fundamental Aspects of Bulk Metallic Glass Formation in Multicomponent Alloys , 1996 .

[40]  P. Steinhardt,et al.  Bond-orientational order in liquids and glasses , 1983 .

[41]  S. Sastry,et al.  Vitrification of a monatomic metallic liquid , 2007, Nature.

[42]  R. Jones,et al.  Electron transport enhanced molecular dynamics for metals and semi‐metals , 2010 .

[43]  E. Ma,et al.  Atomic level structure in multicomponent bulk metallic glass. , 2009, Physical review letters.

[44]  P. Liley,et al.  Thermal Conductivity of the Elements , 1972 .

[45]  W. E. Danforth,et al.  LEED Observations of Epitaxially Grown Thorium on (100) Tantalum , 1968 .

[46]  James R. Morris,et al.  Quantitative parameter-free prediction of simulated crystal-nucleation times. , 2006, Physical review letters.

[47]  D. Nelson,et al.  Theory of the Structure Factor of Metallic Glasses , 1984 .

[48]  A L Greer.  Metallic glasses. , 1995, Science.

[49]  J. Q. Broughton,et al.  Crystallization Rates of a Lennard-Jones Liquid , 1982 .

[50]  B. Hopkins,et al.  A rheed study of the adsorption of oxygen, hydrogen, nitrogen and water vapour on the (100) face of tantalum , 1971 .

[51]  J. Vlassak,et al.  Combinatorial nanocalorimetry , 2010 .