IMRC 2017

XXVI International Materials Research Congress

Sociedad Mexicana de Materiales

Scientific Program

Plenary Speakers

August 23, 11:30 hrs.


Prof. Alan Lindsay Greer

Head of Department of Materials
Science & Metallurgy
University of Cambridge

Biography

A. Lindsay Greer earned MA and PhD degrees at Cambridge, then undertook postdoctoral work and was Assistant Professor of Applied Physics at Harvard University before returning to a faculty position in Cambridge. He has held visiting positions at the Institut National Polytechnique de Grenoble and the Centre d'Études Nucléaires de Grenoble, and was Harrison Distinguished Visiting Professor, Department of Physics and Centre for Materials Innovation, Washington University. He holds an Advisory Professorship at Chongqing University. He is an editor of Philosophical Magazine (founded in 1798, publishing papers on the structure and properties of condensed matter). He has been awarded the Pilkington Teaching Prize of the University of Cambridge, the Light Metals and Cast Shop Technology Awards of TMS (USA), the Cook-Ablett Award, the Hume Rothery Prize and the Griffith Medal of the Institute of Materials, Minerals and Mining, the ISMANAM Senior Scientist Medal, the Honda Kotaro Memorial Medal of Tohoku University, and the Lee Hsun Lecture Award of the Chinese Academy of Sciences. He has published two books, more than 10 book chapters and more than 350 scientific papers.

Abstract

Metallic Alloys: Ways to Extend the Range of the Glassy State

Focusing on metallic systems, we consider developments in understanding and exploiting the glassy state that is formed when a liquid is cooled into a solid state without crystallizing, having in mind that: "The deepest and most interesting unsolved problem in solid state theory is probably the theory of the nature of glass and the glass transition" [1]. The metallic glasses are of particular interest for several reasons, not least their excellent mechanical properties. These lead to possible applications, but also open up the possibility of using mechanical working to change the structure and properties of glass [2], something hardly explored for conventional oxide glasses. While plastic deformation can be expected to have structural effects, it is more surprising that there can be significant effects even well within the (nominally) elastic regime [3,4]. In this talk we explore the diversity that can be achieved in the metallic glassy state, from very high energy (‘rejuvenated’) to very low energy (‘relaxed’ and even ‘ultrastable’) states [5]. We also explore the extent to which directionality (anisotropy) can be induced in metallic glasses [6]. In each case, we examine the potential applications of the properties (structural and functional) that can be induced.

[1]  P.W. Anderson, Science 267, (1995) 1615.

[2]  Y.H. Sun, A. Concustell, A.L. Greer, Nature Rev. Mater. 1, (2016) 16039.

[3]  S.V. Ketov, Y.H. Sun, S. Nachum, Z. Lu, A. Checchi, A.R. Beraldin, H.Y. Bai, W.H. Wang, D.V. Louzguine-Luzgin, M.A. Carpenter, A.L. Greer, Nature, 524, (2015) 200.

[4]  A.L. Greer, Y.H. Sun, Philos. Mag. 96, (2016) 1643.

[5]  A.L. Greer, Nature Mater. 14, (2015) 542.

[6]  Y.H. Sun, A. Concustell, M.A. Carpenter, J.C. Qiao, A.W. Rayment, A.L. Greer, Acta Mater. 112, (2016) 132.