(After Taub et al – 1981)

1. Interstitialcy Theory of Liquids and Glasses A.V. Granato, University of Illinois, NSF DMR 0138488 The Search for the Kauzman Pseudo-Critical Temperature, Tk • Some time ago Taub and associates discovered a simple linear relationship between the metallic glass viscosity, h, and time (see Fig.) • h =h0 +h1(T)t where h1 decreases with T • The Interstitialcy Theory of Condensed Matter (ITCM) not only explains this characteristic, universal behavior, but also predicts a discontinuity in h1(T) at Tk. Although the effects are small the consequences are not. • If Tk exists there is • No equilibrium liquid state < Tk • No Kauzman paradox • No “Ideal Glass” • We will establish the existence of Tk using shear modulus data – inherently more accurate than those from viscosity measurements. Phys Rev Lett, 93, 155502-1, (2004) (After Taub et al – 1981)

2. Interstitialcy Theory of Liquids and Glasses A.V. Granato, University of Illinois, NSF DMR 0138488 Societal Impact: Education: • One Visiting Scientist • D.M. Joncich , PhD (part time) • Two Visiting Physics Professors • V.A. Khonik, PhD DS (part time) • B. Igarashi, PhD (part time) • Two REU students • A. Karmis (low-T thermal conductivity) • A. Pompe (high-T shear modulus) • Two Undergraduate researchers • A. Niemerg (defect visualization) • T. Lim (computer support) • Metallic glasses hold great potential for the future. These amorphous materials are hard, corrosion-resistant, ductile, and twice as strong as conventional alloys. In addition, they can be produced in molds – a process which dramatically reduces material waste and adverse environmental impact during fabrication. • Current applications include low-loss transformers, fiber optics, high-performance specialty coatings, solar cells, and materials for radioactive waste storage. • The Interstitialcy Theory of Condensed Matter provides the only fundamental microscopic model for the properties of these glasses.