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S1: Glass Science


2012 Glass & Optical Materials Division Spring Meeting



Session 1: Glass Structure and Properties

Organizers: Sabyasachi Sen, University of California-Davis | Randall E. Youngman, Corning Incorporated


This session will focus on studies of glass structure and the structural origin of macroscopic properties, covering both oxide and non-oxide systems. Contributions will feature short- and intermediate-range structure, as obtained from spectroscopy and diffraction, as well as efforts to understand the impact of thermal history on glass structure and properties.


Session 2: Non-oxide Glasses

Organizers: Andriy Kovalskyy, Austin Peay State University | J. David Musgraves, Clemson University


The session covers a wide range of topics on fundamentals and applications of non-oxide glasses, such as chalcogenides, fluorides, borides and others. Scientific areas of interest include, basic properties (optical, electrical, thermal), advanced structural studies (EXAFS, XPS, vibrational methods, NMR, positron annihilation etc.), photo- and radiationinduced effects, temperature-induced phenomena, modeling, aging and relaxation in non-oxide glass networks. Contributions in emerging practical applications of non-oxide glasses in optics/photonics, phasechange and other non-volatile memories, nanotechnology, biomedical
field, energy, sensors, radiation dosimetry, lithography are welcomed.


Session 3: Computer Simulation and Modeling of Glasses
Organizer: Jincheng Du, University of North Texas


This session focuses on recent progresses of atomistic scale simulations of glasses to elucidate their structure and structure-property relationships through either classical or first principle based approaches.
It covers development of empirical potential models to better describe silicate, borate, aluminate, phosphate or mixed former systems. Development of potentials for non-oxide based systems, interfaces of glass with other materials, methods to improve agreement with experimental structural data, techniques to calculate optical properties, thermomechanial responses, and diffusion mechanisms will be covered. The session provides an opportunity to discuss the challenges and potential solutions of these challenges of atomistic simulations of glasses.


Session 4: Glass Transition and Relaxation
Organizer: Ulrich Fotheringham, Schott AG, Inc.


A fundamental understanding of glass transition and relaxation is essential for enabling future breakthroughs in glass science and technology. This session will cover the thermodynamics and dynamics of glass transition and relaxation phenomena from both theoretical and experimental perspectives, with particular emphasis on recent developments.


Session 5: Glass Corrosion and Surface Science
Organizer: Nathan P. Mellott, Alfred University


Glass is currently a component of, or a candidate for, advanced material systems utilized in a variety of technological applications including photovoltaic modules, biomedical devices, and nuclear waste storage.
Optimized performance in established applications and successful integration into new market products require an improved fundamental understanding of both glass corrosion and surfaces. This session will address a variety of relevant aspects of glass corrosion and surfaces including atomic to macroscale structural controls on corrosion, surface structure and reactivity, coupling of theoretical and experimental studies of corrosion, and the effects of glass corrosion on properties will be addressed.


Session 6: Topological Constraints and Rigidity: Theory and Experiment
Organizer: Pierre Lucas, University of Arizona


The topological description of amorphous structures has been an active subject of studies since the development of the rigidity percolation theory by Phillips and Thorpe more than three decades ago. Topological constraints theory describes how microscopic bond arrangements govern the thermal, mechanical and transport properties of glasses at the macroscopic level. Topological theories have been successfully applied to oxide glasses and advances such as temperature dependent constraints have been brought out. This session will focus on recent developments of both theoretical and experimental aspects of the topological description of glasses. Contributions covering modeling as well as measurements of properties and structure are encouraged.


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