Nucleation, Growth and Crystallization in Glasses—Fundamentals and Applications
May 21-22, 2016 | Saturday 1-5 p.m; Sunday 8:00 a.m. – Noon | Madison Concourse Hotel
Instructor: Edgar Zanotto, Center for Research, Technology and Education in Vitreous Materials, Federal University of São Carlos, Brazil
Learn the popular predictive theories of nucleation, growth, and overall crystallization
After completing the course and homework, participants will learn how to apply these theories to avoid spontaneous devitrification to produce new glasses, as well as start designing some glass-ceramics having simple nano or microstructures.
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On or Before
April 22, 2016
April 22, 2016
|Who should attend
This course is aimed at those interested in an updated, high level, introduction to the intricate (dynamic and thermodynamic) processes that control crystal nucleation, growth and overall crystallization of glasses, including industry professionals, post-graduates, and undergraduate students. This knowledge is key to the production of novel glasses and for the development of new or improved glass-ceramics. It is recommended that the participants have a significant background in materials science or engineering, chemistry or physics. Previous knowledge and experience in glass science would be beneficial.
- Relevance of crystal nucleation, crystal growth and overall crystallization for the understanding of the vitreous state, as well as for glass and glass-ceramic technology.
- Crystal nucleation in glass-forming liquids: phenomenology, experimental methods, homogeneous and heterogeneous nucleation, surface crystallization, non-steady state effects, classical nucleation theory (CNT), experimental tests of CNT, metastable phase formation, temperature and size dependent surface energy, the courtyard effect, the effect of elastic stresses, maximum nucleation rates (Imax) versus glass transition temperature (Tg).
- Crystal growth in glass-forming liquids: growth models, experimental methods (OM, DSC, etc.), tests with several glasses, growth rate maxima, Umax vs. Tgr, the breakdown of the Stokes-Einstein-Eyring equation.
- Overall Crystallization: JMAK (Johnson-Mehl-Avrami-Kolmogorov) – model, experimental methods, tests with some glasses.
- Glass-ceramics (GC): Historical development, existing glass-ceramics, new GC that are yet in the development stage, such as: large grain transparent GC, bioactive GC, sintered GC, PTRG and Laser crystallized GC
Micrograph gallery: Chemical and physical phenomena revealed by beautiful micrographs of crystals in glass.
Edgar Dutra Zanotto is professor of materials science and engineering at the Federal University of São Carlos (UFSCar) in Brazil, and director of the Center for Research, Technology and Education in Vitreous Materials (CeRTEV). Zanotto chaired 6 of the most important glass congresses and delivered more than 300 conference presentations, which include more than 100 invited and 13 plenary talks. He has received 28 awards including five glass research awards: The Foster Research Prize by the Sheffield University Senate, The Brazilian Ceramic Society (best paper) award, the Gottardi Prize by the ICG, the Zachariasen Award by the J. Non-crystalline Solids, and the Morey Award by The American Ceramic Society’s Glass and Optical Materials Division (GOMD). He is also an Editor of the Journal of Non-Crystalline Solids. Zanotto’s studies includes fundamental research on the crystallization kinetics and properties of glasses and glass-ceramics. His research work encompass rigorous tests, improvement or development of nucleation and growth models for glasses, the effects of liquid phase separation on nucleation, surface crystallization kinetics, overall crystallization, glass stability versus glass forming ability, correlations between molecular structure and nucleation mechanism, sintering with simultaneous crystallization, diffusion processes controlling crystallization, as well as mechanical, rheological, thermal and biochemical properties of glasses and glass-ceramics. The technological branch of Zanotto’s team include projects in partnership with several companies over the last three decades. He is also interested in the development or improvement of glass-ceramics with improved or new functionalities. He has published more than 200 scientific articles, 20 book chapters and 2 books on glass science and technology.
ACerS reserves the right to cancel a course up to 4 weeks before the scheduled presentation date. Please contact ACerS customer service at 1-866-721-3322 or 1-240-646-7054 to confirm that the course is happening before purchasing your airline tickets. ACerS is not responsible for the purchase of non-refundable airline tickets or the cancellation/change fees associated with canceling a flight.