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Glass Crystallization Research – A 36-Year Retrospective. Part II, Methods of Study and Glass-Ceramics


  • Edgar D. Zanotto

    Corresponding author
    • Department of Materials Engineering (DEMa), Vitreous Materials Laboratory (LaMaV), Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
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  • Article based on the G. W. Morey award talk delivered at the Glass and Optical Materials Division meeting, ACerS, Saint Louis, MO, USA, May 2011.


Most of our original studies on the fundamental scientific aspects of glass crystallization were reviewed in Part I of this article. In this part, we describe some relevant methods we developed to study glass crystallization and review a number of systematic studies that we conducted to develop, improve, or characterize some types of glass-ceramics, such as bioactive glass-ceramics; photo-thermo-refractive glasses (or glass-ceramics because the “active” components are sodium fluoride nanocrystals embedded in a glass matrix); new glass-ceramics derived from blast furnace and steel-making slags (hard materials for architecture and construction); sintered glass-ceramics that emulate expensive stones such as marble and granite; and the first large-grain, highly crystalline optically transparent glass-ceramic.