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Updated definition of glass-ceramics

2018; Elsevier BV; Volume: 501; Linguagem: Inglês

10.1016/j.jnoncrysol.2018.01.033

1873-4812

Joachim Deubener, Mathieu Allix, Mark J. Davis, Alicia Durán, Thomas Höche, Tsuyoshi Honma, Takayuki Komatsu, S. Krüger, Ina Mitra, Ralf Müller, Shingo Nakane, María J. Pascual, Jürn W. P. Schmelzer, Edgar D. Zanotto, Shifeng Zhou,

Nuclear materials and radiation effects

Glass-ceramics are noted for their unusual combination of properties and manifold commercialized products for consumer and specialized markets. Evolution of novel glass and ceramic processing routes, a plethora of new compositions, and unique exotic nano- and microstructures over the past 60 years led us to review the definition of glass-ceramics. Well-established and emerging processing methods, such as co-firing, additive manufacturing, and laser patterning are analyzed concerning the core requirements of processing glass-ceramics and the performance of the final products. In this communication, we propose a revised, updated definition of glass-ceramics, which reads “Glass-ceramics are inorganic, non-metallic materials prepared by controlled crystallization of glasses via different processing methods. They contain at least one type of functional crystalline phase and a residual glass. The volume fraction crystallized may vary from ppm to almost 100%”.