Sintering and crystallization of akermanite-based glass-ceramics


Akermanite-based glass-ceramics were successfully produced from the SiP2-Al2O3-B2O3-MgO-CaO-Na2O-F system via sintering and crystallization of glass-powder compacts at low temperatures between 750 and 800 degrees C. The experimental results indicated that the amount of Al2O3 in the parent glass composition is seemingly a key factor with regard to the potential of this system to crystallize into a mono-mineral akermanite glass-ceramic. The aesthetics and the mechanical, the chemical and the thermal properties of the produced glass-ceramics in conjunction with the evaluation of the economic processing route proposed qualify these glass-ceramics for further investigation as potential materials suitable for applications in restorative dentistry. (c) 2005 Elsevier B.V. All rights reserved.



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Materials Science; Physics


Ventura, JMG; Tulyaganov, DU; Agathopoulos, S; Ferreira, JMF

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