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3. Glass-ceramics production
Glass-ceramics are generally produced in three stages:
choice of glass composition to obtain the desired crystalline phase ;
synthesis of parent glass using a melting process (+ tempering if necessary), followed by shaping (mold);
glass crystallization, the ceramization heat treatment will be chosen according to the crystallization mechanism involved and the desired microstructure.
3.1 Choice of glass composition
The choice of glass composition is an important step in the design of a glass-ceramic: the composition must have the capacity to lead to vitrification, and it also determines the nature of the future crystalline phase(s),...
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