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Sintered Glass–Ceramics and Glass–Ceramic Matrix Composites from CRT Panel Glass
Author(s) -
Bernardo E.,
Andreola F.,
Barbieri L.,
Lancellotti I.
Publication year - 2005
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2005.00380.x
Subject(s) - materials science , composite material , glass ceramic , ceramic , sintering , fracture toughness , indentation hardness , flexural strength , crystallization , nepheline , elastic modulus , microstructure , mineralogy , chemistry , organic chemistry
Sintering with simultaneous crystallization of powdered glass represents an interesting processing route for glass–ceramics, especially originating from wastes. Highly dense glass–ceramic samples may be obtained from a simple and short treatment at a relatively low temperature. In addition, glass–ceramic matrix composites may be obtained by mixing glass with suitable reinforcements. In this work sintered nepheline glass–ceramics, based on panel glass from cathode ray tubes, are illustrated. A limited addition of Al 2 O 3 platelets caused a significant improvement in the mechanical properties (elastic modulus, bending strength, microhardness, fracture toughness), already remarkable for the un‐reinforced glass–ceramic, compared with traditional nepheline glass–ceramics.