Fibre reinforced glasses and glass-ceramics

Prewo, Karl M.

doi:10.1007/978-94-009-0817-8_10

Cited by 33 publications

(12 citation statements)

References 21 publications

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“…Transmission electron microscopy of the as-received BMAS material reveals a 'carbon-rich' interface between fibre and matrix ( Fig. 2), as previously reported for other Sic fibrelglass-ceramic matrix systems (Brennan, 19 8 6, 19 8 8;Chaim & Heuer, 1987;Cooper & Chyung, 1987;Murthy & Lewis, 1989;Murthy et al, 1989;Prewo, 1989;Lewis & Murthy, 1991). The carbon layer thickness in BMAS is 10-20 nm, which is significantly thinner than generally observed in Sic fibre-reinforced glass-ceramic materials.…”

Section: Resultssupporting

confidence: 79%

Environmental ageing effects in a silicon carbide fibre‐reinforced glass‐ceramic matrix composite

Plucknett

Sutherland

Daniel

et al. 1995

Journal of Microscopy

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Summary A silicon carbide fibre‐reinforced glass‐ceramic composite, based upon a BaO–MgO–Al2O3–SiO2 (BMAS) matrix, has been used for a study of microstructural stability (specifically interface stability) after environmental exposure at elevated temperature. Characterization of the as‐received material demonstrated the presence of a thin ‘carbon‐rich’ interfacial layer between fibre and matrix, as typically observed in glass‐ceramic/silicon carbide fibre composite systems. Samples have been subjected to heat‐treatments in an oxidizing atmosphere at temperatures between 723 and 1473 K, for up to 500 h. Intermediate‐temperature ageing, between 873 and 1073 K, results in strong fibre/matrix bonding, with consequent degradation of strength and composite ‘ductility’. This is due to oxidative removal of the carbon interfacial layer and subsequent oxidation of the fibre surface, forming a silica bridge. Carbon is retained at higher ageing temperatures due to the formation of a protective surface oxide scale at exposed fibre ends. Attempts to pretreat the BMAS composite at high temperature (1273–1473 K), designed to inhibit intermediate‐temperature degradation via the formation of silica plugs at exposed fibre ends, has given mixed results due to the high residual porosity content in these materials, allowing paths of ‘easy’ oxygen ingress to be retained.

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Section: Resultssupporting

confidence: 79%

Environmental ageing effects in a silicon carbide fibre‐reinforced glass‐ceramic matrix composite

Plucknett

Sutherland

Daniel

et al. 1995

Journal of Microscopy

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“…An unique advantage of sintering may be found in the incorporation of a reinforcing phase, thus leading to glass–ceramic matrix composites in a very simple and cost effective way. It should be noted that glass–ceramic matrix composites are generally manufactured by applying a nucleation/crystal growth treatment to previously obtained glass matrix composites 21–26 …”

Section: Introductionmentioning

confidence: 99%

Sintered Glass–Ceramics and Glass–Ceramic Matrix Composites from CRT Panel Glass

Bernardo

Andreola

Barbieri

et al. 2005

Journal of the American Ceramic Society

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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 Al2O3 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.

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“…Los GMCs se caracterizan por su fácil densificación, bajo coste y altas prestaciones [3] [4]. Otras ventajas derivan del hecho de la gran variedad de posibles combinaciones de partículas de vidrio y de "filler", en lo referente a la naturaleza físico-química, fracción volumétrica, tamaños de partícula, lo que posibilita una variación casi continua de las propiedades del producto.…”

Section: Figura 22 Ilustración Esquemática De La Sinterización Viscunclassified

Sinterización de compactos de vidrio y de composites vidrio-circón. Mecanismo y cinética del proceso

Roca¹

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Fibre reinforced glasses and glass-ceramics

Cited by 33 publications

References 21 publications

Environmental ageing effects in a silicon carbide fibre‐reinforced glass‐ceramic matrix composite

Environmental ageing effects in a silicon carbide fibre‐reinforced glass‐ceramic matrix composite

Sintered Glass–Ceramics and Glass–Ceramic Matrix Composites from CRT Panel Glass

Sinterización de compactos de vidrio y de composites vidrio-circón. Mecanismo y cinética del proceso

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