Fracture surface roughness and toughness of Al2O3-platelet reinforced glass matrix composites

Boccaccını, Aldo R.; Winkler, V.

doi:10.1016/s1359-835x(01)00080-x

Cited by 42 publications

(19 citation statements)

References 18 publications

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“…The authors used uniaxial pressing and pressureless sintering at 1065°C to fabricate glass-ceramic composites with densities of more than 90% of the theoretical density and with reasonable fracture strength (97MPa) but low hardness (4.7GPa). As found in plateletreinforced glasses [91], the addition of 30vol% alumina platelets provided a significant improvement of the fracture toughness (1.92MPa m 1/2 ) over that of the un-reinforced silicate matrix (0.77MPa m 1/2 ). Hence, given that the composite material possesses an acceptable combination of hardness and fracture toughness, the investigators suggested potential applications as building and construction materials as well as high-performance tiles and machine tools.…”

Section: Slag-based Glass-ceramic Matrix Compositessupporting

confidence: 52%

Glass-ceramics: Their production from wastes—A Review

2006

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Glass-ceramics are polycrystalline materials of fine microstructure that are produced by the controlled crystallisation (devitrification) of a glass. Numerous silicate based wastes, such as coal combustion ash, slag from steel production, fly ash and filter dusts from waste incinerators, mud from metal hydrometallurgy, different types of sludge as well as glass cullet or mixtures of them have been considered for the production of glass-ceramics. Developments of glassceramics from waste using different processing methods are described comprehensively in this review, covering R&D work carried out worldwide in the last 40 years. Properties and applications of the different glass-ceramics produced are discussed. The review reveals that considerable knowledge and expertise has been accumulated on the process of transformation of silicate waste into useful glass-ceramic products. These glass-ceramics are attractive as building materials for usage as construction and architectural components or for other specialised technical applications requiring a combination of suitable thermo-mechanical properties.

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Section: Slag-based Glass-ceramic Matrix Compositessupporting

confidence: 52%

Glass-ceramics: Their production from wastes—A Review

2006

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“…The analysis method used the R a value, which is universally recognized as the international parameter of roughness derived from the arithmetic mean of the absolute departures of the roughness profile from the mean line. 31 The surface roughness of the ground specimens was analysed parallel and perpendicular to the direction of grinding to assess the grinding-induced roughness. Three readings were taken with a traveling distance of 2 mm across the modified surface of the specimens and a mean value was calculated…”

Section: Profilometrymentioning

confidence: 99%

The influence of surface modification techniques on the performance of a Y-TZP dental ceramic

Curtis

Wright

Fleming

2006

Journal of Dentistry

212

136

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“…The chemical composition and the physical properties of Duran ® glass are shown in Table 1. 25 This glass has been used extensively as matrix in ceramic platelet 26,27 and fibre reinforced composites. 28,29 As shown in Table 1 there is alumina in the chemical composition of Duran ® glass: such addition is favourable since it should prevent the glass from crystallization (with cristobalite precipitation), which may occur when sintering or other heat-treatments are performed.…”

Section: Starting Materialsmentioning

confidence: 99%