Reactive sintering of 2.5D Cf/ZrC-SiC ceramic matrix composite

• In this work, a novel approach to rapidly densify ceramic matrix composite was developed by combining ceramic and composite processing. Cf preform, which was injected and impregnated with slurries containing ZrSi2 and phenolic resin, was consolidated by spark plasma sintering at 1550 °C/50 MPa for 5 min. During densification, ZrSi2 and resin carbon converted to ZrC and SiC, newly formed particles were incorporated in the preform preferentially in the fiber randomly orientated layer. Although all the composites exhibit non-brittle fracture manner, their flexural strength and toughness only reach maximum in the sample with a carbon to ZrSi2 molar ratio of 3:1.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Materialteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Materials Engineering (hsv//eng)

Nyckelord

Spark plasma sintering

Carbides

Reactive sintering

Fiber reinforced composites

Mechanical properties

Publikations- och innehållstyp

ref (ämneskategori)

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