Determining the fracture resistance of fibre-reinforced glass matrix composites by means of the chevron-notch flexural technique

Mechanical Properties of Low‐Density SiC‐Coated Carbon‐Bonded Carbon Fiber Composites

“…A second method used to measure fracture toughness was the chevron notched test 13 applying the methodology introduced in a previous study 14 . Samples for the x / y orientation for both the silicon carbide‐coated CBCF and CVD CBCF materials had dimensions of 3 mm × 4 mm × 50 mm.…”

Borosilicate glass matrix composites containing multi-wall carbon nanotubes

“…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.…”

Development and characterisation of high-density oxide fibre-reinforced oxide ceramic matrix composites with improved mechanical properties

“…14,15 It is reported that AE sources such as matrix cracking, fibre/matrix interfacial separation and fibre failure could be evaluated simultaneously in both metallic and ceramic matrix composites. [14][15][16][17][18][19] The elastic wave generated by the propagation of a crack through the solid to the surface can be recorded by one or more sensors. The sensor is a transducer that converts the mechanical wave into an electric signal.…”

“…In this way information about the existence and location of a crack can be obtained. A variety of damage mechanisms including matrix cracking, fibre debonding and fibre fracture, which are common events when a ceramic composite is subjected to loading, can be identified 19 As damage progresses, different forms of AE signals are detected depending on the type of fracture mechanism acting. …”