Effect of filler size and matrix properties on fracture toughness of particulate composites

This paper investigates the tensile properties and fracture toughness of a liquid rubber-modified highly crosslinked epoxy cured using 4,4 diaminodiphenyl sulphone (DDS/LR). The results for DDS/LR epoxy in relation to rubber and matrix properties are also compared with those of rubber-modified lowly crosslinked epoxy systems, namely, liquid rubber-modified piperidine cured epoxy (Piperidine/LR) and core-shell-rubber modified piperidine cured epoxy (Piperidine/CSR). It was found that highly crosslinked DDS/LR epoxy has a higher tensile strength than that of either Piperidine/LR or Piperidine/CSR epoxy, while it shows only a moderate increase in the fracture toughness.

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Fracture toughness () and tensile properties of as-cast and age-hardened aluminium (6063)–silicon carbide particulate composites

Scientia Iranica ◽

10.1016/j.scient.2012.06.001 ◽

2012 ◽

Vol 19 (4) ◽

pp. 992-996 ◽

Cited By ~ 88

Author(s):

K.K. Alaneme ◽

A.O. Aluko

Keyword(s):

Fracture Toughness ◽

Silicon Carbide ◽

Tensile Properties ◽

Particulate Composites ◽

Silicon Carbide Particulate

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Fracture Toughness Predictions for Crack Bowing in Brittle Particulate Composites

Journal of the American Ceramic Society ◽

10.1111/j.1151-2916.1983.tb09975.x ◽

1983 ◽

Vol 66 (1) ◽

pp. C-4-C-5 ◽

Cited By ~ 24

Author(s):

David J. Green

Keyword(s):

Fracture Toughness ◽

Particulate Composites

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Effect of nano/micro B4C and SiC particles on fracture properties of aluminum 7075 particulate composites under chevron-notch plane strain fracture toughness test

Materials Research Express ◽

10.1088/2053-1591/3/12/125026 ◽

2016 ◽

Vol 3 (12) ◽

pp. 125026 ◽

Cited By ~ 4

Author(s):

M R Morovvati ◽

A Lalehpour ◽

A Esmaeilzare

Keyword(s):

Fracture Toughness ◽

Plane Strain ◽

Particulate Composites ◽

Fracture Toughness Test ◽

Plane Strain Fracture Toughness ◽

Fracture Properties ◽

Chevron Notch ◽

Toughness Test ◽

Strain Fracture ◽

Aluminum 7075

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Advanced thermoplastics and their composites

Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences ◽

10.1098/rsta.1987.0064 ◽

1987 ◽

Vol 322 (1567) ◽

pp. 451-464 ◽

Cited By ~ 18

Keyword(s):

High Performance ◽

Molecular Structures ◽

Particulate Composites ◽

Structural Composites ◽

Chemical Attack ◽

Working Environments ◽

Matrix Properties ◽

The Matrix ◽

The One ◽

Fibre Matrix

Composite materials, be they highly oriented continous-fibre structural materials or short-fibre and even particulate composites, remain critically dependent upon matrix properties. Interest in the use of thermoplastic matrices has spread from conventional injection moulding composites into collimated continuous fibre materials. As the critical applications of such materials have been explored, so the demands on matrix properties have become clearer, and potentially more stringent. The demand for advanced properties is set primarily by response of the matrix, and fibre matrix interface to hostile working environments involving temperature, chemical attack, and physical abuse. Such properties are a reflection of molecular structures and their resulting morphology, but the achievement of desirable properties is bounded also by synthesis on the one hand and component fabrication on the other. By definition, such highly engineered materials and their related processes must exhibit ‘reliability’. The paper attempts to relate the interaction between structure and properties for such materials concentrating on high-performance structural composites and a view of the broad requirements if such materials are to have use.

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