## Abstract The aim of this work was to investigate those mechanical parameters able to describe the fracture behavior of dental composite resins. A commercially available fineβparticle microβhybrid resin composite was used. Classical parameters as Young's modulus, strength distribution, and critic
The work of fracture of epoxy resins
β Scribed by B. Colyer; M.T. Ball; M.P. Campbell
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 248 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0011-2275
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β¦ Synopsis
erconducting magnet windings are impregnated with xy resins to prevent movements of the conductors which ht cause premature quenching or loss of accuracy of 1. The properties required for impregnating resins were ussed in a recent report from this Laboratory.1 A wledge of the work of fracture may be used as a guide ssess how well a resin will resist cracking when subed to stress. work described in this report was carried out so that crack resistance of various resins might be ascertained. method used is similar to that described by Tattersall Tappin. 2 .~o~
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Flammability determinations have been made for epoxy resin formulations. The oxygen index, defined as the volume fraction of oxygen in an oxygen/nitrogen at.mosphere that is required just to sustain steady candlelike burning of a stick of the material, has been used as the measure of flammability. T
The effect of fly-ash ftller in short glass fibre and random glass fibre reinforced epoxy resin were studied under tensile loading. The tows of fibre were continuously coated with epoxy resin prior to chopping into moulding pellets. The results show that the fracture properties of short and random g