Abstract
The addition of tin-lead (60 wt% Sn) alloy particles (about 21-25 μm in diameter, in an amount up to 37 wt% or 7.2 vol%) between continuous unidirectional carbon fibre layers in an epoxy-matrix composite was found to improve the fatigue life by over 100 times. The alloy addition had little effect on the tensile strength, tensile modulus, compressive strength, compressive modulus (with the compressive force parallel and perpendicular to the fibres), but increased the electrical resistivity. The composites were fabricated by compression moulding at 185-200°C and 1 MPa for 30 min. The heating allowed the alloy to melt while the epoxy cured. The fatigue life enhancement is probably due to the hindering of the fatigue crack growth by the alloy particles.
| Original language | English |
|---|---|
| Pages (from-to) | 419-424 |
| Number of pages | 6 |
| Journal | Composites |
| Volume | 21 |
| Issue number | 5 |
| DOIs | |
| State | Published - Sep 1990 |
Keywords
- alloy additions
- carbon/epoxy
- composite materials
- fatigue resistance
- mechanical properties
- Sn-Pb alloy
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