Table 1 An overview of the different techniques used for DRMMC fabrication [6]
Method | Range of shapes and sizes | Metal yield | Range of vol. fraction | Damage to reinforcement | Cost |
|---|---|---|---|---|---|
Liquid metallurgy (stir casting) | Wide range of shapes, larger size up to 500 kg | Very high (> 90%) | Up to 0.3 | No damage | Least expensive |
Squeeze casting | Limited by preform shapes, up to 2-cm height | Low | Up to 0.45 | Severe damage | Moderately expensive |
Powder metallurgy | Wide range, restricted size | High | – | Reinforcement fracture | Expensive |
Spray casting | Limited shapes, large size | Medium | 0.3–0.7 | – | Expensive |
Lanxide technique | Limited by preform shapes, restricted size | – | – | – | Expensive |