| 摘要 |
A method of manufacture is described for composite materials having a matrix produced via a consolidated powder process and incorporating aligned short fibre reinforcement. The method involves feeding a paste of powdered matrix material into a twin roller mill (2, 4) having a first roller (4) with a speed of rotation greater than a second roller (2), so that during rolling the paste forms into a sheet of matrix material (9) around the first roller; feeding one or more lengths of reinforcing fibre (10) into the nip (6) between the rollers; and subjecting the fibre and matrix mixture to a unidirectional rolling so that the fibre is broken up into an array of short fibres within the sheet and continuing rolling to such an extent that the array of short fibres becomes substantially aligned. The sheet of fibre containing green composite may then be removed from the first roller. |
