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A Lay-Up process is a moulding process for composite materials, in which the final product is obtained by overlapping a specific number of different layers, usually made of continuous polymeric or ceramic fibres and a thermoset polymeric liquid matrix. It can be divided into Dry Lay-up and Wet Lay-Up, depending on whether the layers are pre ...
For example, C/C stands for carbon-fiber-reinforced carbon (carbon/carbon), or C/SiC for carbon-fiber-reinforced silicon carbide. Sometimes the manufacturing process is included, and a C/SiC composite manufactured with the liquid polymer infiltration (LPI) process (see below) is abbreviated as LPI-C/SiC.
An advantage in the production of Pitch carbon fibers over PAN carbon fibers is that Pitch carbon fibers do not require constant tension on the fibers at all processing stages. Pitch based carbon fibers have been found to be more sheet-like in their crystal structure, as opposed to PAN based carbon fibers, which are more granular. [4]
Vacuum Assisted Resin Transfer Molding (VARTM) or Vacuum Injected Molding (VIM) is a closed mold, out of autoclave (OOA) [1] composite manufacturing process. VARTM is a variation of Resin Transfer Molding (RTM) with its distinguishing characteristic being the replacement of the top portion of a mold tool with a vacuum bag and the use of a vacuum to assist in resin flow. [2]
Automated fiber placement (AFP), also known as advanced fiber placement, is an advanced method of manufacturing composite materials. These materials, which offer lighter weight with equivalent or greater strength than metals, [ 1 ] are increasingly used in airframes and other industrial products.
Some examples where CVI process is used in the manufacturing are: Carbon / Carbon Composites (C/C) Based on previous study, a PAN-based carbon felt is chosen as preform, while kerosene is chosen as a precursor. The infiltration of matrix in the preform is performed at 1050 °C for several hours at atmospheric pressure by the FCVI.
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CFSMC, or Carbon Fiber Sheet Molding Compound (also known as CSMC or CF-SMC), is a ready to mold carbon fiber reinforced polymer composite material used in compression molding. While traditional SMC utilizes chopped glass fibers in a polymer resin, CFSMC utilizes chopped carbon fibers. The length and distribution of the carbon fibers is more ...
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