Abstract: In order to reduce costs and develop new functionalities of continuous fiber reinforced metals, fiber/matrix interphase is developed by the original low cost fabrication method. Optical fiber can be embedded in stainless steel fiber or SiC fiber reinforced aluminum composites by the interphase forming/bonding method. Deterioration of optical fiber during composite fabrication by this method is small enough to connect it to external fibers leading to LD light source and power meter with rubber joints. The composites can be bent without fiber fracture as secondary forming by local melting of the interphase. At lower temperatures, if the SiC fiber/matrix interface adhesion is improved, fracture of SiC fiber is considered to become earlier than that of optical fiber, where it will work as health monitor.!2
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