In this work

carbon fiber/nylon-1010 interfacial morphologies have been investigated by hot stage microscopy for single fibers embedded in nylon-1010 matrix. Results show that the ability for carbon fiber to cause nucleation of nylon-1010 producing transcrystallinity around fibers depends on the type of carbon fiber used and the highmodulus carbon fiber (M40) is more effective at nucleating nylon-1010 compared with the high-or middle-strength carbon fibers. The interfacial morphologies may be strongly influenced by the temperature and time of crystalliza-tion. The origins of these effects are also discussed.