Abstract
Coefficient of thermal expansion of multiphase composite materials plays an important role in the process of engineered materials design especially while approaching thermal management issues. Tailoring and designing material combinations in order to develop a composite structure to prove stability over a wide range of temperatures, from cryogenic to high values, to withstand extreme environmental conditions is the dream and purpose of any engineering team involved in such study/research area. The paper aims to approach and present the variations of the CTE with extreme environmental conditions (e.g. cryogenic conditioning) for particular combinations of particle-fibers multiphase polymeric composite materials. Influencing factors will be underlined to accompany the experimental research. Keywords: multiphase, polymer, composite, cryogenic, coefficient of linear thermal expansion