Influence of short carbon fiber content on thermal properties of polyethersulfone composites. (2021)

• Record Type: Journal Article
• Authors: Harshavardhan, B.; Ravishankar, R.; Suresha, B.; Srinivas, S.; Arun C. Dixit, U.
• Is Part Of: Materials today. Volume 43:Supplement(2021)Part 2
• Page Start: 1268
• Page End: 1275
• Publication Date: 2021
• Subjects: Polyethersulfone: short carbon fibers -- Thermal conductivity -- Scanning calorimeter -- Transient line heater method -- Numerical analysis; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2020.08.769
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Heat dissipation plays progressively more significant role in several fields such as high-density gadgets, airplane microelectronics devices, advanced space crafts, thermal power plants, turbo-charger, due to the swiftly increasing thermal loads affects the reliability of components and limits its life span. With high stiffness, strength and low coefficient of thermal expansion (CTE), carbon fiber strengthened polymer composites have been broadly utilized in numerous engineering applications. Therefore, in the current material investigation, thermal characterizations were made on polyethersulfone (PES) material compounded with short carbon fiber (SCF) by four different weight fraction via 0, 10, 20 and 30 wt%. Specific heat (cp ) was determined through differential scanning calorimeter (DSC) and thermal conductivity was measured by transient line heater method. Specific heat of PES/SCF composites decreased and conductivity was increased with the higher loading of SCF. Thermal diffusivity was in turn computed by using the relation between specific heat and thermal conductivity. In addition, numerical analysis was performed in Abaqus finite element package to simulate the transient line heater method. Temperature profiles of the composites extracted by numerical simulation matched with that of experimental temperature profile.