It has been found that ZnO nanoparticles modify the curing behavior and crossed-line density, among other properties, in epoxy systems. This study aimed at studying the thermo-mechanical properties of ZnO nanoparticles. Thermal properties were measured using a transient plane source technique (TPS) in a thermal constants analyzer. The addition of ZnO nanoparticles caused a decrease of the thermally resistant joints. Despite high thermal conductivity of ZnO-NPs, there was high thermal ...
Author(s): C. M. Medina, D. Rojas, E. Perez-Tijerina, M. F. Melendrez, P. Flores
Passive cooling is a method of dissipating heat rejected by electronic devices, and when associated to a phase change can be very effective. Phase change materials (PCMs) are widely used for thermal storage applications due to their ability to store and release large amounts of energy. Paraffin waxes also exhibit desirable characteristics, such as high latent heat and low thermal conductivity. This article looks at four nano-PCMs, obtained by seeding ...
Author(s): Davide Ercole, Laura Colla, Laura Fedele, Oronzio Manca, Sergio Bobbo, Simone Mancin
Recently, 2-D graphene nanoparticles produced by graphite exfoliation are a promising nanofiller for enhancing the thermal conductivity of polymeric materials. Unlike one-dimensional structures of carbon nanotubes, the 2-D structure provides reinforcement of polymer nanocomposites in two directions. In this article, multiwall carbon nanotubes (MWCNTs) and 2-D exfoliated graphite (EG), in a tetrafunctional epoxy resin, are investigated to determine the effect on thermal conductivity. Thermal conductivity measurements were carried out using ...
Author(s): Carlo Naddeo, Khalid Lafdi, LiberataB Guadagno, Luigi Vertuccio, Vittorio Romano
Nanocomposites are formed by combining conducting polymers and inorganic nanoparticles. In this study, nanocomposites of Ni-Zn ferrite were tested to determine the variation in their thermal properties. A thermal analyzer was used to measure thermal conductivity and thermal diffusivity of the composites using the transient plane source (TPS) method over a temperature range of 30 to 140°C. Results indicate that thermal conductivity and thermal diffusivity of Ni-Zn ferrites in a copolymer ...
Author(s): G. P. Joshi, N. S. Saxena, R. Mangal
Silver (Ag) has the highest thermal conductivity of all metals, making it an attractive nanoparticle for use in heat transfer systems. The shape of nanoparticles influences their thermal conductivity, so three varieties of Ag nanoparticles were tested in this study. The Thermal Constants Analyser measured the thermal conductivity of Ag nanospheres (NSs), nanowires (NWs), and nanoflakes (NFs) between 10-30 °C using the transient plane source (TPS) method. Results showed that ...
Author(s): Guan-Hua Cheng, Ke-Fa Cen, Li-Wu Fan, Qing Ding, Xin Fang, Xu Xu, Ya-Cai Hu, Zi-Tao Yu
