Porous materials have widespread industrial applications. In this study, mullite materials with porosities between 72-86 vol% were fabricated and a thermal analyzer (TPS) measured their thermal conductivity using the transient plane source (TPS) technique. Results showed that as the porosity of the mullite materials decreased, thermal conductivity increased....
Author(s): Heping Zhang, Lunlun Gong, Ruifang Zhang, Xudong Cheng, Yonghong Wang
Two calcium silicate boards of different densities, porosities and pore size were analyzed for their thermal properties, specifically thermal conductivity. The boards were heated from room temperature to 400°C and the thermal conductivity was monitored during this time. A separate experiment 'aged' the boards first by heating at 1000°C for 4 hours before testing the thermal conductivity from room temperature to 400°C once again. The experimental results were compared with three ...
Author(s): Chi T. Do, Dale P. Bentz, Paul E. Stutzman
Using a solid hot stretching technique, highly-oriented polyoxymethyelen (POM)/multi-walled carbon nanotubes (MWCNTs) composites were created. Thermal properties were analyzed both in the stretched and through-plane directions. Researchers found that by increasing the draw ratio, to as high as 900%, the thermal conductivity of the composite has improved in the stretching direction, when compared to the material prior to this process. Researchers also determined that the thermal conductivity of the MWCNTs ...
Author(s): Lin Ye, Xiaowen Zhao
Traditional alloys are composed of approximately one to two major metal elements, such as aluminum, and titanium, etc. For the purpose of casting molds, new research has led to the creation of high-entropy (HE) alloys, that encompass five or more major metal elements. This research led to the discovery of lower thermal properties in HE alloys, portraying them as potential coatings in the management of casting molds. Low thermally conductive ...
Author(s): Chih-Chao Yang, Jien-Wei Yeh, Wei-Hong Wu
The Transient Plane Source method was used in this research article to measure the thermal conductivity of an Ionanofluid, highly stable graphene (GE)-based nanofluid, at various temperatures. Researchers took special note of the effects of temperature, GE loading, presence of multi-walled carbon nanotubes (MWCNTs), on the thermal conductivity of the nanofluid. Through experimental testing, it was determined that the nanofluid elicited a higher thermal conductivity, as compared to its ...
Author(s): F. Wang, J. Shi, L. Han, W. Ma, X. Fang, Z. Zhang
