In the reported experiments, the thermal conductivity of various fiber- and particle-filled composite materials was measured in a temperature range from minus 180 to plus 140 degree C. Various epoxy and unsaturated polyester resins as well as some thermoplastics were used as matrix materials. Filler...
The temperature dependences of the thermal conductivity of silicon carbide- and silicon nitride-based materials prepared by various methods are presented. The thermal conductivity of silicon carbide–based materials prepared by reaction (SiSiC) and liquid-phase (LPSSiC) sintering and silicon nitride-based...
The thermal conductivities of materials are extremely important for many practical applications, such as in understanding the thermal balance and history of the Earth, energy conversion of devices and thermal management of electronics. However, measurements of the thermal conductivity of materials under pr...
In this short contribution, we focus on the first task, the selection of oxides that may have low thermal conductivity. In the absence of rigorous theories for high-temperature thermal conductivity, we make use of existing models to estimate the minimum thermal conductivity of insulating materials....
Materials with ultrahigh or low thermal conductivity are desirable for many technological applications, such as thermal management of electronic and photonic devices, heat exchangers, energy converters and thermal insulation. Recent advances in simulation tools (first principles, the atomistic Green’s funct...
This paper presents the results of a comprehensive laboratory study on the thermal conductivity of dense and broadly graded coarse base-course materials used in pavements. Materials were selected from eight quarries along the axis of the St. Lawrence River to include a variety of samples of differe...
Free space Green's functions are derived for graded materials in which the thermal conductivity varies exponentially in one coordinate. Closed-form express... LJ Gray,T Kaplan,JD Richardson,... - 《Journal of Applied Mechanics》 被引量: 149发表: 2003年 Thermal conductivity of graded composites:...
针对微观热输运性质进行了大量研究,主要包括纳米薄膜材料热导率,金属/金刚石界面、有机/无机复合材料界面导热,极低温条件和超高压(GPa级)条件下热输运等,相关成果发表在Advanced Materials、Nano Energy、ACS Nano及Acta Materialia等期刊,已发表SCI论文30余篇。 展开 课程章节 1 Introduction Energy And Its ...
Thermal conductivity refers to the ability of a material to transfer heat, which is determined by the amount of heat that can be transferred by the material. It can be calculated by measuring the heat flux density per unit degree of temperature difference using Fourier's law. Thermal conductivit...
In this paper we report on a computationally cost-effective method designed to estimate the thermal conductivity of optical materials based on cubic oxide including mixed ones, i.e. solid solutions of different oxides. The proposed methodology take advantage from Density Functional Theory (DFT) calcul...