Nano-coating thermal barrier and method for making the same

Abstract

A coating is adapted to be applied to a substrate for managing the flow of heat traveling through the substrate. The coating comprises an array of metal nano-particles held in a glassy matrix.

Description

technical field [0001] The present disclosure relates generally to techniques for controlling the transfer of thermal energy through materials, and more particularly to thermal barrier coatings and methods for making such coatings. Background of the invention [0002] Managing the flow of thermal energy through materials is important in many industries. Thermal energy flows through the material in the form of thermal quanta known as phonons. The flow of phonons through the material can be reduced by using insulations that present resistance to the flow of phonons, resulting in thermal differentials or temperature gradients. However, the use of spacers to control thermal energy transfer may have limitations in some applications. For example, in the aerospace industry, the use of spacers to reduce thermal energy transfer may add undesired weight to the vehicle, or may result in parts that are too large or thick for the application. [0003] The flow of phonons through the m...

AI Technical Summary

Problems solved by technology

However, the use of layered two-dimensional arrays of small metal particles to reduce heat flow through a phenomenon known as phonon interference has been largely limited to laboratory experiments.

Known layered two-dimensional arrays, which can be time-consuming and expensive to produce and can produce surfaces that may not be durable enough for high-performance applications, such as those found in the aerospace industry

Images