Ceramics For High Heat Applications

Broadly speaking uhtcs are borides carbides nitrides and oxides of early.

Ceramics for high heat applications.

This issue can be solved by using high temperature heat pipes with a ceramic pipe container. Ultra high temperature ceramics uhtcs are a class of refractory ceramics that offer excellent stability at temperatures exceeding 2000 c being investigated as possible thermal protection system tps materials coatings for materials subjected to high temperatures and bulk materials for heating elements. In some cases their electricity insulating properties may also be valuable in bearings. State of the art for high temperature heat pipes are nickel based alloys as container material and alkali metals as working fluids cs k na li.

In very high speed applications heat from friction during rolling can cause problems for metal bearings which are reduced by the use of ceramics. High temperature heat exchangers based on ceramic materials open up such opportunities in many applications. Similarly in applications closer to us such as infrared heaters in modern houses high temperature furnaces barbeque grills and household heating appliances glass ceramics stand out with their sleek stylish look the versatile material options and their ability to resist different influences. Technical ceramic materials stand out due to unique set of properties such as high resistance to corrosion erosion and wear electrical and thermal insulation at high temperatures and high heat resistance.

This paper outlines the results of the ongoing work on the design of such heat.