DARPA Developing Next Generation Materials for Hypersonic Planes and Weapons

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News Story Source: https://www.nextbigfuture.com
There two main challenges for hypersonic weapons and vehicles are for engines and rockets to generate the speed and for materials that can survive at the extreme temperatures. Moving at hypersonic speeds of 5 to 25 or more times the speed of sound in the atmosphere generates extremely high temperatures.

There are some carbon-based composite materials that are currently used. Composites composed principally of C-C with coatings are able to be used higher temperature operation. There are approaches that rely principally on ablation as a thermal management method and techniques for enhancing heat transfer solely through solid conduction. Increasing heat conduction allows materials to get rid of the extra heat.

DARPA's MACH program is a four year, two-phase effort.

The first goal is to develop fully integrated leading-edge solutions that can be put into near-term hypersonic platforms.

The second goal will explore new materials spaces such as new metal alloys, ceramic compos
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