Background
Thermal and electrical isolation are key considerations in many extraterrestrial exploration systems. In high vacuum or low atmospheric density environments, maintaining thermal isolation can be challenging. Minimizing thermal and electrical conductivity of structural members in space applications is challenging as most structural components are comprised of metals, carbon fibers, or other moderate to highly conductive materials. Many low-conductivity materials including ceramics are heavy and brittle, and as a result unsuitable for many structural applications.
Invention Description
Researchers at Arizona State University have developed a structural member that provides thermal and electrical isolation in high-vacuum environments, including interplanetary exploration systems and structures. The device consists of two concentric structural members constructed from conductive materials including metals, ceramics, and composites. The thermal isolation between each member is minimized with a thin structural membrane and thermal coatings for controlled radiative emissions. This invention provides excellent thermal and electrical isolation in high-vacuum environments without compromising strength, impact resistance, or mass.
Benefits & Advantages:
- Improved mechanical properties: lightweight, strong, and impact resistant
- Isolated: prevents dust and other debris from contaminating internal surfaces and degrading radiation performance
Potential Applications:
- Space exploration vehicles
- Satellites
- Test fixtures for vacuum chamber equipment