A D V A N C E D M A T E R I A L S & P R O C E S S E S | A P R I L 2 0 2 3 9 TAKING NANOMATERIALS TO THE LIMIT Researchers at Florida State University’s High-Performance Materials Institute in Tallahassee are conducting research on the thermal limits of advanced nanomaterials. Their work has the potential to enhance medicine delivery systems, electronics, space travel, and other applications. The team completed the first-ever study on how purified boron nitride nanotubes (BNNTs) remain stable in extreme temperatures in inert environments. BNNTs are measured by the nanometer and are stronger and more resistant to high temperatures than carbon nanotubes. However, manufacturing these materials is challenging, and current methods for BNNTs do not yet yield the same quantities as those used to produce carbon nanotubes. The researchers found that BNNTs are fully stable at up to 1800°C in an inert environment and can withstand temperatures of 2200°C for short periods without losing their mechanical properties. Potential applications for these light, strong composite materials are plentiful. BNNTs show particular promise for use in space exploration due to their ability to conduct heat, insulate electrical current, and block radiation. They could be used in space rovers or spacecraft during reentry into Earth’s atmosphere. Additionally, their properties make them useful for high- performance electronics. “Understanding the behavior of these nanotubes at high temperatures is crucial for creating materials that can withstand extreme conditions, both in manufacturing and in their final use,” says lead researcher Mehul Tank. “As we understand better how they function in these conditions, we’ll be able to develop better manufacturing of composites that employ high-temperature processing matrices, like ceramics and metals.” fsu.edu. Boron nitride nanotube material in a crucible for heating at Florida State University’s High-Performance Materials Institute. Courtesy of Mark Wallheiser/ FAMU-FSU Engineering. LE-237i oct- 2023.ps T:\MISC\ADS\LE-237\LE-237i oct- 2023.cdr Wednesday, March 8, 2023 3:59:40 PM Color profile: Disabled
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