Coatings to Protect Materials from Extreme Environments: Poster Session
Sponsored by: ACerS Engineering Ceramics Division
Program Organizers: Kang Lee, NASA Glenn Research Center; Yutaka Kagawa, High Performance Materials; Daniel Mumm, University of California, Irvine; Rodney Trice, Purdue University; Emmanuel Boakye, UES Inc.; Valerie Wiesner, NASA Langley Research Center; Edward Gorzkowski, Naval Research Laboratory; Scooter Johnson, Naval Research Laboratory; Richard Chromik, McGill University; Jun Song, McGill University; Christian Moreau, Concordia University; Stephen Yue, Mcgill University
Tuesday 10:00 AM
November 3, 2020
Room: Poster Hall
Location: MS&T Virtual
Session Chair: Scooter Johnson, Naval Research Laboratory
Aerosol Deposition of Hexagonal and Cubic Boron Nitride: Eric Patterson1; Heonjune Ryou1; Scooter Johnson1; Edward Gorzkowski1; 1U.S. Naval Research Laboratory
Aerosol deposition is a thick-film deposition process that can produce layers up to a hundred micrometers thick with densities approximately 95% of the bulk theoretical value. The AD process takes place entirely at ambient temperature and replicates the exact phase of the powder used during the process, but yielding an entirely new microstructure. The resulting film consists of a dense, nano-grained structure of crystallite created by the fracture of the incoming powder. Boron nitride materials are complex to synthesize in the bulk due to high melting temperatures. This unique process can produce thick films of these materials on low melting temperature substrates despite these high temperature limitations. Thus, cubic and hexagonal boron nitride are investigated for their potential for use as protective coatings through this process.