Composite material combining: - a precious metal or an alloy containing a precious metal, - and a boron-based ceramic having a melting point above that of said precious metal and a density at most equal to 4 g/cm3.
Roland Logé, Jamasp Jhabvala, Antonia Neels, Annapaola Parrilli, Güven Kurtuldu, Navid Sohrabi