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Properties and Performance of Polycrystalline Cubic Boron Nitride
Author(s) -
Swab Jeffrey J.,
VargasGonzalez Lionel,
Wilson Elizabeth,
Warner Eric
Publication year - 2015
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12380
Subject(s) - materials science , boron nitride , boron carbide , ceramic , diamond , composite material , abrasive , armour , toughness , crystallite , fracture toughness , metallurgy , layer (electronics)
Cubic boron nitride ( CBN ) is a lightweight (ρ = 3.45 g/cm 3 ) ceramic material that is harder than all materials except diamond. As harder ceramics tend to perform better as armor, this material is of interest to the military community. CBN is synthetically produced and is primarily used as an abrasive and in cutting tool applications. The properties (elastic modulus, strength, toughness, hardness, etc.) and ballistic performance of this material were determined and compared to a commercially available armor‐grade boron carbide (B 4 C).