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Boron Nitride Nanotubes‐Reinforced Glass Composites
Author(s) -
Bansal Narottam P.,
Hurst Janet B.,
Choi Sung R.
Publication year - 2006
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2005.00701.x
Subject(s) - materials science , composite material , fracture toughness , boron nitride , composite number , aluminosilicate , hot pressing , boron , flexural strength , toughness , calcium aluminosilicate , catalysis , biochemistry , chemistry , organic chemistry
Boron nitride nanotubes (BNNT) of significant lengths were synthesized by reaction of boron with nitrogen. Barium calcium aluminosilicate glass composites reinforced with∼4 wt% of BNNT were fabricated by hot pressing. Ambient‐temperature flexure strength and fracture toughness of the glass‐BNNT composites were determined. The strength and fracture toughness of the composite were higher by as much as 90% and 35%, respectively, than those of the unreinforced glass. Microscopic examination of the composite fracture surfaces showed pullout of the BNNT. The preliminary results on the processing and improvement in mechanical properties of BNNT‐reinforced glass matrix composites are being reported here for the first time.