Publication detail

Boron nitride nanotubes as a reinforcement for brittle matrices

TATARKO, P. GRASSO, S. PORWAL, H. CHLUP, Z. SAGGAR, R. DLOUHÝ, I. REECE, M.

English title

Boron nitride nanotubes as a reinforcement for brittle matrices

Type

WoS Article

Language

en

Original abstract

Cylindrical and bamboo-like boron nitride nanotubes (BNNTs) have been used to reinforce brittle amorphous borosilicate glass matrix materials prepared by spark plasma sintering. The mechanical properties, such as hardness, Youngs modulus, fracture toughness, and scratch resistance of the materials have been investigated. The fracture toughness of the composites showed an improvement of app. 30% compared to the pure amorphous glass. BNNTs pull-out, crack bridging, stretching, and crack deflection toughening mechanisms were observed in the reinforced glass matrix composites. Extensive pull-out of the BNNTs (>400 nm) was observed in the form of the telescopic sword-in-sheath mechanism, resulting in poor energy dissipation due to the weak Van der Waals force between the inner walls of the BNNTs. The scratch resistance was significantly improved (app.26%) after the addition of the BNNTs, and the results correspond well with the brittleness index of the materials.

Keywords in English

boron nitrice nanotubes; bamboo like; cylindrical nanotubes; borosilicate glass; fracture toughnes; toughening

Released

2014-05-01

Publisher

Elsevier

ISSN

0955-2219

Volume

34

Number

14

Pages from–to

3339–3349

Pages count

11

BIBTEX


@article{BUT113348,
  author="Peter {Tatarko} and Salvatore {Grasso} and Harshit {Porwal} and Zdeněk {Chlup} and Richa {Saggar} and Ivo {Dlouhý} and Mike {Reece}",
  title="Boron nitride nanotubes as a reinforcement for brittle matrices",
  journal="Journal of the European Ceramic Society",
  year="2014",
  volume="34",
  number="14",
  pages="3339--3349",
  doi="10.1016/j.jeurceramsoc.2014.03.028",
  issn="0955-2219"
}