Work

Effects of temperature and strain rate on the mechanical properties of hexagonal boron nitride nanosheets

Year: 2013

Type: article

Abstract: The effect of temperature and strain rate on mechanical properties remains an open topic in research of hexagonal boron nitride (h-BN) nanosheets. To examine these fundamental issues we have performed molecular dynamics simulations to record the stress–strain curves in tensile tests and measure Young's modulus, fracture strength and fracture strain in armchair and zigzag directions. Comparing the results obtained at different temperatures and strain rates we have quantified the effects of the two factors on the tensile properties of the h-BN nanosheets. The influence of crystal orientation is also examined in the present study. It is found that the h-BN nanosheets are basically an anisotropic material whose tensile properties vary substantially with temperature and strain rate. In particular, a yielding platform is observed for the h-BN nanomaterial at relatively low temperature.

Source: Journal of Physics D Applied Physics

DOI: 10.1088/0022-3727/47/2/025303

Authors: Tongwei Han, Ying Luo, Chengyuan Wang

Institution: Jiangsu University

Language: English

Topic: Boron and Carbon Nanomaterials Research

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: bronze

Funders: National Natural Science Foundation of China, Government of Jiangsu Province, Natural Science Foundation of Jiangsu Province

Awards: G4355065846, G7198683841