Unknown

Dataset Information

0

Wall-thickness-dependent strength of nanotubular ZnO.


ABSTRACT: We fabricate nanotubular ZnO with wall thickness of 45, 92, 123?nm using nanoporous gold (np-Au) with ligament diameter at necks of 1.43??m as sacrificial template. Through micro-tensile and micro-compressive testing of nanotubular ZnO structures, we find that the exponent m in [Formula: see text], where [Formula: see text] is the relative strength and [Formula: see text] is the relative density, for tension is 1.09 and for compression is 0.63. Both exponents are lower than the value of 1.5 in the Gibson-Ashby model that describes the relation between relative strength and relative density where the strength of constituent material is independent of external size, which indicates that strength of constituent ZnO increases as wall thickness decreases. We find, based on hole-nanoindentation and glazing incidence X-ray diffraction, that this wall-thickness-dependent strength of nanotubular ZnO is not caused by strengthening of constituent ZnO by size reduction at the nanoscale. Finite element analysis suggests that the wall-thickness-dependent strength of nanotubular ZnO originates from nanotubular structures formed on ligaments of np-Au.

SUBMITTER: Kang NR 

PROVIDER: S-EPMC5489488 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature

altmetric image

Publications

Wall-thickness-dependent strength of nanotubular ZnO.

Kang Na-Ri NR   Kim Young-Cheon YC   Jeon Hansol H   Kim Seong Keun SK   Jang Jae-Il JI   Han Heung Nam HN   Kim Ju-Young JY  

Scientific reports 20170628 1


We fabricate nanotubular ZnO with wall thickness of 45, 92, 123 nm using nanoporous gold (np-Au) with ligament diameter at necks of 1.43 μm as sacrificial template. Through micro-tensile and micro-compressive testing of nanotubular ZnO structures, we find that the exponent m in [Formula: see text], where [Formula: see text] is the relative strength and [Formula: see text] is the relative density, for tension is 1.09 and for compression is 0.63. Both exponents are lower than the value of 1.5 in t  ...[more]

Similar Datasets

| S-EPMC10020246 | biostudies-literature
| S-EPMC3153949 | biostudies-literature
| S-EPMC2254584 | biostudies-literature
| S-EPMC4274345 | biostudies-literature
| S-EPMC9328290 | biostudies-literature
| S-EPMC6177500 | biostudies-literature
| S-EPMC9537358 | biostudies-literature
| S-EPMC2408438 | biostudies-literature
| S-EPMC8692777 | biostudies-literature
| S-EPMC8764087 | biostudies-literature