Observation of mechanical fracture and corresponding domain structure changes of polycrystalline PbTiO 3  nanotubes | Zendy

Choi Hyunwoo | Zendy; Hong Seungbum | Zendy; Kim Yunseok | Zendy; Kim Myungjun | Zendy; Sung TaeHyun | Zendy; Shin Hyunjung | Zendy; No Kwangsoo | Zendy

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Observation of mechanical fracture and corresponding domain structure changes of polycrystalline PbTiO 3 nanotubes

Author(s) -

Choi Hyunwoo,

Hong Seungbum,

Kim Yunseok,

Kim Myungjun,

Sung TaeHyun,

Shin Hyunjung,

No Kwangsoo

Publication year - 2011

Publication title -

physica status solidi (rrl) – rapid research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.786

H-Index - 68

eISSN - 1862-6270

pISSN - 1862-6254

DOI - 10.1002/pssr.201004495

Subject(s) - piezoresponse force microscopy , ferroelectricity , crystallite , hysteresis , materials science , anatase , phase (matter) , composite material , gas phase , nanotechnology , crystallography , condensed matter physics , chemistry , optoelectronics , physics , metallurgy , biochemistry , organic chemistry , photocatalysis , dielectric , catalysis

PbTiO 3 (PTO) nanotubes (NTs) were synthesized at various temperatures by gas phase reaction between PbO gas and anatase TiO 2 NTs and characterized by piezoresponse force microscopy (PFM). PTO ferroelectric phase was synthesized at as low as 400 °C as evidenced by PFM domain images and piezoresponse hysteresis loop measurement. Furthermore, the PTO NTs fabricated at above 500 °C underwent mechanical fracture through development of nanocracks due to grain growth, leading to ferroelectric domains with larger size and lower aspect ratio. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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