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Bioinspired Multifunctional Ceramic Platelet‐Reinforced Piezoelectric Polymer Composite
Author(s) -
Xu Zhe,
Bykova Julia,
Baniasadi Mahmoud,
Moreno Salvador,
Zhou Zhong,
Das Nandita,
Bandi Sasaank,
Xi Yang,
Qian Dong,
Baughman Ray H.,
MinaryJolandan Majid
Publication year - 2017
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201600570
Subject(s) - materials science , ceramic , composite material , composite number , piezoelectricity , polymer , ceramic composite
Hybrid materials of inorganic–organic phases in which each phase provides different functionality are attractive candidates for achieving multifunctionality. Using a layer‐by‐layer approach, we fabricated sheets of piezoelectric polymer P(VDF‐TrFE) reinforced by aligned sub‐micron thick sapphire platelets. The films were transparent and piezoelectric, exhibited ductility up to ≈330%, and tensile toughness of up to 26 J g –1 . We investigated the effect of thermal annealing on the crystallinity of the polymer phase and its effect on the mechanical and piezoelectric properties of the films. Thermal annealing resulted in improvement of the elastic modulus and piezoelectric properties of the films. in situ SEM tensile experiments were conducted for observation of the deformation mechanism of the films.