Fabrication of BaTiO 3 /Ni composite particles and their electro-magneto responsive properties
| Autor: | Weiqiang Zhang, Yaping Lu, Lijuan Wang, Zunyuan Xie, Lingxiang Gao, Meixiang Gao |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Scanning electron microscope Mechanical Engineering Composite number Nanoparticle 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Elastomer 01 natural sciences 0104 chemical sciences X-ray photoelectron spectroscopy Chemical engineering Mechanics of Materials Transmission electron microscopy Particle General Materials Science 0210 nano-technology Diffractometer |
| Zdroj: | Materials Science and Engineering: B. 221:54-62 |
| ISSN: | 0921-5107 |
| Popis: | BaTiO 3 (BT)/Ni composite particles were made by one-step method through agglomerating the metal Ni(0) nanoparticles reduced by a specific reducing agent (N 2 H 4 ·H 2 O) on the surface of BT sphere with diameter of ∼500 nm. The BT/Ni composite particles were characterized by the means of scanning electron microscope (SEM), transmission electron microscopy (TEM), X-ray diffractometer (XRD) and X-ray photoelectron spectroscopy (XPS). In BT/Ni particles, pure BT spherical particle was coated with Ni nanoparticles agglomerated on its surface. The average thickness of the Ni sheath was ∼30 nm and the content of Ni(0) and Ni (II) in the sheath were 70.2% and 29.8%, respectively. The responsive effects of BT/Ni particles filled in hydrogel elastomer were investigated by the viscoelastic properties. The results indicate that the BT/Ni particles exhibit electro and magneto coordinated responsive properties (E = 1 kV/mm, H = 0.1 T/mm), which is superior to BT particles with individual electro response. |
| Databáze: | OpenAIRE |
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