Document Type : Research Paper
Authors
Materials Engineering Dept., University of Technology-Iraq, Alsina’a street,10066 Baghdad, Iraq.
Abstract
NiTi alloys are widely used in biomedical applications for their unique properties particularly the shape memory effect, superelasticity, and biocompatibility. In this research, NiTi/PVA composite nanofibers are fabricated by electrospinning technique, using a novel method of producing NiTi ultrafine particles by immersing amorphous NiTi alloy in dilute aqua regia solution. The NiTi particles are successfully embedded in the PVA matrix. The produced NiTi particles are analyzed by X-ray diffraction (XRD), Energy dispersive spectroscopy (EDS), and Particle size analyzer. The XRD pattern of ultrafine NiTi particles shows much better phases as compared to the XRD pattern of the amorphous NiTi alloy sample. The morphology of the produced NiTi/PVA composite nanofibers are characterized by Field emission scanning microscope (FESEM), and Energy dispersive spectrometry (EDS). The test results show regular continuous smooth bead-free nanofibers.
Highlights
- Preparation of ultrafine NiTi particles by immersing sintered alloy in aqua regia.
- Preparation of composite biomedical NiTi /PVA nanofibers.
- Preparation of Nitinol nanofibers with polyvinyl alcohol.
Keywords
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