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Original title:
Neutron investigation of Nitinol stents and massive samples before and after PIRAC coating
Authors: Rogante, M. ; Buhagiar, J. ; Cassar, G. ; Debono, M. ; Lebedev, V. ; Mikula, Pavol ; Ryukhtin, Vasil
Document type: Papers
Conference/Event: 9th International Conference on Materials Structure and Micromechanics of Fracture (MSFM 2019), Brno (CZ), 20190626
Year: 2019
Language: eng
Abstract: Nitinol, a thermoelastic Ni-Ti Shape Memory Alloy (SMA) with approximately 50 at. % Ti, is adopted in a wide range of medical equipment and devices used in interventional radiology, orthopaedics, neurology and cardiology, in particular as a smart material for stents. In this work, NiTi real stents and massive samples before and after different Powder Immersion Reaction Assisted Coating (PIRAC) treatments have been investigated by using two neutron techniques: (1) Small and Ultra-Small Angle Neutron Scattering (SANS, USANS) for nano- and micro-scale characterization, obtaining information on structure and the effects due to the coating treatment, and (2) High-Resolution Neutron Diffraction (HRND), evaluating the macrostrain components resulting from angular shifts of diffraction peaks and the micro-strains in the plastically deformation region by means of profile-broadening analysis. The obtained results contribute: improving knowledge of defects and other key features of the materials complementary to those achieved by using traditional examination techniques. helping to better understand the functional characteristics of Nitinol parts and predict the material's mechanical behaviour.
Keywords: high-resolution neutron diffraction; nanostructure; Nitinol; SANS
Project no.: LM2015056 (CEP)
Funding provider: GA MŠk
Host item entry: Procedia Structural Integrity, ISSN 2452-3216
Institution: Nuclear Physics Institute AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0314152
Permalink: http://www.nusl.cz/ntk/nusl-432381
The record appears in these collections:
Research > Institutes ASCR > Nuclear Physics Institute
Conference materials > Papers
Authors: Rogante, M. ; Buhagiar, J. ; Cassar, G. ; Debono, M. ; Lebedev, V. ; Mikula, Pavol ; Ryukhtin, Vasil
Document type: Papers
Conference/Event: 9th International Conference on Materials Structure and Micromechanics of Fracture (MSFM 2019), Brno (CZ), 20190626
Year: 2019
Language: eng
Abstract: Nitinol, a thermoelastic Ni-Ti Shape Memory Alloy (SMA) with approximately 50 at. % Ti, is adopted in a wide range of medical equipment and devices used in interventional radiology, orthopaedics, neurology and cardiology, in particular as a smart material for stents. In this work, NiTi real stents and massive samples before and after different Powder Immersion Reaction Assisted Coating (PIRAC) treatments have been investigated by using two neutron techniques: (1) Small and Ultra-Small Angle Neutron Scattering (SANS, USANS) for nano- and micro-scale characterization, obtaining information on structure and the effects due to the coating treatment, and (2) High-Resolution Neutron Diffraction (HRND), evaluating the macrostrain components resulting from angular shifts of diffraction peaks and the micro-strains in the plastically deformation region by means of profile-broadening analysis. The obtained results contribute: improving knowledge of defects and other key features of the materials complementary to those achieved by using traditional examination techniques. helping to better understand the functional characteristics of Nitinol parts and predict the material's mechanical behaviour.
Keywords: high-resolution neutron diffraction; nanostructure; Nitinol; SANS
Project no.: LM2015056 (CEP)
Funding provider: GA MŠk
Host item entry: Procedia Structural Integrity, ISSN 2452-3216
Institution: Nuclear Physics Institute AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0314152
Permalink: http://www.nusl.cz/ntk/nusl-432381
The record appears in these collections:
Research > Institutes ASCR > Nuclear Physics Institute
Conference materials > Papers
Record created 2021-02-24, last modified 2022-09-29