Structure and Mechanical Properties of Multi-Functional Layer Deposited on Surface of Ni–Ti Shape Memory Alloy

Goryczka, Tomasz; Zubko, Maciej; Lelątko, J.; Salwa, Piotr; Wierzchoń, T.; Wojewoda-Budka, J.; Janusz-Skuza, Marta

doi:10.2320/matertrans.mc201805

Cited by 3 publications

(3 citation statements)

References 12 publications

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“…The total thickness of both sub-layers was about 25 nanometers. Technological parameters can be found in [ 13 ]. The titanium oxy-nitride was covered in the second stage with a hydroxyapatite layer (HAp).…”

Section: Methodsmentioning

confidence: 99%

“…A way to prevent material corrosion can be the application of protective layers/coatings made from biotolerant materials. So far, the coatings have been created in the form of a layer based on titanium oxides [ 11 ], titanium nitrides [ 12 ], titanium oxy-nitrides [ 13 ], diamond-like layers [ 14 ], hydroxyapatite [ 15 ], and biocompatible polymers (i.e., polylactide, chitosan) [ 16 ]. In the case of titanium oxide, nitride, and oxy-nitride layers, it is necessary to introduce the technology, which requires increasing the processing temperature.…”

Section: Introductionmentioning

confidence: 99%

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NiTi Shape Memory Clamps with Modified Surface for Bone Fracture Treatment

et al. 2023

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Using NiTi alloys with shape memory for long-term medical implants requires modification of their surface due to the possible occurrence of corrosion. Hence, the surface of the staples used to join fractured bone within the craniofacial region was modified by applying a titanium oxy-nitrogen layer and a hydroxyapatite coating. Surface-modified clamps were tested in vivo using New Zealand white rabbits. After determining the mechanical characteristics of the bone and considering the initial state and surface modification, the diameter of the wire (used to make the clamps with the appropriate compression force) was selected. Implantation was performed on two groups of rabbits: experimental and control. In the experimental group, an intentionally induced bone fracture was treated in one tibia. On the second tibia, two additional clamps were applied to increase the possibility of a negative impact of the NiTi alloy on a living organism. After 6 weeks of application, a proper joining of the broken bone fragments was stated. Whereas after twelve weeks, no negative impact of the clamp material on a living organism, i.e., a rabbit, was found. Hence, the clamp with the modified surface can connect bone fragments in humans as well as small and medium-sized animals, with an extended range of use up to 12 weeks.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

NiTi Shape Memory Clamps with Modified Surface for Bone Fracture Treatment

et al. 2023

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“…Conventional electron microscopy techniques, such as bright-and dark-field TEM and high-resolution TEM observations, are still useful for analyzing the materials, and several researchers reported the results of the structural characterization of metals, 3,5,8) semiconductors, 4) and composite materials 7,9) in the seminar. Electron diffraction can provide scattering information over a wide range of the reciprocal lattice space, due to the short wavelength of highenergy electrons.…”

Section: Structure Analysis Of Amorphous Materials By Electron Diffractionmentioning

confidence: 99%

Review of “12th Japanese-Polish Joint Seminar on Micro and Nano Analysis (August 29–September 1, 2018)”

Ishimaru

2021

Mater. Trans.

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The main purpose of this seminar is to discuss the structural analysis of materials by electron microscopy techniques. Among the papers presented at the seminar, this article briefly reviews the following topics: observations of dislocations in a thick specimen by ultra-high voltage electron microscopy, suppression of geometric phase shift due to antiphase boundaries in dark-field electron holography, and structural characterization of amorphous materials by electron diffraction techniques.

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Parameter Equivalence and Impedance Characteristics of NiTi Wires Embedded in Nitrile Butadiene Rubber Based on Secondary Bridging Model

Huang,

Luo,

Zhang

et al. 2024

Metals

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This article presents a metal matrix composite material consisting of NiTi wires embedded in nitrile butadiene rubber (NBR) that preserves NBR’s inherent acoustic characteristics while enabling acoustic modification through the NiTi phase transition induced by stress and temperature. The macroscopic mechanical parameters of transversely isotropic NiTi-NBR composite materials are derived by means of a secondary bridging model that takes into account interfacial phases. On this basis, the acoustic impedance properties and absorption coefficient of composite materials were examined as a function of NiTi volume fraction using the transfer matrix method. The accuracy and effectiveness of the theoretical method were verified by comparing the calculated results with finite element simulation. The research results indicated that regulating the volume fraction of NiTi can lead to the anticipated value of the input impedance of composite materials, improving impedance matching with media like water and rubber, which offers novel insights and a theoretical foundation for the development of underwater sound-absorbing materials.

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Structure and Mechanical Properties of Multi-Functional Layer Deposited on Surface of Ni–Ti Shape Memory Alloy

Cited by 3 publications

References 12 publications

NiTi Shape Memory Clamps with Modified Surface for Bone Fracture Treatment

NiTi Shape Memory Clamps with Modified Surface for Bone Fracture Treatment

Review of “12th Japanese-Polish Joint Seminar on Micro and Nano Analysis (August 29–September 1, 2018)”

Parameter Equivalence and Impedance Characteristics of NiTi Wires Embedded in Nitrile Butadiene Rubber Based on Secondary Bridging Model

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