Experimental and Theoretical Estimation of Radiopacity of Miniature Titanium Nickelide Samples with Micrometer Ti- and Ta-Based Coatings

Gudimova, E. Yu.; Meisner, L. L.; Meisner, S. N.; Shabalina, O. I.; Boshchenko, Alla A.; Baev, A.; Винтизенко, С. И.

doi:10.1134/s1063784220040088

Cited by 4 publications

(2 citation statements)

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“…In a recent paper [17], the authors succeeded to synthesize a Ta-coating and its oxides on the surface of NiTi by magnetron sputter deposition at 100 W power on a sputtered tantalum cathode. In this work, as well as in earlier works [16,[18][19][20][21][22][23], heat treatment was used to improve adhesion and quality of the coating after its application. But, the effect of high temperatures on nitinol can reduce the volume content of martensite phase, responsible for the shape memory effect.…”

Section: Introductionmentioning

confidence: 99%

“…Secondly, a number of earlier works [16,[18][19][20][21][22][23] reflect that the β-Ta structure is the main phase deposited in the first minutes of the Ta-coating formation by various methods of synthesis. It was established that the coating of tantalum significantly improves radioimpermeability and corrosion resistance of nitinol implants.…”

Section: Introductionmentioning

confidence: 99%

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Formation of tantalum coatings with a given structure on the surface of niti alloy by magnetron sputter deposition

Akayev¹

2022

Funct. Compos. Struct.

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Way for applying tantalum coating with a given structure to the surface of an alloy with a shape memory effect NiTi to increase the biocompatibility of implants from this alloy is presented. The coating was synthesized by DC-magnetron sputtering. The changes sequence of the structural-phase states depending on the thickness of the coating, that is, the rate of its deposition, has been established. It is shown that at a low magnetron power, ~ 14 W in present study, a single-phase α-Ta coating with a bcc structure and a high degree of perfection of the crystal lattice is successfully synthesized on the titanium nickelide surface.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Formation of tantalum coatings with a given structure on the surface of niti alloy by magnetron sputter deposition

Akayev¹

2022

Funct. Compos. Struct.

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Local structure and medium-range order in a glassy Ti-Ta-based surface alloy after low-temperature annealing studied by electron nano-beam diffraction

Semin

Gudimova

Нейман

et al. 2021

Materials Characterization

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On β-titanium alloys: tailoring gamma-ray, and neutron transmission properties for nuclear and biomedical applications

AlMisned,

Baykal,

Alkarrani

et al. 2024

Metall. Res. Technol.

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This study explores the gamma-ray and neutron transmission properties of β-Titanium alloys pivotal for their performance in nuclear and biomedical applications. Utilizing the Monte Carlo N-Particle (MCNP 6.3) simulations, we analyzed a spectrum of Ti-based alloys modified with elements like molybdenum (Mo), zirconium (Zr), niobium (Nb), and hafnium (Hf) to determine their radiation attenuation properties. Key parameters such as mass and linear attenuation coefficients, half-value layers, exposure buildup factors, and fast neutron effective removal cross-section values were computed, revealing significant enhancements in attenuation with the addition of high-Z elements. Specifically, alloys like Ti50Hf50 and (TiZr)40Cu60 exhibited superior photon and fast neutron attenuation due to their high-Z constituents. For instance, Ti50Hf50 showed a mass attenuation coefficient of 0.217 cm2/g and a half-value layer of 2.97 cm at 0.1 MeV photon energy, while (TiZr)40Cu60 demonstrated similar performance with a mass attenuation coefficient of 0.198 cm2/g and a half-value layer of 3.26 cm. These alloys also exhibited effective neutron removal cross-section values of 0.115 cm−1 and 0.130 cm−1, respectively. Alloys with lower-Z elements showed less attenuation, which may be beneficial in scenarios requiring reduced radiographic contrast in biomedical applications. The MCNP outcomes were in strong agreement with standard data, affirming the accuracy of computational methods in predicting material behavior. In conclusion, tailored alloy development is crucial for improving radiation shielding and diagnostic visualization, with broader implications for patient safety and treatment efficacy.

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Experimental and Theoretical Estimation of Radiopacity of Miniature Titanium Nickelide Samples with Micrometer Ti- and Ta-Based Coatings

Cited by 4 publications

References 10 publications

Formation of tantalum coatings with a given structure on the surface of niti alloy by magnetron sputter deposition

Formation of tantalum coatings with a given structure on the surface of niti alloy by magnetron sputter deposition

Local structure and medium-range order in a glassy Ti-Ta-based surface alloy after low-temperature annealing studied by electron nano-beam diffraction

On β-titanium alloys: tailoring gamma-ray, and neutron transmission properties for nuclear and biomedical applications

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