<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>In this study, low Young’s modulus, highly porous Ta-Nb-Sn alloy foam was manufactured by using the space holder method. The aim of this study is development of an alloy with high wear resistance, with Young’s modulus, with good imaging (MRI, CT) properties, and with high bioactivity. Ta alloy foam can be used in spinal applications (intervertebral disc) or dental applications. The space holder method enables the manufacturing of open-cell foam with a low elastic modulus. Powder mixtures were prepared through mechanical alloying. Carbamide was used to form pores. Ta has suitable strength, ductility, corrosion resistance, and biocompatibility. Ta has high price, however, and a high melting temperature, high activity, and high density. Nb addition lowered the melting temperature, elastic modulus, and cost of using Ta. The sinterability of Ta was enhanced by Sn addition. The corrosion behaviour of Ta alloy was examined. Young’s modulus was determined by compression and ultrasonic tests. Tomography and radiography tests were also used.</p>
</abstract>

In this study, low Young’s modulus, highly porous Ta-Nb-Sn alloy foam was manufactured by using the space holder method. The aim of this study is development of an alloy with high wear resistance, with Young’s modulus, with good imaging (MRI, CT) properties, and with high bioactivity. Ta alloy foam can be used in spinal applications (intervertebral disc) or dental applications. The space holder method enables the manufacturing of open-cell foam with a low elastic modulus. Powder mixtures were prepared through mechanical alloying. Carbamide was used to form pores. Ta has suitable strength, ductility, corrosion resistance, and biocompatibility. Ta has high price, however, and a high melting temperature, high activity, and high density. Nb addition lowered the melting temperature, elastic modulus, and cost of using Ta. The sinterability of Ta was enhanced by Sn addition. The corrosion behaviour of Ta alloy was examined. Young’s modulus was determined by compression and ultrasonic tests. Tomography and radiography tests were also used.

Mechanical and corrosion properties of highly porous Ta-Nb-Sn alloy for intervertebral disc in spinal applications

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

In this study, low Young’s modulus, highly porous Ta-Nb-Sn alloy foam was manufactured by using the space holder method. The aim of this study is development...

Carbamide particle shape	Carbamide particle size ranges (μm)	Mean carbamide particle size (μm)	Mean pore size (μm)
Irregular	–1400+1000	1270	850
Irregular	–1000+710	860	590
Irregular	–710+500	580	410
Spherical	–1400+1000	1300	880

Mechanical and corrosion properties of highly porous Ta-Nb-Sn alloy for intervertebral disc in spinal applications

Pubblicato online: 21 mar 2024

Pagine: 95 - 106

Ricevuto: 01 dic 2023

Accettato: 15 feb 2024

DOI: https://doi.org/10.2478/msp-2023-0048

Parole chiave
metal foam, Ta-Nb-Sn, spinal implant, intervertebral disc, powder metallurgy

© 2023 Berk Atay et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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Fig. 14.

Mean size of carbamide particles and mean pores size of the sintered foams

Mechanical and corrosion properties of highly porous Ta-Nb-Sn alloy for intervertebral disc in spinal applications

Pubblicato online: 21 mar 2024

Pagine: 95 - 106

Ricevuto: 01 dic 2023

Accettato: 15 feb 2024

DOI: https://doi.org/10.2478/msp-2023-0048

Parole chiavemetal foam, Ta-Nb-Sn, spinal implant, intervertebral disc, powder metallurgy

© 2023 Berk Atay et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1.

Fig. 2.

Fig. 3.

Fig. 4.

Fig. 5.

Fig. 6.

Fig. 7.

Fig. 8.

Fig. 9.

Fig. 10.

Fig. 11.

Fig. 12.

Fig. 13.

Fig. 14.

Mean size of carbamide particles and mean pores size of the sintered foams

Parole chiave
metal foam, Ta-Nb-Sn, spinal implant, intervertebral disc, powder metallurgy