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arXiv · 2307.08757

First Results From Nanoindentation of Vapor Diffused Nb3Sn Films on Nb

U. Pudasaini·G. V. Eremeev·S. Cheban
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Abstract

The mechanical vulnerability of the Nb3Sn-coated cavities is identified as one of the significant technical hurdles toward deploying them in practical accelerator applications in the not-so-distant future. It is crucial to characterize the material's mechanical properties in ways to address such vulnerability. Nanoindentation is a widely used technique for measuring the mechanical properties of thin films that involves indenting the film with a small diamond tip and measuring the force-displacement response to calculate the film's elastic modulus, hardness, and other mechanical properties. The nanoindentation analysis was performed on multiple vapor-diffused Nb3Sn samples coated at Jefferson Lab and Fermilab coating facilities for the first time. This contribution will discuss the first results obtained from the nanoindentation of Nb3Sn-coated Nb samples prepared via the Sn vapor diffusion technique.

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U. Pudasaini, G. V. Eremeev, S. Cheban. 2023-07-17. First Results From Nanoindentation of Vapor Diffused Nb3Sn Films on Nb. https://arxiv.org/abs/2307.08757

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