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Article

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Published version

Publication date

2014-02

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/54385

Hardness of FRHC-Cu determined by statistical analysis

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http://dx.doi.org/10.1007/s11665-013-0770-1

Abstract

A statistical indentation method has been employed to study the hardness value of fire-refined high conductivity copper, using nanoindentation technique. The Joslin and Oliver approach was used with the aim to separate the hardness (H) influence of copper matrix, from that of inclusions and grain boundaries. This approach relies on a large array of imprints (around 400 indentations), performed at 150 nm of indentation depth. A statistical study using a cumulative distribution function fit and Gaussian simulated distributions, exhibits that H for each phase can be extracted when the indentation depth is much lower than the size of the secondary phases. It is found that the thermal treatment produces a hardness increase, due to the partly re-dissolution of the inclusions (mainly Pb and Sn) in the matrix.

Subject

Coure, Conductivitat elèctrica, Propietats mecàniques, Mètodes estadístics

Subject (English)

Copper, Electric conductivity, Mechanical properties, Statistical methods

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Articles publicats en revistes (Ciència dels Materials i Química Física)

Citation

ROA ROVIRA, Joan Josep, et al. Hardness of FRHC-Cu determined by statistical analysis. Journal of Materials Engineering and Performance. 2014. Vol. 23, num. 2, pags. 637-642. ISSN 1059-9495. [consulted: 10 of June of 2026]. Available at: https://hdl.handle.net/2445/54385

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