Electrochemical and Corrosion Behavior of Nanocrystalline TiNi-Based Alloys and Composite

• Authors: M. Balcerzak , M. Jurczyk
• Languages of publication: EN

Abstracts

EN

In this work TiNi-based nanocrystalline alloys and composite were produced by mechanical alloying process with subsequent annealing at 750°C for 0.5 h. Mechanical alloying was performed in a SPEX 8000 Mixer Mill. TiNi alloy was chemically modified by Ag elemental powder. Silver content equaled 5 wt%. X-ray diffraction analyses revealed formation of TiNi main phase after annealing. Additionally, two minor phases Ti_2Ni and TiNi_3 were detected for unmodified alloy. Crystallites of obtained powders were nanosized. Corrosion and electrochemical measurements were performed in 6 M KOH solution. All synthesized materials were used as negative electrode for Ni-MH_x batteries. Ag addition positively affects on stability of discharge capacity of TiNi alloy during of charge/discharge tests.

Keywords

EN

82.47.Cb; 88.30.rd

Discipline

• 82.47.Cb: Lead-acid, nickel-metal hydride and other batteries(for lithium-ion batteries, see 82.47.Aa)
• 88.30.rd: Inorganic metal hydrides

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 4
• Pages: 888-891

Dates

published

2014-10

Contributors

author

M. Balcerzak

• Institute of Materials Science and Engineering, Poznań University of Technology, pl. M. Skłodowskiej-Curie 5, 60-965 Poznań, Poland

author

M. Jurczyk

• Institute of Materials Science and Engineering, Poznań University of Technology, pl. M. Skłodowskiej-Curie 5, 60-965 Poznań, Poland

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Identifiers

DOI

10.12693/APhysPolA.126.888