Heavy-duty contact materials

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Project abstract

In future smart grids, with a high amount of renewables and local power generation there will be substantial power variations over time and geographically. Switching devices, e.g. tap-changer, are used for fine-tuning the ratio of a transformer and hence the output voltage. Switching devices contain many moving parts which operate under harsh conditions. Silver is one of the commonly used contact materials due to its excellent electrical properties. However, the high cost and the poor mechanical properties such as high wear and friction of silver shorten its lifetime. The main goal of this project is to develop new electrical contact materials with lower cost and longer lifetime.

Summary of work

2015. Optimization of the preparation methods of different electrical contact materials. Preparation of different electrical contact alloys Characterization of the prepared alloys. Sintering of bulk contact samples.

Event log

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Project reference-group

Ulf Jansson,  UU
Anna Andersson,  ABB Corporate Research
Åsa Kassman,  UU
Mikael Olsson,  Högskolan i Dalarna
Henrik Ljungkratz,  Impact Coatings
Erik Johansson,  ABB Corporate Research
Niklas Gustafsson,  ABB HV Components

Publications by this researcher

See alternatively the researcher's full DiVA list of publications, with options for sorting.
Publications in journals and conferences usually will not show until a while after they are published.

Microstructure and phase composition of the Ag-Al film wear track : Through-thickness characterization by advanced electron microscopy
O. Kryshtal,   A. Kruk,   Fang Mao,   Mamoun Taher,   Ulf Jansson,   A. Czyrska-Filemonowicz.
2019,   Archives of Metallurgy and Materials, vol. 64(1)

The Influence of Chemical and Phase Composition on Mechanical, Tribological and Electrical Properties of Silver-Aluminum alloys
Mamoun Taher,   Fang Mao,   Pedro Berastegui,   Anna M. Andersson,   Ulf Jansson.
2018,   Tribology International, vol. 119

Tuning tribological, mechanical and electrical properties of Ag-X (X=Al, In, Sn) alloys
Mamoun Taher,   Fang Mao,   Pedro Berastegui,   Anna M. Andersson,   Ulf Jansson.
2018,   Tribology International, vol. 125

On the electro-tribological properties and degradation resistance of silver-aluminum coatings
Inigo Braceras,   Inigo Ibanez,   Mamoun Taher,   Fang Mao,   Andres del Barrio,   Saioa Saenz De Urturi,   Pedro Berastegui,   Anna M. Andersson,   Ulf Jansson.
2018,   Wear, vol. 414

Combinatorial Study of Gradient Ag-Al Thin Films : Microstructure, Phase Formation, Mechanical and Electrical Properties
Fang Mao,   Mamoun Taher,   Oleksandr Kryshtal,   Adam Kruk,   Aleksandra Czyrska-Filemonowicz,   Mikael Ottosson,   Anna M. Andersson,   Urban Wiklund,   Ulf Jansson.
2016,   ACS Applied Materials and Interfaces, vol. 8(44)

Publication list last updated from DiVA on 2024-01-10 15:22.

Page started: 2015-09-01
Last generated: 2024-01-10