NDLI: Nanoindentation Studies of Contact Materials Used for Sliding Electrical Contacts

Content Provider	IEEE Xplore Digital Library
Author	Holzapfel, C.
Copyright Year	2008
Description	Author affiliation: Schleifring & Apparatebau GmbH, Furstenfeldbruck (Holzapfel, C.)
Abstract	Nanoindentation is used to probe the local mechanical properties of materials such as hardness or elastic modulus. In addition, modern instruments also allow scanning the surface using either the nanoindenter or the sample stage in order to derive the 3D surface topography. The aim of the investigations described in this paper is two-fold: Firstly, hardness and elastic modulus measurements of some selected materials, especially thin hard-gold layers, are described. Secondly, the stage movement of the nanoindenter (G200, MTS) is used to probe the 3D surface structure and the potential of this method to quantify wear is studied. It is shown that the surface structure of materials used for sliding electrical contacts makes precise measurement of hardness and elastic modulus challenging. The reason is that smooth surfaces are not necessarily good electrical contacts. However, a nanohardness experiment normally necessitates a flat geometry at the measurement position. Hence, caution is required when comparing values derived from samples with different surface structures. Surface analysis of a wear track of a sliding electrical contact employing a pancake slip ring design was performed. A comparison with results obtained using confocal microscopy shows that the indenter system can successfully be used for elucidating the surface structure from the micrometer to the millimetre scale.
Starting Page	90
Ending Page	97
File Size	1984854
Page Count	8
File Format	PDF
ISBN	9781424419012
DOI	10.1109/HOLM.2008.ECP.28
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-27
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Contacts Surface topography Surface structures Probes Mechanical factors Instruments Electric variables measurement Geometry Position measurement Performance analysis
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Characterization of sliding Al-Cu Electrical contacts

The evaluation of arc erosion on electrical contacts using three-dimensional surface profiles

Contact surfaces for sliding electrical contacts

Intermittence detection in fretting corrosion studies of electrical contacts

A holographic measurement of microscopical sliding of electrical contact due to contact spring thermal deformation

An AFM-based device for in-situ characterization of nano-wear

Performance improvement for sliding contacts utilizing tip polishing

Evaluation of the volumetric erosion of spherical electrical contacts using the defect removal method

Experimental study on damage analysis of sliding contact surface by using shadow image processing technique

Nanoindentation Studies of Contact Materials Used for Sliding Electrical Contacts

Similar Documents

Characterization of sliding Al-Cu Electrical contacts

The evaluation of arc erosion on electrical contacts using three-dimensional surface profiles

Contact surfaces for sliding electrical contacts

Intermittence detection in fretting corrosion studies of electrical contacts

A holographic measurement of microscopical sliding of electrical contact due to contact spring thermal deformation

An AFM-based device for in-situ characterization of nano-wear

Performance improvement for sliding contacts utilizing tip polishing

Evaluation of the volumetric erosion of spherical electrical contacts using the defect removal method

Experimental study on damage analysis of sliding contact surface by using shadow image processing technique

Nanoindentation Studies of Contact Materials Used for Sliding Electrical Contacts