NDLI: Electroless Ni-B and Ni-P coatings with high-fretting resistance for electrical contact applications

Content Provider	IEEE Xplore Digital Library
Author	Dervos, C.T. Novakovic, J. Vassiliou, P.
Copyright Year	2004
Description	Author affiliation: Sch. of Electr. & Comput. Eng., Athens Nat. Tech. Univ., Greece (Dervos, C.T.; Novakovic, J.)
Abstract	Electroless nickel-phosphorus and nickel-boron plating have been tried on steel and brass substrates. By selected conditions of heat treatment in a high vacuum environment the plating can produce more than chromium equivalent hardness without the effluents of the hard chromium plating process. The resulting surfaces of Ni-P and Ni-B were examined and characterized under an optical and a scanning electron microscope. XRD analysis was also performed to investigate re-crystallization effects. The fabricated contact materials were also tested under corrosion conditions, and linear polarization measurements were performed. The electrical contact resistance of the deposits was also recorded during a 10,000 cycle test. The results show that after the heat treatment in a high vacuum environment the platings acquire a crystalline microstructure, with very good adhesion to the substrate materials (steel or brass). In addition, the microhardness of vacuum heat treated Ni-P coatings attained values of 1200 HV, while the nickel-boron coatings acquired an even higher microhardness, exceeding 1600 HV. The electrical performance of the fabricated layers showed that after thermal treatment the contact resistance remained almost unaffected. However, the Ni-B overlayers systematically exhibit lower contact resistance profiles. The above materials could be practically utilized whenever a good electrical performance of a hard engineering coating is required.
Sponsorship	Components, Packaging, and Manuf. Technol. Soc. of the Inst. of Electr. and Electron. Eng., Inc
Starting Page	281
Ending Page	288
File Size	1098375
Page Count	8
File Format	PDF
ISBN	0780384601
DOI	10.1109/HOLM.2004.1353131
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-09-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Coatings Electric resistance Contact resistance Heat treatment Steel Chromium Optical microscopy Crystalline materials Effluents Surface resistance
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

Study on the alleviating fretting wear property of Ni-Tl-B coatings

Vacuum heated electroless nickel plated contacts

Evaluation of the performance of electroless Ni-B coated brass contacts under fretting conditions

Electroless Ni-P/Ni-W-P thin-film resistors for MCM-L based technologies

Fretting Behavior of Nickel Coatings for Electrical Contact Applications

The Study of Electroless Plating of Ni-Cr-P/Ni-P Composite Coating on Sintered Nd-Fe-B Permanent Magnet

Wear Behaviour of Electroless heat Treated Ni-P Coatings as Alternative to Electroplated hard Chromium Deposits

Electroless Ni-W-P/Ni-B duplex coatings on AZ91D magnesium alloy

Electroless Ni-P resistors for fusing roll

Electroless Ni-B and Ni-P coatings with high-fretting resistance for electrical contact applications

Similar Documents

Study on the alleviating fretting wear property of Ni-Tl-B coatings

Vacuum heated electroless nickel plated contacts

Evaluation of the performance of electroless Ni-B coated brass contacts under fretting conditions

Electroless Ni-P/Ni-W-P thin-film resistors for MCM-L based technologies

Fretting Behavior of Nickel Coatings for Electrical Contact Applications

The Study of Electroless Plating of Ni-Cr-P/Ni-P Composite Coating on Sintered Nd-Fe-B Permanent Magnet

Wear Behaviour of Electroless heat Treated Ni-P Coatings as Alternative to Electroplated hard Chromium Deposits

Electroless Ni-W-P/Ni-B duplex coatings on AZ91D magnesium alloy

Electroless Ni-P resistors for fusing roll

Electroless Ni-B and Ni-P coatings with high-fretting resistance for electrical contact applications