TECHNOLOGY OF ELECTROPLATING DEPOSITION OF HARDENING COATINGS ON THE BASE OF NICKEL AND ULTRA-DISPERSED TUNGSTEN OR MOLYBDENUM OXIDES
Contact:
Innovation division
phone/fax: (+375 17) 2095303
e-mail:
www.fhp.bsu.by

Research Institute of Physical-Chemical Problems of the Belarusian State University  
Address: 14, Leningradskaya str.,220050 Minsk,
Republic of Belarus

Purpose:

Surface hardening of component working in conditions of mechanical wear, friction and raising load by means of composite coatings "metal-oxide" deposition from electrolyte-suspension.

Area of application:

  • machine-building industry
  • instrument making
  • automotive industry

Technical characteristics:

oxides:
  range of W or Mo oxide's particles sizes, mkm 0,02–10

electrolytes:
  content of oxide's particles in nickel electrolyte, g/l 0,01–1
  deposition rate of composite coatings, mkm/h 18–20

metal-oxide composite coatings:
  oxides content in coatings (weight %) 0,5–4
  increasing of wear resistance relative to coatings without oxide's particles (times) 2–7
  increasing of critical load during friction up to destruction in comparison with individual nickel (times) 2–4

Advantages:

  • low cost of oxides synthesizing with new high effective methods
  • oxide's ability to codeposit with metal from standard electroplating bathes with preservation of their operation conditions
  • low effective oxide's concentration in electrolyte
  • increasing of composite coating's wear resistance, microhardness and decreasing of frictional coefficient relative to coatings without oxide's particles
  • stability of composite coating's properties in high-temperature working conditions

    • Forms of cooperation:

    You can purchase the technology know-how. We can manufacture small series of miniature articles with deposited composite coatings.

 

 
 
For additional information please contact us at:
phone: (+ 375 17) 2928342
fax: (+375 17) 2327183
e-mail:		 Ministry of Education for the Republic of Belarus