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Researchers at IIT Have Reported New Data on Materials Engineering

February 26, 2014

By a News Reporter-Staff News Editor at Journal of Engineering -- A new study on Materials Engineering is now available. According to news reporting out of Saharanpur, India, by VerticalNews editors, research stated, "With the aim to produce a coating having good corrosion and wear resistance alongside hardness but lesser friction coefficient, Ni-P-PTFE-Al2O3 (NiPPA) dispersion coating was developed. This was achieved by introducing nanosized polytetrafluoroethylene (PTFE) and alumina (Al2O3) in the Ni-P matrix deposited on mild steel substrate."

Our news journalists obtained a quote from the research from IIT, "The coating was characterized using scanning electron microscopy, energy dispersive analysis of x-ray, and x-ray diffractrometry. Microhardness and wear resistance of the coating was measured using Vicker's hardness tester and Pin-on-Disc method, respectively. The corrosion behavior was measured using electrochemical polarization and immersion tests with and without exposure in 3.5% NaCl solution. It is observed that codeposition of Al2O3 and PTFE particles with Ni-P coating results in comparatively smooth surface with nodular grains. The NiPPA coating was observed to have moderate hardness between electroless Ni-P-PTFE and Ni-P-Al2O3 coating and good wear resistance with lubricating effect. Addition of both PTFE and Al2O3 is observed to enhance corrosion resistance of the Ni-P coating. However, improvement in corrosion resistance is more due to addition of Al2O3 than PTFE."

According to the news editors, the research concluded: "Continuous exposure for 10-20 days in corrosive solution is found to deteriorate corrosion protection properties of the coating."

For more information on this research see: Electroless Ni-P-PTFE-Al2O3 Dispersion Nanocomposite Coating for Corrosion and Wear Resistance. Journal of Materials Engineering and Performance, 2014;23(1):142-151. Journal of Materials Engineering and Performance can be contacted at: Springer, 233 Spring St, New York, NY 10013, USA. (Springer -; Journal of Materials Engineering and Performance -

Our news journalists report that additional information may be obtained by contacting A. Sharma, IIT Roorkee, Dept. of Appl Sci & Engn, Saharanpur 247001, India.

Keywords for this news article include: Asia, India, Saharanpur, Materials Engineering

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Source: Journal of Engineering

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