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Friction and wear behavior of a PMMA-SiO2 coating on hardened steel

Published online by Cambridge University Press:  10 February 2014

Luis E. Torres-Parga ,
Carolina Hernández-Navarro ,
Karla J. Moreno-Bello ,
J.S. García-Miranda ,
Luis D. Aguilera-Camacho ,
Raúl Lesso-Arroyo ,
Benjamín Arroyo-Ramírez  and
Álvaro Sánchez-Rodríguez
Luis E. Torres-Parga
Affiliation:
Department of Mechanical Engineering, Technological Institute of Celaya, Celaya, Guanajuato, Mexico
Carolina Hernández-Navarro
Affiliation:
Department of Mechanical Engineering, Technological Institute of Celaya, Celaya, Guanajuato, Mexico
Karla J. Moreno-Bello
Affiliation:
Department of Mechanical Engineering, Technological Institute of Celaya, Celaya, Guanajuato, Mexico
J.S. García-Miranda
Affiliation:
Department of Mechanical Engineering, Technological Institute of Celaya, Celaya, Guanajuato, Mexico
Luis D. Aguilera-Camacho
Affiliation:
Department of Mechanical Engineering, Technological Institute of Celaya, Celaya, Guanajuato, Mexico
Raúl Lesso-Arroyo
Affiliation:
Department of Mechanical Engineering, Technological Institute of Celaya, Celaya, Guanajuato, Mexico
Benjamín Arroyo-Ramírez
Affiliation:
Department of Mechanical Engineering, Technological Institute of Celaya, Celaya, Guanajuato, Mexico
Álvaro Sánchez-Rodríguez
Affiliation:
Department of Mechanical Engineering, Technological Institute of Celaya, Celaya, Guanajuato, Mexico
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Abstract

Sol-gel coatings show an excellent chemical stability, oxidation control and enhanced corrosion resistance for metal substrates. An organic-inorganic hybrid consisting of poly (methyl methacrylate) (PMMA) and silica (SiO2) was successfully synthesized in the form of solution, by using 3-(trimethoxysilyl) propyl methacrylate (TMSPM) as a coupling agent and cohydrolyzed with tetraethyl orthosilicate (TEOS) to afford chemical bondings to the forming silica networks by a sol-gel method. The as-synthesized hybrid material was subsequently characterized by Fourier Transformation infrared (FTIR) spectroscopy. PMMA-SiO2 was applied as a protective film on hardness steel substrates by dip-coating. The thickness of the coating was 25 µm, while the roughness Ra = 0.6 µm. The wear and friction behavior of the coating on hardened steel (HS) was evaluated by a ball-on-disk test in dry conditions with a AISI steel ball as counterface applying 2, 4, 6, 8 and 10 N normal loads. Friction coefficient values (µk) were in the range of 0.76 to 0.99, whereas the lowest wear rate (k) was observed at 6N with a value of 1.30x10-4 (mm3(Nm)-1).

Keywords

steelcoatingwear
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1613: Symposium 4D – New Trends in Polymer Chemistry and Characterization-2013 , 2014 , pp. 109 - 114
Copyright
Copyright © Materials Research Society 2014 

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