Estudio mediante técnicas interferométricas de las propiedades tribológicas de recubrimientos de ZrO<sub>2</sub> obtenidos por proyección térmica

J. M. Guilemany; S. Armada; J. M. Miguel

doi:10.3989/revmetalm.2001.v37.i2.458

Study of the tribological properties of ZrO₂ obtained by thermal spraying using the interferometric microscopy

Authors

J. M. Guilemany Centro de Proyección Térmica (CPT). ingeniería de Materiales. Dept. de ingeniería Química y Metalurgia. Universitat de Barcelona.
S. Armada Centro de Proyección Térmica (CPT). ingeniería de Materiales. Dept. de ingeniería Química y Metalurgia. Universitat de Barcelona.
J. M. Miguel Centro de Proyección Térmica (CPT). ingeniería de Materiales. Dept. de ingeniería Química y Metalurgia. Universitat de Barcelona.

DOI:

https://doi.org/10.3989/revmetalm.2001.v37.i2.458

Keywords:

Thermal barrier coatings, Thermal spraying, Tribological properties, Interferometry, Sintering,

Abstract

Thermal barrier coatings have a limited mechanical and tribological properties. The sintering thermal treatments can be used to improve these properties. In the present paper the evolution of some mechanical and tribological properties with different time of sintering at 1000 °C is evaluated. It was observed that the sintering thermal treatment produce an increase of the wear resistance, the hardness and the Young modulus. The Ball on disk tests were done using a sliding pair of ZrO₂ and steel and the main wear mechanisms for each case were studied. It was observed that the intersplat delamination and the brittle fracture where the main wear mechanisms during sliding process. The wear tracks were studied with scanning electron microscopy (SEM) and scanning white light interferometry (SWLI) so as to quantify the wear for each case. It was necessary to do a gold sputtering to increase the electric conductivity and reflection of the ZrO₂ samples for their study by SEM and SWLI respectively.

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Published

2001-04-30

How to Cite

Guilemany, J. M., Armada, S., & Miguel, J. M. (2001). Study of the tribological properties of ZrO2 obtained by thermal spraying using the interferometric microscopy. Revista De Metalurgia, 37(2), 161–165. https://doi.org/10.3989/revmetalm.2001.v37.i2.458

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Issue

Vol. 37 No. 2 (2001)

Section

Articles

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