CETMIC   05378
CENTRO DE TECNOLOGIA DE RECURSOS MINERALES Y CERAMICA
Unidad Ejecutora - UE
artículos
Título:
Sliding wear of CaZrO3-MgO composites against ZrO2and steelAbílio
Autor/es:
AGLIETTI E F F.BOOTH1,2, L GARRIDO2, P. PENA1 Y C. BAUDÍN1
Revista:
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Editorial:
ELSEVIER SCI LTD
Referencias:
Lugar: Amsterdam; Año: 2017 vol. 37 p. 297 - 303
ISSN:
0955-2219
Resumen:
tThe wear behaviour of a fine grained and dense CaZrO3-MgO composite is presented. Un-lubricated Pin-on-disc tests at room temperature have been performed using 10 N as normal force and 0.10?0.15 ms-1as sliding rate and ZrO2and steel counterparts. The coefficient of friction versus the sliding distanceand the specific wear, together with a complete microstructural analysis of the worn surfaces by fieldemission scanning electron microscopy is reported. The composite presents a wear resistance similarto other ceramics under ceramic/ceramic sliding contact and improved wear resistance in contact withsteel.Initial wear is dominated by abrasion independently of the chemical nature of the counterpart. Thesecond stage wear depends on the characteristics of the third body formed. Zirconia leads to a brittleparticulate third body with little protective capability. Steel forms a strongly bonded and plastic cermetthird body that protects the material limiting the level of further wear.© 2016 Elsevier Ltd. All rights reserved