Influence of phase composition on the sliding wear of composites in the system CaZrO3–MgO–ZrO2 against ZrO2 and steel

An attractive way to obtain low cost calcium zirconate (CaZrO3) composites is mixing natural limestone or dolomite with zirconia. These CaZrO3 based ceramic composites were often investigated as a promising high refractory for casting metal alloys, cements, thermal and environmental barrier coating. In this study the sliding wear, fracture mechanism and friction properties of a CaZrO3-MgO-ZrO2 ceramic against ZrO2 and steel counter bodies was carried out. Wear and fracture surface mechanisms, influence of its impurities and individual phases are discussed. The composite presents a coefficient of friction higher in ceramic/metal than in ceramic/ceramic pair, but the specific wear it is significantly higher when tested with the ZrO2 ball. The fracture surfaces presenta dominant transgranular fracture when tested with steel and intergranular fracture against ZrO2.

Palabras clave: CAZRO3-MGO-ZRO2 , WEAR FRACTURE MECHANISM , SIO2 EFFECT , DOLOMITE

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Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)

Identificadores

URI: http://hdl.handle.net/11336/102748

URL: http://linkinghub.elsevier.com/retrieve/pii/S0167844216301215

DOI: http://dx.doi.org/10.1016/j.tafmec.2016.08.017

Colecciones

Articulos(CETMIC)
Articulos de CENTRO TECNOL.DE REC.MINERALES Y CERAMICA (I)

Citación

Silva, Abílio; Booth, Raul Fernando Nicolas; Garrido, Liliana Beatriz; Aglietti, Esteban Fausto; Pena, Pilar; et al.; Influence of phase composition on the sliding wear of composites in the system CaZrO3–MgO–ZrO2 against ZrO2 and steel; Elsevier Science; Theoretical And Applied Fracture Mechanics; 85; 10-2016; 125-133

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