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Comportamiento tribológico de materiales cerámicos de nitruro de silicio texturados

Authors: Belmonte, M.; Pablos, A. de; Miranzo, P.; Osendi, M.I.; Gomes, J.R.;

Comportamiento tribológico de materiales cerámicos de nitruro de silicio texturados

Abstract

Se han fabricado materiales densos de nitruro de silicio (Si3N4) texturados incorporando semillas de β- Si3N4, favoreciendo su alineación mediante extrusión de las piezas en verde y prensado en caliente. Estos materiales presentan elevada anisotropía microestructural que conduce a un comportamiento anisótropo de sus propiedades, tanto mecánicas como tribológicas. Se han realizado ensayos de desgaste en seco mediante movimiento recíproco lineal de pares homólogos con geometría esfera-placa. El material texturado presenta mayor resistencia al desgaste que el de referencia, sin texturar, identificándose como principal mecanismo de desgaste la abrasión debida a microfractura y arranque de granos de Si3N4. En este material, además, se desarrolla un tercer cuerpo que protege la superficie del material.

Peer reviewed

Country
Portugal
Keywords

Silicon nitride, Nitruro de Silicio, Tribological behaviour, Materiales texturados, Textured materials, Comportamiento tribológico

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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