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Sliding-wear resistance of ultrafine-grained SiC densified by spark plasma sintering with 3Y(2)O(3)+5Al(2)O(3) or Y3Al5O12 additives
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2013 (English)In: Scripta Materialia, ISSN 1359-6462, E-ISSN 1872-8456, Vol. 69, no 8, p. 598-601Article in journal (Refereed) Published
Abstract [en]

The sliding-wear behavior of ultrafine-grained SiC densified by spark plasma sintering (SPS) with 3Y(2)O(3) + 5Al(2)O(3) or Y3Al5O12 additives was compared to elucidate the effect of the intergranular-phase source. Significantly greater sliding-wear resistance (i.e. lower mild- and severe-wear rates, and delayed mild-to-severe wear transition) is observed with the Y3Al5O12 additive, due to its carbothermal reduction during SPS resulting in a harder YAlO3 phase while reducing the intergranular phase content. Implications for the processing of superior SiC triboceramics are discussed.

Place, publisher, year, edition, pages
2013. Vol. 69, no 8, p. 598-601
Keyword [en]
SiC, Sliding wear, Spark plasma sintering, Ultrafine-grained ceramics
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:su:diva-94856DOI: 10.1016/j.scriptamat.2013.07.007ISI: 000324456000009OAI: oai:DiVA.org:su-94856DiVA, id: diva2:656908
Note

AuthorCount:6;

Available from: 2013-10-17 Created: 2013-10-16 Last updated: 2017-12-06Bibliographically approved

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