Sliding-wear resistance of ultrafine-grained SiC densified by spark plasma sintering with 3Y2O3+5Al2O3 or Y3Al5O12 additives

Autor:	Oscar Borrero-López, Fernando Guiberteau, Angel L. Ortiz, Esther Ciudad, Estíbaliz Sánchez-González, Mats Nygren
Rok vydání:	2013
Předmět:	Materials science Mechanical Engineering education Metallurgy Metals and Alloys Spark plasma sintering Intergranular corrosion equipment and supplies Condensed Matter Physics Mechanics of Materials Carbothermic reaction Phase (matter) General Materials Science Sliding wear
Zdroj:	Scripta Materialia. 69:598-601
ISSN:	1359-6462
DOI:	10.1016/j.scriptamat.2013.07.007
Popis:	The sliding-wear behavior of ultrafine-grained SiC densified by spark plasma sintering (SPS) with 3Y2O3 + 5Al2O3 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a061b9d61d05fded319f98ce19be0e57 https://doi.org/10.1016/j.scriptamat.2013.07.007 Zobrazit plný text záznamu Full Text from ScienceDirect