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Influence of applied pressure during field-assisted sintering of Ti(C,N)-WC-FeAl based nanocomposite
2015 (Engelska)Ingår i: Ceramics International, ISSN 0272-8842, E-ISSN 1873-3956, Vol. 41, nr 2, s. 1986-1993Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Ti(C,N)-WC-FeAl based nanocomposites are processed by field-assisted sintering at 1500 degrees C. The phase and microstructural evolution during the process under the influence of different applied pressures of 30, 50 and 100 MPa are studied using x-ray diffraction and scanning electron microscopy. Lattice parameters of (Ti,W)(C,N) solid solution and binder phases after sintering are found to vary with applied pressure. The nanocomposite grains are observed to possess a core-rim microstructure. Microstructural variations in terms of type, size and fraction of "corerim" structure as a function of applied pressure are investigated. The hardness and indentation fracture toughness values are in the range of 17.6-18.4 GPa and 5.9-6.8 MPa root m, respectively. These values are comparable with those reported for Ti(C,N)-based composites with metal binder. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

Ort, förlag, år, upplaga, sidor
2015. Vol. 41, nr 2, s. 1986-1993
Nyckelord [en]
Sintering, Nanocomposites, Mechanical properties, Cutting tools, FINE TIC0.7N0.3-BASED CERMET, MECHANICAL-PROPERTIES, TI(C, N)-BASED, CERMETS, N)-BASED CERMETS, CUTTING TOOLS, MICROSTRUCTURE, COMPOSITES, FRACTURE, TI(C, PERFORMANCE, Materials Science, Ceramics
Nationell ämneskategori
Keramteknik
Forskningsämne
TEKNIK, Produktions- och materialteknik
Identifikatorer
URN: urn:nbn:se:hv:diva-8414OAI: oai:DiVA.org:hv-8414DiVA, id: diva2:859825
Tillgänglig från: 2015-10-08 Skapad: 2015-10-08 Senast uppdaterad: 2017-12-01Bibliografiskt granskad

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