Spark plasma sintering of (Ti0.9W0.1) C powders prepared by mechanical alloying |
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| Affiliation: | 1. Laboratoire des matériaux utiles, Institut National de Recherche et d’Analyse Physico-chimique, Pôle technologique de Sidi Thabet, 2020 Sidi Thabet, Tunisia;2. Ecole Supérieure des Ingénieurs de l’Equipement Rural, Medjez El Bab, 9070, Tunisia;3. Laboratoire des Sciences des Procédés et des Matériaux, CNRS-UPR 9001, Université Paris 13, 93430 Villetaneuse, France;1. Department of Materials Engineering, Faculty of Engineering, Malayer University, Malayer 65719-95863, Iran;2. School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran 16846-13114, Iran;1. School of Manufacturing Science and Engineering, Sichuan University, Chengdu 610065, PR China;2. The Analysis and Testing Centre, Sichuan University, Chengdu 610065, PR China |
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| Abstract: | Nanocrystalline (Ti0.9W0.1)C powder with a diffraction crystallite size of about 10 nm was synthesized by mechanical alloying. The formation of (Ti0.9W0.1)C carbide was detected by XRD measurements and microscopic observation. The sintering of these powders by a spark plasma sintering (SPS) at different temperatures were also studied. The results show that the maximum hardness was obtained for more relative density materials, meanwhile, the grain size is large. The micro-hardness and the relative density of the powder milled for 10 h and sintered at 1200 °C for 5 min under 100 MPa reach, respectively, 2978 HV and 98.35%. |
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