Spark plasma sintering and characterization of ZrC-TiB2 composites |
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| Affiliation: | 1. Department of Materials Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran;2. Department of Materials Science and Engineering, University of Tabriz, Tabriz, Iran;3. Chemistry and Chemical Engineering Research Center of Iran, Iran;1. Mimar Sinan Fine Arts University, Material Research Center for Cultural Property and Artworks, Cumhuriyet Mahallesi Silahşör Caddesi No:71, Bomonti/Şişli, 34380 İstanbul, Turkey;2. Mimar Sinan Fine Arts University, School of Conservation and Restoration of Movable Cultural Property, Cumhuriyet Mahallesi Silahşör Caddesi No:71, Bomonti/Şişli, 34380 İstanbul, Turkey;3. Mimar Sinan Fine Arts University, Department of Art History, Cumhuriyet Mahallesi Silahşör Caddesi No:71, Bomonti/Şişli, 34380 İstanbul, Turkey;1. Bengbu College, Bengbu 233000, Anhui, China;2. School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, Anhui, China;3. Yucheng New Material Science and Technology Co. Ltd., Bengbu 233000, China |
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| Abstract: | ZrC-based composites were consolidated from ZrC and TiB2 powders by the Spark Plasma Sintering (SPS) technique at 1685 °C and 1700 °C for 300 s under 40-50-60 MPa. Densification, crystalline phases, microstructure, mechanical properties and oxidation behavior of the composites were investigated. The sintered bodies were composed of a (Zr,Ti)C solid solution and a ZrB phase. The densification behaviors of the composites were improved by increasing the TiB2 content and applied pressure. The highest value of hardness, 21.64 GPa, was attained with the addition of 30 vol% TiB2. Oxidation tests were performed at 900 °C for 2 h and the formation of ZrO2, TiO2 and B2O3 phases were identified by using XRD. |
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| Keywords: | Zirconium carbide Titanium diboride Spark plasma sintering |
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