A simple route to produce tungsten carbide powders by high-energy ball milling and annealing

被引:11
作者
Fernique, R. M. T. [1 ]
Savoie, S. [2 ]
Gariepy, M. [3 ,5 ]
Braidy, N. [1 ,4 ]
Schulz, R. [2 ]
机构
[1] Univ Sherbrooke, Fac Engn, Chem & Biotechnol Engn Dept, Sherbrooke, PQ J1K 2R1, Canada
[2] Hydroquebec Res Inst, 1800 Blvd Lionel Boulet, Varennes, PQ J3X 1S1, Canada
[3] Wartsila Canada Inc, 8600 St Patrick, La Salle, PQ H8N 1V1, Canada
[4] Univ Sherbrooke, 3IT, 3000 Blvd Univ, Sherbrooke, PQ J1K OA5, Canada
[5] Cascades CS Inc, 465 Blvd Marie Victorin, Kingsey Falls, PQ J0A 1B0, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
Tungsten carbide; Mechanical alloying; X-ray diffraction; SEM; WEAR BEHAVIOR; IN-SITU; EX-SITU; WC; COATINGS; PLASMA; HVOF; RESISTANCE; EVOLUTION;
D O I
10.1016/j.ceramint.2019.09.147
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Tungsten carbide powders are extensively used to provide wear-resistance properties to metal-matrix coatings. Here, we propose a simple and efficient route for the production of WC powders from elemental W and C by room-temperature high-energy ball milling (HEBM) and subsequent annealing. WC powders were obtained, with a minor (< 4Wowt.) iron contamination, with only 4 h of milling of a W/C atomic mixture of 42/58 and 90min anneal at 1000 degrees C. This innovative and simple route to produce WC powders can be used to produce feedstock of reinforcing particles intended for wear resistant coatings. We explored the impact of the milling times (from 6min to 96 h), compositions (W:C ratio of 1, 1.17 and 1.38) and annealing conditions ranging from 4 h at 850 degrees C to 90 min at 1000 degrees C. The samples were analyzed for phase distribution and composition using XRD, SEM with EDX mapping, XRF and TGA. As expected, milling induces amorphization and introduces iron from the milling media. We show that an excess of C can efficiently suppress the formation of deleterious tungsten carbides.
引用
收藏
页码:1736 / 1742
页数:7
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