Institutional Repository of Coll Mat Sci & Engn
| Effect of Carbon Content on Morphology, Size and Phase of Submicron Tungsten Carbide Powders by Salt-assisted Combustion Synthesis | |
La Peiqing1; Ou Yujing2; Han Shaobo1; Wei Yupeng1 ; Zhu Dandan2; Feng Jing2
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| 2016 | |
| Source Publication | 稀有金属材料与工程
 |
| ISSN | 1002-185X |
| Volume | 45Issue:4Pages:853-857 |
| Abstract | The diluent NaCl was introduced into the WO_3-Mg-C-Na_2CO_3 system to prepare submicron tungsten carbide(WC) powders via salt-assisted combustion synthesis. The products were analyzed by SEM, EDS and XRD, and the effects of C content on morphology, average particle size and phase composition of the products were studied. Results show that on basis of the m= 0.125(the number of moles of Na_2CO_3), when the number of moles of carbon in raw material increases from l=2 to 2.25 and 2.5, before leaching, the product is made up of a small number of large size particles and a large number of small size particles; after leaching, samples are composed of aggregates of submicron particles, and the sintering phenomenon between particles is very weak, indicating low degree of aggregation. Particle size distribution of leached product almost falls into the normal distribution, and the particle sizes range from 200 nm to 350 nm. Under the condition of l=2.25, a main target product is WC, and the content of by-products W_2C is extremely few. That is, k= 2.0(the number of moles of NaCl), m= 0.125, and l=2.25 are the process conditions for single-phase WC synthesis. |
| Keyword | carbon content salt-assisted combustion synthesis tungsten carbide powders morphology phase |
| Indexed By | CSCD |
| Language | 英语 |
| WOS Research Area | Engineering |
| WOS Subject | ENGINEERING INDUSTRIAL |
| CSCD ID | CSCD:5691253 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.lut.edu.cn/handle/2XXMBERH/71598 |
| Collection | 材料科学与工程学院 |
| Affiliation | 1.Lanzhou University of Science and Engineering, State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou, Gansu 730050, China 2.School of Petrochemical Engineering, Lanzhou University of Science and Engineering, Lanzhou, Gansu 730050, China |
| Recommended Citation GB/T 7714 | La Peiqing,Ou Yujing,Han Shaobo,et al. Effect of Carbon Content on Morphology, Size and Phase of Submicron Tungsten Carbide Powders by Salt-assisted Combustion Synthesis[J]. 稀有金属材料与工程,2016,45(4):853-857. |
| APA | La Peiqing,Ou Yujing,Han Shaobo,Wei Yupeng,Zhu Dandan,&Feng Jing.(2016).Effect of Carbon Content on Morphology, Size and Phase of Submicron Tungsten Carbide Powders by Salt-assisted Combustion Synthesis.稀有金属材料与工程,45(4),853-857. |
| MLA | La Peiqing,et al."Effect of Carbon Content on Morphology, Size and Phase of Submicron Tungsten Carbide Powders by Salt-assisted Combustion Synthesis".稀有金属材料与工程 45.4(2016):853-857. |
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