Institutional Repository of Coll Mat Sci & Engn
Effect of NaCl Addition on Properties of Submicron Titanium Diboride Powders Prepared by Self-propagating High-temperature Synthesis on a Large Scale | |
La Peiqing1; Ou Yujing2; Han Shaobo1; Lu Xuefeng1; Wei Yupeng1![]() | |
2015 | |
发表期刊 | 材料工程
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ISSN | 1001-4381 |
卷号 | 43期号:7页码:14-20 |
摘要 | Submicron titanium diboride (TiB_2) powders were prepared on macroscopic quantity via self-propagating high-temperature synthesis route using TiO_2,B_2O_3 and Mg powders as raw materials and NaCl as diluent. Scanning electron microscope,Energy disperse spectroscopy, X-ray diffraction and particle size analysis were used to investigate the effect of NaCl on the resulting samples. The content of Mg and O impurities in the leached TiB_2 powders was determined by atomic absorption spectrum. Results show that NaCl addition has an obvious effect on the morphology, average particle size and phase composition of the product. Average particle size of TiB_2 powders decreases from 496nm to 268nm with the increase of NaCl content. All the samples before leaching consist of MgO,NaCl, TiB_2 and a small amount of Mg_3B_2O_6 phases. After leaching, the first two phases disappear and the main product is TiB_2 and slight Mg_3B_2O_6. When NaCl addition (k value) is 0.5, 1.0, 1.5,2. Omol, the leached product contains less Mg_3B_2O_6 impurity phase, and product purity is over 98%. The addition of NaCl diluent is conductive to reduce the particle size and improve the product purity. Therefore submicron TiB_2 powders can be prepared via this approach on a large scale. |
关键词 | submicron TiB_2 powder diluent self-propagating high-temperature synthesis morphology phase |
收录类别 | CSCD |
语种 | 英语 |
WOS研究方向 | Engineering |
WOS类目 | ENGINEERING INDUSTRIAL |
CSCD记录号 | CSCD:5472763 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/70847 |
专题 | 材料科学与工程学院 |
作者单位 | 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 |
推荐引用方式 GB/T 7714 | La Peiqing,Ou Yujing,Han Shaobo,et al. Effect of NaCl Addition on Properties of Submicron Titanium Diboride Powders Prepared by Self-propagating High-temperature Synthesis on a Large Scale[J]. 材料工程,2015,43(7):14-20. |
APA | La Peiqing,Ou Yujing,Han Shaobo,Lu Xuefeng,&Wei Yupeng.(2015).Effect of NaCl Addition on Properties of Submicron Titanium Diboride Powders Prepared by Self-propagating High-temperature Synthesis on a Large Scale.材料工程,43(7),14-20. |
MLA | La Peiqing,et al."Effect of NaCl Addition on Properties of Submicron Titanium Diboride Powders Prepared by Self-propagating High-temperature Synthesis on a Large Scale".材料工程 43.7(2015):14-20. |
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