A study of tungsten nanopowder formation by self-propagating high-temperature synthesis

H.H. Nersisyan; J.H. Lee; C.W. Won

首页> 外文期刊>Combustion and Flame >A study of tungsten nanopowder formation by self-propagating high-temperature synthesis

【24h】

A study of tungsten nanopowder formation by self-propagating high-temperature synthesis

机译：自蔓延高温合成钨纳米粉体的研究

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

Molten salt-assisted self-propagating high-temperature synthesis of nanocrystalline W powder was studied experimentally. The technique involves the reduction of WO_3 in the presence of sodium chloride using three different reducing agents: magnesium (Mg), sodium azide (NaN_3), and sodium borohydride (NaBH_4). The effects of the mole fraction of sodium chloride on temperature distributions, combustion parameters, phase compositions, and morphology of the final products were determined. The sodium chloride-assisted method reported here has been found to be effective for lowering combustion temperature and producing uniform and spherical W nanopow-ders of average particle size around 20-200, 100-200, and 20-50 nm. The effect of combustion temperature on tungsten particle size is discussed, and a sketch describing the chemistry of combustion is proposed.

机译：实验研究了熔融盐辅助自蔓延高温合成纳米晶W粉的过程。该技术涉及使用三种不同的还原剂在氯化钠存在下还原WO_3：镁（Mg），叠氮化钠（NaN_3）和硼氢化钠（NaBH_4）。确定了氯化钠的摩尔分数对温度分布，燃烧参数，相组成和最终产物形态的影响。已发现此处报道的氯化钠辅助方法可有效降低燃烧温度并生产平均粒径约为20-200、100-200和20-50 nm的均匀球形W纳米粉。讨论了燃烧温度对钨粒度的影响，并提出了描述燃烧化学的草图。

著录项

来源
《Combustion and Flame》 |2005年第3期|p.241-248|共8页
作者
H.H. Nersisyan; J.H. Lee; C.W. Won;
展开▼
作者单位

Rapidly Solidified Materials Research Center, Chungnam National University, 220 Gung-Dong, Yuseong, Daejeon 305-764, Republic of Korea;

展开▼
收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类燃料与燃烧;
关键词
self-propagating high-temperature synthesis; temperature distributions; combustion spesd; tungsten nanopowders; particle size; molten salt;

机译：自蔓延高温合成;温度分布;燃烧速率;钨纳米粉;粒度;熔融盐;

相似文献

外文文献
中文文献
专利

1. Preparation of Tungsten Carbide Nanopowders by Self-propagating High-Temperature Synthesis [J] . I. P. Borovinskaya, T. I. Ignateva, V. I. Vershinnikov, Inorganic materials . 2004,第10期

机译：自蔓延高温合成法制备碳化钨纳米粉
2. Synthesis of tungsten monocarbide by self-propagating high-temperature synthesis in the presence of an activative additive [J] . Zhang J., Maeng DY., Won CW., Journal of Materials Science . 2001,第13期

机译：在活性添加剂存在下通过自蔓延高温合成法合成一碳化钨
3. Synthesis of tungsten monocarbide by self-propagating high-temperature synthesis in the presence of an activative additive [J] . J. Zhang, J. H. Lee, D. Y. Maeng, Journal of Materials Science . 2001,第13期

机译：在活性添加剂存在下通过自蔓延高温合成法合成一碳化钨
4. Self-propagating high-temperature synthesis and luminescent properties of ytterbium doped rare earth (Y, Sc, Lu) oxides nanopowders [C] . D.A. Permin, A.V. Novikova, S.S. Balabanov International Youth Scientific Forum with International Participation New Materials . 2018

机译：镱掺杂稀土（Y，SC，Lu）氧化物纳米粉的自蔓延高温合成和发光性能
5. A theoretical and experimental study of self-propagating high-temperature synthesis of titanium carbide. [D] . Huque, Ziaul. 1991

机译：自蔓延高温合成碳化钛的理论和实验研究。
6. Self-propagating high-temperature synthesis of (Ho1-xLax)2O3 nanopowders for magneto-optical ceramics [O] . S.S. Balabanov, S.V. Filofeev, M.G. Ivanov, 2019

机译：磁光陶瓷自蔓延高温合成（Ho1-xLax）2O3纳米粉
7. Self-propagating high-temperature synthesis of (Ho1-xLax)2O3 nanopowders for magneto-optical ceramics [O] . S.S. Balabanov, S.V. Filofeev, M.G. Ivanov, 2019

机译：（HO1-XLAX）2O3纳米粉末用于磁光陶瓷的高温合成

A study of tungsten nanopowder formation by self-propagating high-temperature synthesis

摘要

著录项

相似文献

相关主题

期刊订阅