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高温材料处理:国际期刊

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ISSN 打印: 1093-3611

ISSN 在线: 1940-4360

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.4 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.1 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00005 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.07 SJR: 0.198 SNIP: 0.48 CiteScore™:: 1.1 H-Index: 20

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THERMITE-BASED COMBUSTION SYNTHESIS OF NIOBIUM SILICIDES/Al2O3 COMPOSITES

卷 16, 册 1, 2012, pp. 57-69
DOI: 10.1615/HighTempMatProc.2013007013
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摘要

In situ formation of NbSi2- and Nb5Si3-Al2O3 composites with a wide composition range was achieved by self-propagating high-temperature synthesis (SHS) involving thermite reactions. Two thermite mixtures, Al-Nb2O5 and Al-Nb2O5-SiO2, were incorporated into the Nb-Si combustion system. As the extent of aluminothermic reduction involved in the SHS process increases for a higher content of Al2O3, the combustion temperature and reaction front velocity are enhanced due to the increase of combustion exothermicity. Although the SiO2-added reaction is less energetic, the Al-Nb2O5-SiO2 thermite mixture contributes to the final product with a higher content of Al2O3, especially for the NbSi2-Al2O3 composite. Based upon the X-ray diffraction analysis, the NbSi2-Al2O3 composite was produced with a small amount of Nb2Al. On the formation of the Nb5Si3-Al2O3 composites, Nb5Si3 of the α form was yielded as the dominant silicide when stoichiometric samples were adopted, while β-phase Nb5Si3 was favored for the green samples containing 10% excess Si.

对本文的引用
  1. Yeh C.L., Huang Y.S., Effects of excess boron on combustion synthesis of alumina–tantalum boride composites, Ceramics International, 40, 2, 2014. Crossref

  2. Yeh C.L., Yang W.J., Effects of co-reduction of Cr2O3 and V2O5 on combustion synthesis of (Cr1−xVx)2AlC/Al2O3 solid solution composites, Journal of Alloys and Compounds, 608, 2014. Crossref

  3. Urakaev Farit Kh., Akmalaev Kenzhebek A., Orynbekov Eljan S., Balgysheva Beykut D., Zharlykasimova Dinar N., The Use of Combustion Reactions for Processing Mineral Raw Materials: Metallothermy and Self-propagating High-temperature Synthesis (Review), Metallurgical and Materials Transactions B, 47, 1, 2016. Crossref

  4. Yakaboylu Gunes A., Sabolsky Katarzyna, Sabolsky Edward M., Phase stability, microstructure and high-temperature properties of NbSi2- and TaSi2-oxide conducting ceramic composites, Journal of Materials Science, 53, 14, 2018. Crossref

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