图书馆订阅: Guest
高温材料处理:国际期刊

每年出版 4 

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

Indexed in

HIGH-TEMPERATURE COMBUSTION SYNTHESIS OF TANTALUM BORIDE/NITRIDE COMPOSITES

卷 16, 册 1, 2012, pp. 45-55
DOI: 10.1615/HighTempMatProc.2013006468
Get accessGet access

摘要

Tantalum boride/nitride (TaB-TaN) composites were prepared from Ta-B and Ta-BN (boron nitride) powder compacts through self-propagating high-temperature synthesis (SHS) under 0.45−3.20 MPa nitrogen. Starting stoichiometries of the samples include Ta:B (or BN) = 2:1 and 4:1. The increase of nitrogen pressure enhanced the nitridation of tantalum, leading to an increase in combustion temperature and reaction front velocity. Combustion temperature was also increased by increasing Ta in the reactant compact for a higher TaN content formed in the composite. For the sample of Ta:BN = 4:1, BN not only provides boron for the formation of TaB, but acts as a solid source of nitrogen to facilitate the nitridation of Ta. As a result, the intermediate nitride phase Ta2N present in the TaB-TaN composite was substantially reduced by using BN as the precursor, when compared to the product synthesized from the sample adopting elemental boron at Ta:B = 4:1. Due to the low combustion temperature, however, the reaction between Ta and BN was incomplete for the sample of Ta:BN = 2:1, resulting in a deficiency of boron and a large amount of Ta2N. Instead, when a composite with equivalent amounts of TaB and TaN was intended, better formation of TaB and TaN was achieved by the boron-containing sample of Ta:B = 2:1 under nitrogen.

对本文的引用
  1. Koltunowicz T. N., Zukowski P., Boiko O., Czarnacka K., Bondariev V., Saad A., Larkin A. V., Fedotov A. K., Capacitive properties of nanocomposite (FeCoZr) x (PZT)(100−x) produced by sputtering with the use of argon and oxygen ions beam, Journal of Materials Science: Materials in Electronics, 27, 2, 2016. Crossref

  2. Xu R.-R., Su Q., High Temperature Synthesis, in Modern Inorganic Synthetic Chemistry, 2017. Crossref

Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集 订购及政策 Begell House 联系我们 Language English 中文 Русский Português German French Spain