• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Engineering and Performance >Synthesis, Processing and Properties of Calcium- and Nickel-Doped Yttrium Chromates(III) Y0.8Ca0.2Cr1-x Ni (x) O-3 (x=0-0.3) and Studies on Their Potential Application as Coatings for SOFC Interconnects
【24h】

Synthesis, Processing and Properties of Calcium- and Nickel-Doped Yttrium Chromates(III) Y0.8Ca0.2Cr1-x Ni (x) O-3 (x=0-0.3) and Studies on Their Potential Application as Coatings for SOFC Interconnects

机译：钙和镍掺杂的钇铬酸盐（III）Y0.8CA0.2CR1-X Ni（X）O-3（x = 0-0.3）的合成，加工和性质以及研究其作为SOFC互连涂层的潜在应用的研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In the present study, a calcium- and nickel-doped yttrium chromates (YCCN)-based, conductive-protective layers for metallic interconnects used in the intermediate-temperature solid oxide fuel cells (IT-SOFCs) were investigated. Synthesis of Y0.8Ca0.2Cr1-x Ni (x) O-3 (x = 0; 0.15 and 0.3) powders was performed using a wet chemistry method with two different complexing agents: ethylenediaminetetraacetic acid and glycine. Based on the result of thermal analysis of obtained precursors, optimal conditions of the calcination process were determined. Powders were then milled, compacted and sintered at different temperatures using free sintering method, into series of dense, polycrystalline sinters. The use of glycine precursor allowed obtaining a single-phase material in all cases. Based on the electrical and sintering properties, the Y0.8Ca0.2Cr0.85Ni0.15O3 material was selected for further studies. It was deposited using cost-effective screen-printing method on the Crofer 22APU ferritic stainless steel. To investigate properties and suitability of the resulting layer/steel system for IT-SOFCs applications, the high-temperature, dual-atmosphere studies were carried out for the first time for ceramic/metallic system, in conditions as close as possible to actual working conditions of the fuel cell. The layer exhibited high stability and good protective properties. The area-specific resistance of the studied ceramic layer/metallic substrate composite was determined, with the obtained value of 0.0366 Omega cm(2) being within the arbitrary limit set for these materials (0.1 Omega cm(2)). The results show that the investigated materials are suitable for the projected application.
机译：在本研究中，研究了用于中间温度固体氧化物燃料电池（IT-SOFC）中使用的金属互连的钙和掺杂的氧化钇铬酸盐（YCCN）的导电保护层。使用具有两种不同的络合剂的湿化学方法进行Y0.8Ca0.2CR1-Ni（X）O-3（X）O-3（x = 0; 0.15和0.3）粉末的合成。基于所得前体的热分析的结果，确定煅烧过程的最佳条件。然后使用游离烧结法在不同温度下碾碎，压实和烧结粉末，进入一系列致密的多晶索特。在所有情况下，使用甘氨酸前体允许在所有情况下获得单相材料。基于电气和烧结性能，选择Y0.8CA0.2CR0.85NI0.15O3材料进行进一步研究。它在Crofer 22apu铁素体不锈钢上使用经济高效的丝网印刷方法沉积。为了研究所得层/钢系统的特性和适用性，对于IT-SOFC应用，高温，双大气研究首次进行陶瓷/金属系统，在尽可能接近实际工作条件的条件下进行燃料电池。该层表现出高稳定性和良好的保护性。测定所研究的陶瓷层/金属基板复合材料的面积特异性，得到的0.0366ωcm（2）的值在这些材料（0.1ωcm（2））内的任意限制内。结果表明，调查的材料适用于预计应用。

著录项

相似文献

  • 外文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号