• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Thermal Spray Conference and Exposition >Influence of Spray Parameters and Characteristics of Solutions on Microstructure and Phase Composition of Solution Precursor Atmospheric Plasma Sprayed (SPPS) Mn-Co Spinel Coating
【24h】

Influence of Spray Parameters and Characteristics of Solutions on Microstructure and Phase Composition of Solution Precursor Atmospheric Plasma Sprayed (SPPS) Mn-Co Spinel Coating

机译：喷雾参数及溶液对溶液前体大气等离子体喷涂（SPPS）Mn-Co尖晶石涂层的微观结构和相组成的影响

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Manufacturing of MnCo_2O_4 spinel coatings by solution precursor plasma spraying (SPPS) was studied in order to produce thin ceramic coating on a ferritic stainless steel interconnect for SOFC's. The main purpose to use MnCo_2O_4 coating in SOFC devices is to prevent the migration of harmful CrO_3 and Cr_2(OH)_2 compounds to the triple phase barriers (TPB) of the cathode. In this study Mn(NO_3)_2·4H_2O and Co(NO_3)_2·6H_2O were diluted to deionized water and mixture of deionized water and ethanol at 3 M mixture rate. The solutions were sprayed on 0.5 mm thick Crofer 22 APU substrate by Sulzer Metco F4-MB plasma gun with a modified solution feeder. Microstructural characterizations for the as-sprayed coatings were done by using a field-emission scanning electron microscopy (FESEM) with SE-mode. Elemental analyses were done with energy dispersive spectroscopy (EDS) and an X-ray diffraction (XRD) was used for crystallographic studies. The coating with full equivalence of the crystallographic structure of MnCo_2O_4 spinel was sprayed using argon-helium plasma and water based solution. Plasma gas with hydrogen as a secondary or ternary gas and ethanol based solutions caused the formation of the mixed phases of CoO and MnCo_2O_4. Although the microstructures of sprayed coatings were still quite porous, the influence of relevant gun and solution parameters were found in order to improve coating denseness in further studies.
机译：研究了MNCO_2O_4尖晶石涂层通过溶液前体等离子体喷涂（SPP），以在用于SOFC的铁素体不锈钢互连上产生薄的陶瓷涂层。在SOFC器件中使用MNCO_2O_4涂层的主要目的是防止有害CRO_3和CR_2（OH）化合物的迁移到阴极的三相屏障（TPB）。在本研究中，将Mn（NO_3）_2·4H_2O和CO（NO_3）_2·6H_2O以3M的混合物速率稀释至去离子水和去离子水和乙醇的混合物。通过苏尔寿MetCo F4-MB等离子体枪在0.5mm厚的克罗托22APU衬底上喷洒溶液，具有改性溶液进料器。通过使用具有SE形模式的场发射扫描电子显微镜（FESEM）来完成喷涂涂层的微观结构特征。用能量分散光谱（EDS）进行元素分析，并使用X射线衍射（XRD）进行晶体研究。使用氩氦等离子体和水基溶液喷涂具有晶体晶体结构的完整等同物的涂层。具有氢的等离子体气体作为二级或三元气体和基于乙醇的溶液导致形成CoO和MnCo_2O_4的混合相。尽管喷涂涂层的微观结构仍然是非常多孔的，但发现相关枪和溶液参数的影响是为了提高进一步研究的涂层致密性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 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