Ionic Conductivity Method for measuring vaporized chromium species from solid oxide fuel cell interconnects

被引：18
作者：
Casteel, Micah [1 ]
Lewis, Dan [1 ]
Willson, Patrick [1 ]
Alinger, Matthew [2 ]
机构：
[1] Rensselaer Polytech Inst, Troy, NY 12180 USA
[2] GE Co, Global Res, Schenectady, NY 12301 USA
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2012年 / 37卷 / 08期
关键词：
Chromium vaporization; Novel measurement; Ionic Conductivity Method; Transpiration method; Chromia; THERMODYNAMICS; VOLATILITY; ALLOYS;
D O I：
10.1016/j.ijhydene.2012.01.016
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A novel method of measuring vaporized chromium species from metallics specimens, in real time, was developed to enable more rapid alloy and coating screening for use as solid oxide fuel cell (SOFC) interconnects. This method, the Ionic Conductivity Method (ICM), simulates an SOFC environment and captures vaporized species into a de-ionized water (DI) solution where total amount of vaporized chromium can be measured. The development, design, and final implementation of this method is presented with calculations of expected theoretical accuracy and comparison with alternative methods. This method will allow for further investigation into vaporization kinetics, more rapid coating research, and facilitate inquiry into secondary vaporized species. Finally, ICM was used to measure the vaporization rates of bulk chromia, CroferAPU22, E-Brite, ZMG-232, and 441 Stainless Steel for comparison with current methods. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：6818 / 6829
页数：12
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