Ceramic thin film thermocouples for SiC-based ceramic matrix composites

被引：60
作者：
Wrbanek, John D. [1 ]
Fralick, Gustave C. [1 ]
Zhu, Dongming [1 ]
机构：
[1] NASA, Glenn Res Ctr, Cleveland, OH 44135 USA
来源：
THIN SOLID FILMS | 2012年 / 520卷 / 17期
关键词：
Thermocouples; Thin films; Indium oxides; Zinc oxides; Ceramic matrix composites; High temperature environments; RESISTIVITY; COATINGS; MULLITE;
D O I：
10.1016/j.tsf.2012.04.034
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Conductive ceramic thin film thermocouples were investigated for application to silicon carbide fiber reinforced silicon carbide ceramic matrix composite (SiC/SiC CMC) components. High temperature conductive oxides based on indium and zinc oxides were selected for testing to high temperatures in air. Sample oxide films were first sputtered-deposited on alumina substrates then on SiC/SiC CMC sample disks. Operational issues such as cold junction compensation to a 0 degrees C reference, resistivity and thermopower variations are discussed. Results show that zinc oxides have an extremely high resistance and thus increased complexity for use as a thermocouple, but thermocouples using indium oxides can achieve a strong, nearly linear response to high temperatures. Published by Elsevier B.V.
引用
收藏
页码：5801 / 5806
页数：6
相关论文
共 29 条
[21]   Mechanical stability of DLC films on metallic substrates - Part II - Interfacial toughness, debonding and blistering [J].
Peng, XL ;
Clyne, TW .
THIN SOLID FILMS, 1998, 312 (1-2) :219-227
[22]  
Samsonov G.V., 1967, HIGH TEMPERATURE NON
[23]  
Schenk B., 2002, Ceramic Gas Turbine Design and Test Experience: Progress in Ceramic Gas Turbine Development, P77
[24]   MEASUREMENT OF SHEET RESISTIVITIES WITH THE 4-POINT PROBE [J].
SMITS, FM .
BELL SYSTEM TECHNICAL JOURNAL, 1958, 37 (03) :711-718
[25]  
Wrbanek J.D., 2006, TM2006214466 NASA
[26]  
Wrbanek J.D., 2010, TM2010216216 NASA
[27]  
Wrbanek J. D., 2006, TM2006214395 NASA
[28]  
WRBANEK JD, 2004, TM2004213211 NASA
[29]  
Zhu D., 2003, TM2003212544 NASA
123