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C/SiC复合材料表面高温瞬态温度传感器的研究
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  • 英文篇名:Study on high temperature transient temperature sensor on C/SiC composite surface
  • 作者:崔云先 ; 杨琮 ; 薛生俊 ; 殷俊伟 ; 杜鹏
  • 英文作者:Cui Yunxian;Yang Cong;Xue Shengjun;Yin Junwei;Du Peng;College of Mechanical Engineering,Dalian Jiaotong University;
  • 关键词:瞬态温度 ; 金属过渡层 ; 薄膜热电偶 ; 动态性能
  • 英文关键词:transient temperature;;metal transition layer;;thin film thermocouple;;dynamic performance
  • 中文刊名:YQXB
  • 英文刊名:Chinese Journal of Scientific Instrument
  • 机构:大连交通大学机械工程学院;
  • 出版日期:2019-03-15
  • 出版单位:仪器仪表学报
  • 年:2019
  • 期:v.40
  • 基金:国家自然科学基金(51575074)项目资助
  • 语种:中文;
  • 页:YQXB201903016
  • 页数:9
  • CN:03
  • ISSN:11-2179/TH
  • 分类号:166-174
摘要
针对C/SiC复合材料制造的航空发动机热端部件瞬时表面温度监测困难的问题,研究了一种C/SiC复合材料瞬时表面温度测量方法。采用磁控溅射法结合电镀工艺在C/SiC复合材料表面沉积了Ni-Cr-ZrO_2复合过渡层,采用磁控溅射法在Ni-Cr-ZrO_2复合过渡层上依次制备了SiO_2绝缘膜、NiCr/NiSi薄膜热电偶和SiO_2保护膜。对不同厚度SiO_2绝缘膜的绝缘性能进行研究,结果表明3μm厚的SiO_2薄膜绝缘电阻值可达1.64×10~9Ω。对传感器静态性能的实验研究结果表明,在50~600℃,塞贝克系数为42.1μV/℃,非线性误差1.52%。用理论计算与实验结合的方式对传感器的动态性能进行了研究,结果表明,传感器的动态响应时间在微秒级,可实现瞬态温度测试。对传感器进行测温实验,结果表明传感器能满足室温~600℃范围内瞬态温度检测的需求。
        Theinstantaneous surface temperaturemonitoringis always challenging for the aero-engine hot components composed of C/SiC composite materials.An measurement method of instantaneous surface temperature monitoring is studied for the aero-engine hot components composed of C/SiC composite materials. The Ni-Cr-ZrO_2 composite transition layer isdeposited on the surface of C/SiC composite by magnetron sputtering and electroplating.Insulating film SiO_2, NiCr/NiSithin film thermocouple and SiO_2 protective filmareprepared sequentially on the Ni-Cr-ZrO_2composite metal transition layer on the surface of C/SiC composite prepared by magnetron sputtering.The insulation properties of SiO_2 insulating films with different thicknesses areinvestigated. The results indicatethat the insulation resistance of SiO_2 films with a thickness of 3 μm is about 1.64×10~9 Ω. The experimental results of the static performance of the sensor show that the Seebeck coefficient is 42.1 μV/℃ and the nonlinear error is 1.52% in the range of 50~600℃. The dynamic performance of the sensor is studied by the combination of theoretical calculation and experiment. The results show that the dynamic response time of the sensor is in the microsecond range, which can realize the transient temperature test. The temperature measurement experiment shows that the sensor can meet the requirements of transient temperature detection ranged from room temperature to 600℃.
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