Journal of Aerospace System Engineering (항공우주시스템공학회지)

The Society for Aerospace System Engineering (항공우주시스템공학회)
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Fabrication and Resistance Characteristics of Smart Paint for Temperature Sensor

온도 센서를 위한 스마트 페인트 제작 및 저항 특성

  • Ahn, Ju-Hun (Department of Aerospace Engineering, Chosun University) ;
  • Lee, Chang-Yull (Department of Aerospace Engineering, Chosun University)
  • 안주훈 (조선대학교 항공우주공학과) ;
  • 이창열 (조선대학교 항공우주공학과)
  • Received : 2018.11.27
  • Accepted : 2019.04.14
  • Published : 2019.04.30
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Abstract

Satellite and aircraft components are greatly affected by the possibility for missions and safety due to temperature effects. In the field of fuel cells, research is actively carried out for UAV. For the efficiency and stability of the fuel cells, the temperature for operations must be confirmed. In this paper, a smart paint was fabricated with $BaTiO_3$ and $SrTiO_3$ ceramics in order to take advantage of the rapid characteristics of the PTC thermistor, which is the resistance changes abruptly above the Curie point. A coating agent was prepared to prevent the paint from peeling off the samples and the coated models were checked for resistance changes. Moreover, the resistance change of the $BaTiO_3$ and $SrTiO_3$ with temperature conditions was measured before and after coating.

위성 및 항공기 부속품 등은 온도 영향에 따라 미션의 가능성 및 안전에 큰 영향을 받게 된다. 또한 무인기를 위해 연구가 활발히 진행되고 있는 연료전지 분야에서도 효율성 및 안정성을 위해 온도는 필수적으로 확인되어야 한다. 본 논문은 큐리 온도 이상에서 저항이 급격히 변화하는 PTC 서미스터의 특성을 이용하기 위해 $BaTiO_3$와 세라믹 성분을 변화시킨 $SrTiO_3$를 이용하여 스마트 페인트를 제작하였으며, 박리를 방지하기 위하여 코팅제를 제작해 코팅 후 저항 변화를 확인하였다. 또한 코팅 전후 $BaTiO_3$ 와 $SrTiO_3$의 온도 변화에 따른 저항 변화를 측정하였다.

Keywords

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Fig. 1 Fabrication Procedure of Smart Paints

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Fig. 4 Schematic Diagram of Experimental Setting

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Fig. 5 Experiment Setting of Substrate

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Fig. 2 Samples of Production [(a) : Uncoated BaTiO3, (b) : Uncoated SrTiO3, (c) : Coated BaTiO3,(d) : Coated SrTiO3]

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Fig. 3 SEM Images of Paints [(a) : Uncoated BaTiO3, (b) : Uncoated SrTiO3, (c) : Coated BaTiO3,(d) : Coated SrTiO3]

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Fig. 6 Temperature and Resistance Comparison Graphs by BaTiO3

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Fig. 7 Temperature and Resistance Comparison Graphs by SrTiO3

Table 1 Measurement of Basic Resistance

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