Effect of Pore Size Distribution on Humidity Sensing Properties of MgO doped ZrO2–TiO2 Ceramic

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概要

• 論文の詳細を見る

• The MgO doped ZrO2–TiO2 composite is studied for its humidity sensing characteristics. Though dc electrical properties show very high sensitivity to humidity, it is not useful for practical applications because of the charging effect. The ac conductivity vs relative humidity characteristics of the pellet becomes linear with an increase in sintering temperature. The post treatment at high temperature and high humidity is found to accelerate initial ageing of the pellet and therefore, stabilizes the characteristics more quickly. A physical model has been proposed to correlate initial ageing, effect of sintering temperature and response time with pore size distribution. Pores below 300 Å radii are present in abundance near the ZrTiO4 phase formation temperature. These pores are responsible for higher sensitivity in low humidity region and linear characteristics.

• INSTITUTE OF PURE AND APPLIED PHYSICSの論文
• 2000-01-15

著者

• SHARMA G.

  Thin Film Laboratory, Department of Physics, Indian Institute of Technology

• Sharma G.

  Thin Film Laboratory, Department of Physics, Indian Institute of Technology, Hauz Khas, New Delhi-110 016, India

• Jain M.

  Thin Film Laboratory, Department of Physics, Indian Institute of Technology, Hauz Khas, New Delhi-110 016, India

• Bhatnagar M.

  Thin Film Laboratory, Department of Physics, Indian Institute of Technology, Hauz Khas, New Delhi-110 016, India

関連論文

• Structural Investigation of Gold Induced Crystallization in Hydrogenated Amorphous Silicon Thin Films
• Effect of Pore Size Distribution on Humidity Sensing Properties of MgO doped ZrO2–TiO2 Ceramic

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