Characteristics of P-Type MgCr<sub><font size="-1">2</font></sub>O<sub><font size="-1">4</font></sub>-TiO<sub><font size="-1">2</font></sub> : WO<sub><font size="-1">3</font></sub> Ceramics for Gas Sensing Applications

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  • WO<sub><font size="-1">3</font></sub>を添加したMgCr<sub><font size="-1">2</font></sub>O<sub><font size="-1">4</font></sub>-TiO<sub><font size="-1">2</font></sub>系P型セラミックガス感応素子の特性
  • WO₃を添加したMgCr₂O₄-TiO₂系P型セラミックガス感応素子の特性
  • WO ₃ オ テンカ シタ MgCr ₂ O ₄-TiO ₂ ケイ Pガタ セラミックガス カンノウ ソシ ノ トクセイ
  • Characteristics of P-Type MgCr2O4-TiO2 : WO3 Ceramics for Gas Sensing Applications

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Abstract

This article describes characteristics of p-type MgCr2O4-TiO2 ceramics from the viewpoint of the application to gas sensing element. The metal-oxide semiconducting ceramics were made by sintering a mixture powder of MgO, Cr2O3, TiO2, and WO3 as an additive to increase the sensitivity for chemical species. Gas detection performance as well as the structural quality was examined and found to become the highest at around 75mol%MgCr2O4-25mol%TiO2 with 0.5 wt% WO3.

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