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Effect of thermal expansion of the glass binder on the electrical conductivity of resistive thick films based on the hexaborides BaB6-LaB6

  • Investigation Methods and Properties of Powder Materials
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Powder Metallurgy and Metal Ceramics Aims and scope

Abstract

Dependence of the electrical conductivity of resistive thick films based on hexaborides of the BaB6-LaB6 system on the ratio of thermal expansion coefficients of the functional phase and glass binder was investigated. A maximum in the electrical resistivity of the films and minimum in the temperature coefficient is found when the thermal expansion coefficients are equal. A physical explanation of these results is given in terms of decreasing activation energy in dielectric layers with increasing mismatch of the thermal expansion coefficients.

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Authors
  1. B. M. Rud'
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  2. I. M. Vinitskii
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  3. I. Yu. Panarina
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  4. E. Ya. Tel'nikov
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Additional information

Institute of Materials Science Problems, Ukrainian Academy of Sciences, Kiev. Translated from Poroshkovaya Metallurgiya, No. 11–12, pp. 62–66, November–December, 1994.

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Rud', B.M., Vinitskii, I.M., Panarina, I.Y. et al. Effect of thermal expansion of the glass binder on the electrical conductivity of resistive thick films based on the hexaborides BaB6-LaB6 . Powder Metall Met Ceram 33, 616–619 (1995). https://doi.org/10.1007/BF00559672

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  • DOI: https://doi.org/10.1007/BF00559672

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