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Ceramic with a Low Tcle for Deposition of Protective Coatings Made of Nb2O5

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Abstract

The thermal expansion of mullite-cordierite, mullite, and quartz ceramics used in production of materials with a protective Nb2O5 coating is investigated. It is demonstrated that fused quartz glass and quartz ceramics not containing the cristobalite phase are the closest to Nb2O5 in their thermal expansion. Variable-composition alloys (Nb2O5)x – (SiO2)1–x have intermediate TCLEs and can serve to compensate stresses caused by the discrepancy between the coating and the quartz ceramic substrate.

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Authors and Affiliations

  1. I. N. Frantsevich Institute of Material Problems of the National Academy of Sciences of Ukraine (IPM NAS), Ukraine

    A. A. Frolov, V. N. Pavlikov & O. N. Grigor'ev

Authors
  1. A. A. Frolov
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  2. V. N. Pavlikov
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  3. O. N. Grigor'ev
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Frolov, A.A., Pavlikov, V.N. & Grigor'ev, O.N. Ceramic with a Low Tcle for Deposition of Protective Coatings Made of Nb2O5 . Glass and Ceramics 61, 192–194 (2004). https://doi.org/10.1023/B:GLAC.0000043091.00781.da

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  • DOI: https://doi.org/10.1023/B:GLAC.0000043091.00781.da

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