Thermal Conductivity of Yttria-Zirconia Single Crystals, Determined with Spatially Resolved Infrared Thermography
The thermal diffusivity of yttria–zirconia (Y2O3–ZrO2) single crystals, with YO1.5 concentrations in the range of 0–60 mol%, has been determined using a new method that is based on spatially resolved (20 μm) infrared mapping of a modulated thermal field. The decreasing trend of the thermal conductiv...
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| Veröffentlicht in: | Journal of the American Ceramic Society 2000-08, Vol.83 (8), p.1993-1998 |
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| Format: | Artikel |
| Sprache: | eng |
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| container_end_page | 1998 |
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| container_issue | 8 |
| container_start_page | 1993 |
| container_title | Journal of the American Ceramic Society |
| container_volume | 83 |
| creator | Bisson, Jean-François Fournier, Danièle Poulain, Martine Lavigne, Odile Mévrel, Rémy |
| description | The thermal diffusivity of yttria–zirconia (Y2O3–ZrO2) single crystals, with YO1.5 concentrations in the range of 0–60 mol%, has been determined using a new method that is based on spatially resolved (20 μm) infrared mapping of a modulated thermal field. The decreasing trend of the thermal conductivity (K), as a function of the YO1.5 content (up to 20 mol%), can be described using a model based on a Debye approach that has been modified by introducing a cut‐off length for the phonon mean free path. At higher concentrations, K increases, as a result of a possible ordering of the point defects. |
| doi_str_mv | 10.1111/j.1151-2916.2000.tb01502.x |
| format | Article |
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The decreasing trend of the thermal conductivity (K), as a function of the YO1.5 content (up to 20 mol%), can be described using a model based on a Debye approach that has been modified by introducing a cut‐off length for the phonon mean free path. 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The decreasing trend of the thermal conductivity (K), as a function of the YO1.5 content (up to 20 mol%), can be described using a model based on a Debye approach that has been modified by introducing a cut‐off length for the phonon mean free path. 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| subjects | single crystals thermal conductivity zirconia: yttria stabilized |
| title | Thermal Conductivity of Yttria-Zirconia Single Crystals, Determined with Spatially Resolved Infrared Thermography |
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