Experimental and finite element study of the thermal conductivity of alpha-SiAlON ceramics

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Atıf İçin Kopyala

Kushan S. R., Uzun I., DOĞAN B., Mandal H.

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, cilt.90, sa.12, ss.3902-3907, 2007 (SCI-Expanded)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 90 Sayı: 12
• Basım Tarihi: 2007
• Doi Numarası: 10.1111/j.1551-2916.2007.01993.x
• Dergi Adı: JOURNAL OF THE AMERICAN CERAMIC SOCIETY
• Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Sayfa Sayıları: ss.3902-3907
• Gazi Üniversitesi Adresli: Hayır

Özet

The thermal conductivity of monolithic Y-Sm/alpha-SiAlON was evaluated using experimental data and finite element analysis. The thermal diffusivities of Y, Y-Dy, and Y-Ce/alpha-SiAlON ceramics were also investigated experimentally for comparison. The maximum achievable thermal conductivity of Y-Sm/alpha-SiAlON has been calculated by the linear extrapolation of the temperature-based experimental inverse diffusivity data and was used for the numerical calculations. Two-dimensional model microstructures were built on the base of real microstructure images and applied for calculations. Experimental data and numerical calculations were compared for Y-Sm/alpha-SiAlON, and it was revealed that both results are in good agreement.