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Determination of the range of lattice distortion in AIN sintered body by higher order laue zone pattern

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Abstract

To analyse the magnitude and range of lattice distortion which is responsible for the low thermal conductivity in aluminium nitride (AIN) crystal grains, the higher order laue zone (HOLZ) pattern of transmission electron microscopy was used. The HOLZ patterns obtained from various positions in the AIN crystal grain show that the AIN crystal lattice is distorted in the vicinity of the grain-boundary phase, and the magnitude of lattice distortion becomes large as it approaches the grain-boundary phase. Also, the range of distortion extends to approximately 300 nm from the grain-boundary phase.

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Authors and Affiliations

  1. Itami Research Laboratories, Sumitomo Electric Industries, Ltd., Japan

    S. Nakahata, T. Matsuura, K. Sogabe & A. Yamakawa

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  1. S. Nakahata
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  2. T. Matsuura
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  3. K. Sogabe
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  4. A. Yamakawa
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Nakahata, S., Matsuura, T., Sogabe, K. et al. Determination of the range of lattice distortion in AIN sintered body by higher order laue zone pattern. J Mater Sci 31, 2693–2696 (1996). https://doi.org/10.1007/BF00687302

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  • DOI: https://doi.org/10.1007/BF00687302

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