Hostname: page-component-745bb68f8f-b95js Total loading time: 0 Render date: 2025-01-12T23:49:03.141Z Has data issue: false hasContentIssue false
  • English
  • Français

Thermal conductivity of AlN ceramic with a very low amount of grain boundary phase at 4 to 1000 K

Published online by Cambridge University Press:  31 January 2011

Koji Watari ,
Hiromi Nakano ,
Kazuyori Urabe ,
Kozo Ishizaki ,
Shixun Cao  and
Katsunori Mori
Koji Watari
Affiliation:
National Institute of Advanced Industrial Science and Technology, Ceramics Research Institute, Moriyama-ku, Nagoya, 463–8560, Japan
Hiromi Nakano
Affiliation:
Electron Microscope Laboratory, Ryukoku University, Seta Otsu, 520–2194, Japan
Kazuyori Urabe
Affiliation:
Department of Materials Chemistry, Ryukoku University, Seta Otsu, 520–2194, Japan
Kozo Ishizaki
Affiliation:
School of Mechanical Engineering, Nagaoka University of Technology, Nagaoka, 940–2188, Japan
Shixun Cao
Affiliation:
Faculty of Engineering, Toyama University, 930–8555, Japan
Katsunori Mori
Affiliation:
Faculty of Engineering, Toyama University, 930–8555, Japan
Get access

Abstract

An AlN ceramic fired at 2173 K for 100 h under a reduced N2 atmosphere with carbon possessed a room-temperature conductivity of 272 Wm−1K−1, slightly lower than the value for high-purity, single-crystal AlN. However, the thermal conductivity of the ceramic at temperatures below 100 K was much lower than that of single crystal. This is mainly due to phonon scattering by grain junctions that possess an amorphous film with a thickness of under 1 nm. At 500 to 1000 K, no significant difference in the conductivity was observed between the ceramic and the single crystal.

Type
Articles
Information
Journal of Materials Research , Volume 17 , Issue 11 , November 2002 , pp. 2940 - 2944
Copyright
Copyright © Materials Research Society 2002

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.Slack, G.A., Tanzilli, R.A., Pohl, R.O. and Vandersande, R.O., J. Phys. Chem. Solids 48, 641 (1987).Google Scholar
2.Komeya, K., Bull. Ceram. Soc. Jpn. 26, 725 (1991).Google Scholar
3.Watari, K., J. Ceram. Soc. Jpn. 109, S7 (2001).CrossRefGoogle Scholar
4.Watari, K., Tsugoshi, T., Nagaoka, T., Ishizaki, K., Cao, S., and Mori, K., in Proceeding of the 18th International Japan-Korea Seminar on Ceramics, Committee of the 18th International Japan-Korea Seminar on Ceramics, edited by Kato, A., Tateyama, H., and Hasuyama, H. (TIC Co., Kyoto, Japan, 2001), pp. 98–101.Google Scholar
5.Komeya, K., Inoue, H., and Tsuge, A., J. Ceram. Soc. Jpn. 89, 58 (1981).Google Scholar
6.Shinozaki, K. and Tsuge, A., Bull. Ceram. Soc. Jpn. 21, 1130 (1986).Google Scholar
7.Virkar, A.V., Jackson, T.B., and Cutler, R.A., J. Am. Ceram. Soc. 72, 2031 (1989).CrossRefGoogle Scholar
8.Watari, K., Hwang, H.J., Toriyama, M., and Kanzaki, S., J. Mater. Res. 14, 1409 (1999).CrossRefGoogle Scholar
9.Kuramoto, N., Taniguchi, H., Numata, Y., and Aso, I., J. Ceram. Soc. Jpn. 93, 517 (1985).Google Scholar
10.Ueno, F. and Horiguchi, A., in Proceedings of the 1st European Ceramics Society Conference, edited by deWith, G., Terpstra, R.A., and Metselaar, R. (Elsevier Applied Science, London, New York, 1989), pp. 383–387.Google Scholar
11.Watari, K., Kawamoto, M., and Ishizaki, K., J. Mater. Sci. 26, 4727 (1991).CrossRefGoogle Scholar
12.Yagi, T., Shinozaki, K., Kato, M., Sawada, Y., and Mizutani, N., J. Ceram. Soc. Jpn. 98, 198 (1990).Google Scholar
13.Thomas, A. and Muller, G., J. Eur. Ceram. Soc. 8, 11 (1991).Google Scholar
14.Nakano, H., Watari, K., Hayashi, H., and Urabe, K., J. Am. Ceram. Soc. (in press).Google Scholar
15.Cao, S., Sakai, S., Nishimura, K., and Mori, K., Physica C 341–348, 751 (2000).Google Scholar
16.JANAF Thermochemical Tables, 2nd ed., edited by Stull, D.R. and Prophet, H. (National Standard Reference Data System, National Bureau of Standards, Washington, DC, 1970), p. 90.Google Scholar
17.Watari, K., Ishizaki, K., and Fujikawa, T., J. Mater. Sci. 27, 2627 (1992).CrossRefGoogle Scholar
18.Hagege, S., Tanaka, S., and Ishida, Y., J. Jpn. Inst. Metals 52, 1192 (1988).Google Scholar
19.Srivastava, G.P., The Physics of Phonons (Adam Hilger, Bristol, U.K., 1990).Google Scholar
20.Thermophysical Properties of Matter, The TPRC Data Series, Vol. 2, edited by Touloukian, Y.S., Powell, R.W., Ho, C.Y., and Klemens, P.G. (IFI/Plenum, New York-Washington, 1970), pp. 3a–11a.Google Scholar
21.Slack, G.A. and Auster, S.B., J. Appl. Phys. 42, 4713 (1971).Google Scholar
22.Tajika, M., Matsubara, H., and Rafaniello, W., J. Am. Ceram. Soc. 82, 1573 (1999).Google Scholar
23.Watari, K., Ishizaki, K., and Tsuchiya, F., J. Mater. Sci. 28, 3709 (1993).Google Scholar