Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-11-29T07:47:02.890Z Has data issue: false hasContentIssue false
  • English
  • Français

A Variable-Emittance Radiator Based on a Metal-Insulator Transition of (La,Sr)MnO3

Published online by Cambridge University Press:  11 February 2011

Yuichi Shimakawa ,
Tsutomu Yoshitake ,
Yoshimi Kubo ,
Takahiko Machida ,
Kiminari Shinagawa ,
Akira Okamoto ,
Yasuyuki Nakamura ,
Atsushi Ochi ,
Sumitaka Tachikawa  and
Akira Ohnishi
Yuichi Shimakawa
Affiliation:
Fundamental Research Laboratories, NEC Corporation, Tsukuba 305–8501, Japan
Tsutomu Yoshitake
Affiliation:
Fundamental Research Laboratories, NEC Corporation, Tsukuba 305–8501, Japan
Yoshimi Kubo
Affiliation:
Fundamental Research Laboratories, NEC Corporation, Tsukuba 305–8501, Japan
Takahiko Machida
Affiliation:
Department of Physics, Toho University, Funabashi 274–8510, Japan
Kiminari Shinagawa
Affiliation:
Department of Physics, Toho University, Funabashi 274–8510, Japan
Akira Okamoto
Affiliation:
NEC TOSHIBA Space Systems, Ltd., Yokohama 224–8555, Japan
Yasuyuki Nakamura
Affiliation:
NEC TOSHIBA Space Systems, Ltd., Yokohama 224–8555, Japan
Atsushi Ochi
Affiliation:
Functional Materials Research Laboratories, NEC Corporation, Kawasaki 216–8555, Japan
Sumitaka Tachikawa
Affiliation:
Institute of Space and Astronautical Science, Sagamihara 229–8501, Japan
Akira Ohnishi
Affiliation:
Institute of Space and Astronautical Science, Sagamihara 229–8501, Japan
Get access

Abstract

Variable-emittance radiators based on the metal-insulator transition of (La,Sr)MnO3 have been developed. The emittance property of the material was evaluated from infrared reflectance spectra; that is, (La,Sr)MnO3 shows low emittance at low temperature but high emittance at high temperature. Moreover, the emittance property significantly changes at the metal-insulator transition temperature, where the material changes from a highly reflective (i.e., low emissivity) metal to a less reflective (i.e., high emissivity) insulator. The (La,Sr)MnO3 thin-films fitted on a spacecraft surface can, therefore, be used to automatically control the emmisive heat transfer from the spacecraft without the need for electrical power. The developed (La,Sr)MnO3 thin-film radiator also greatly reduces the weight and production cost of the thermal control devices.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 755: Symposium DD – Solid-State Chemistry of Inorganic Materials IV , 2002 , DD11.13
Copyright
Copyright © Materials Research Society 2003

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

Tachikawa, S., Ohnishi, A., Shimazaki, K., Okamoto, A., Nakamura, Y., Shimakawa, Y., Manako, T., Mori, T., and Ochi, A., 29th ICES, SAE Paper No. 1999–01–2090 (1999).Google Scholar
Tachikawa, S., Ohnishi, A., Shimazaki, K., Okamoto, A., Nakamura, Y., Shimakawa, Y., Kosaka, M., Mori, T., and Ochi, A., 30th ICES, SAE Paper No. 2000–01–2277 (2000).Google Scholar
Shimakawa, Y., Yoshitake, T., Kubo, Y., Machida, T., Shinagawa, K., Okamoto, A., Nakamura, Y., Ochi, A., Tachikawa, S., and Ohnishi, A., Appl. Phys. Lett. 80, 4864 (2002).Google Scholar
Zenner, C., Phys. Rev. 82, 403 (1951).Google Scholar
[5] Tokura, Y., Urushibara, A., Moritomo, Y., Arima, T., Asamitsu, A., Kido, G., and Furukawa, N., J. Phys. Soc. Jpn. 63, 3931 (1994).Google Scholar
[6] Asamitsu, A. and Tokura, Y., Phys. Rev. B 58, 47 (1998).Google Scholar
[7] Urushibara, A., Moritomo, Y., Arima, T., Asamitsu, A., Kido, G., and Tokura, Y., Phys. Rev. B 51, 14103 (1995).Google Scholar