Photoacoustic Spectra on the Bi or Pr Doped ZnO Varistors

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Author(s)

Abstract

PA spectra with several sintering temperatures on the Bi doped and Pr doped ZnO varistors were measured using the gas microphone method and compared, where the grain structure was observed by the laser microscope. The PA signals in the long wavelength excitaion light decreased as the sintering temperature increased, although the PA signals were large at the short wavelength region on the all samples. The PA signal intensity seems not to depend on the surface area caused by the grain structure change, but it might also relate to the quality of the sintered samples such as the deep levels or defects in the grain. The Pr doped samples need the higher sintering temperature to get the high quality samples than the Bi doped samples.

Journal

  • Journal of the Japan Society of Powder and Powder Metallurgy

    Journal of the Japan Society of Powder and Powder Metallurgy 49(5), 355-359, 2002-05-15

    Japan Society of Powder and Powder Metallurgy

References:  12

Codes

  • NII Article ID (NAID)
    10008559477
  • NII NACSIS-CAT ID (NCID)
    AN00222724
  • Text Lang
    ENG
  • Article Type
    ART
  • ISSN
    05328799
  • NDL Article ID
    6169257
  • NDL Source Classification
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL Call No.
    Z17-274
  • Data Source
    CJP  NDL  J-STAGE 
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