Rapid preparation of YBa2Cu3O7-x with Tc ∼ 90 K using a domestic microwave oven

Masatsune Kato, Kenji Sakakibara, Yoji Koike

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26 Citations (Scopus)


High-Tc superconducting samples of YBa2Cu3O7-cursive Greek chi with Tc ∼ 90 K have been prepared in a short time of 25 min, using a domestic microwave oven operated at 2.45 GHz and 200 W, without any post-heat treatment. Post-heat treatment is not necessary due to improvement of the sample environment during the microwave process. That is, a pellet of mixed powders of raw materials is surrounded by mixed powders of raw matetials and subsequenty wrapped in glass wool, in order to suppress rapid dissipation of heat from the surface of the pellet. This leads to successful preparation of homogeneous and oxygenated samples of YBa2Cu3O7-cursive Greek chi.

Original languageEnglish
Pages (from-to)L1291-L1293
JournalJapanese Journal of Applied Physics, Part 2: Letters
Issue number10 PART A
Publication statusPublished - 1997 Oct 1


  • Domestic microwave oven
  • Electrical resistivity
  • High-T superconductor
  • Magnetic susceptibility
  • Sample preparation
  • YBaCuO

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)


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