炎溶射で得られたアルミナ球状粒子について

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タイトル別名
  • Properties of Spherical Alumina Particles Obtained by Oxy-propane Gas Flame Spraying
  • エン ヨウシャ デ エラレタ アルミナ キュウジョウ リュウシ ニ ツイテ

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説明

Spherical Alumina particles obtained by oxy-propane gas flame spraying were investigated by means of scanning electron microscope and X-ray powder diffraction. The ratio of spherical and nomspherical particle was influenced by powder concentration in the flame, carrier gas and activity of the raw alumina powders.<br>The surface conditions of alumina spheres were divided into two categories; dendritic and granular form.<br>The crystal form of sphere was composed of α-and δ-alumina. Formation of δ-alumina progressively decreased with the sphere diameter. Allotropic transformation of δ-to α-alumina was completed at 1300°C for 3h.

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  • 窯業協會誌

    窯業協會誌 90 (1039), 105-110, 1982

    公益社団法人 日本セラミックス協会

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