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Superfine Particle Technology

  • Textbook
  • © 1992

Overview

Authors:
  1. Noboru Ichinose

    1. Waseda University School of Science and Engineering, Shinjuku, Tokyo, Japan

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  2. Yoshiharu Ozaki

    1. Seikei University, Kichijoji, Musashinoshi, Tokyo, Japan

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  3. Seiichirō Kashū

    1. Vacuum Metallurgical Co., Ltd., Tsukubashi, Ibaragi, Japan

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Table of contents (6 chapters)

  1. Front Matter

    Pages i-ix
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  2. Fundamentals of Superfine Particles

    • Noboru Ichinose, Yoshiharu Ozaki, Seiichirō KashÅ«
    Pages 1-19

  3. Physics of Superfine Particles

    • Noboru Ichinose, Yoshiharu Ozaki, Seiichirō KashÅ«
    Pages 21-38

  4. Chemistry of Superfine Particles

    • Noboru Ichinose, Yoshiharu Ozaki, Seiichirō KashÅ«
    Pages 39-78

  5. Physical Manufacturing Processes

    • Noboru Ichinose, Yoshiharu Ozaki, Seiichirō KashÅ«
    Pages 79-122

  6. Chemical Manufacturing Processes

    • Noboru Ichinose, Yoshiharu Ozaki, Seiichirō KashÅ«
    Pages 123-162

  7. Applications of Superfine Particles

    • Noboru Ichinose, Yoshiharu Ozaki, Seiichirō KashÅ«
    Pages 163-219

  8. Back Matter

    Pages 221-223
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Keywords

About this book

If a substance is repeatedly subdivided, the result is what are known as "microscopic particles". These particles are distinguished from the solid mass which they originally formed by the size of the surface area per unit weight. This simple difference holds true down to a certain lower size limit, and when this limit is exceeded, a new state of matter is reached, in which the behavior of the particles is quite different to that of the original solid. Particles in this state are termed "superfine particles", and are distinct from ordinary particles. The size of the superfine particles, that is to say the size limit below which particle behavior is completely different from the behavior of the original solid, varies a good deal depending on the physical properties of the substance in question. Properties such as magnetism and electrical resistance are closely related to the internal structural properties of the particles themselves, such as the magnetization processes of their respective magnetic domains, and the mean free path of charged bodies. This internal structure therefore limits the size of the superfine particles. In ceramic processing, on the other hand, the surface area of the particles themselves becomes an even more important factor than their internal structure. In this case, the size of the superfine particles is determined by the interaction between water and solvents on the surface of the particles.

Authors and Affiliations

  • Waseda University School of Science and Engineering, Shinjuku, Tokyo, Japan

    Noboru Ichinose

  • Seikei University, Kichijoji, Musashinoshi, Tokyo, Japan

    Yoshiharu Ozaki

  • Vacuum Metallurgical Co., Ltd., Tsukubashi, Ibaragi, Japan

    Seiichirō Kashū

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