An Electron Microscope Study on Fine Metal Particles Prepared by Evaporation in Argon Gas at Low Pressure

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概要

• 論文の詳細を見る

• Fine particles of various metals (Mg, Al, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ag, Cd, Sn, Au, Pb and Bi) were prepared by evaporation in argon gas at low pressure. The evaporation was carried out in an ordinary vacuum evaporation unit using a tungsten wire basket heater, after introducing the gas into the vacuum chamber. The average particle size was controlled by changing the pressure of the argon. Particle diameter varied from about one hundred Angstoms at 1 mm Hg to a few tenths of a micron at 30 mm Hg. It was proved by electron diffraction that the particles of all the metals (except Pb) were not seriously oxidized in the air. Electron micrographs showed well defined crystal habits for some metals, e.g. hexagonal plates for magnesium and cubes for chromium. Remarkable "necklace-like arrangements" were observed for particles of the ferromagnetic metals. Many electron micrographs and diffraction patterns are reproduced to show the size, shape, arrangement and state of oxidation of the particles.

• 社団法人応用物理学会の論文
• 1963-11-15

著者

• Kimoto Kazuo

  Physics Laboratory, Department of General Education, Nagoya University

• Kimoto Kazuo

  Physical Institute Nagoya University

• Uyeda Ryozi

  Physical Institute Nagoya University

• Uyeda Ryozi

  Physical Institute Faculty Of Science Nagoya University

• KAMIYA Yoshihiro

  Physical Institute, Nagoya University

• NONOYAMA Minoru

  Physical Institute, Nagoya University

• Nonoyama Minoru

  Physical Institute Nagoya University

• Kamiya Yoshihiro

  Physical Institute Nagoya University

• Kimoto K.

  Physical Institute, Nagoya University

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