CRYSTALLIZATION AND FRACTAL STRUCTURE OF MOLYBDENA SINGLE CRYSTALS
ZHANG Jizhong;LI Hengde Tsinghua University; Beijing Lecturer;Department of Materials Science and Engineering; Tsinghua University; Beijing 100084
Cite this article:
ZHANG Jizhong;LI Hengde Tsinghua University; Beijing Lecturer;Department of Materials Science and Engineering; Tsinghua University; Beijing 100084. CRYSTALLIZATION AND FRACTAL STRUCTURE OF MOLYBDENA SINGLE CRYSTALS. Acta Metall Sin, 1990, 26(4): 135-138.
Abstract During a molybdenum metal sheet heated properly at 900℃ in an oxi-dizing ambient, the Mo_5O_(14) single crystals will grow. The size of the most coarsesingle crystals is up to 15×1.1 mm and 310 nm thick as measured by Rutherfordback scattering spectrometry. Some fractal structure consisting of many molybdenawhiskers are observed after heating at 750℃. An approach to explain the crystalgrowth and fractal structure has been discussed.
1 Kihlborg L. Advances in Chemistry, Ser. 39, Washington D. C.: American Chemical Society, 1963 2 Caprile B, Levi A C, Liggieri L. In: Pietronero L, Tosatti E eds., Practals in Physics, Amsterdam: Elsevier, 1986: 279 3 Pan J S. Acta Crystallogr, to be published 4 Chu W K, Mayer J W, Nicolet M A. Backscattering Spectrometry, New York: Academic, 1978 5 Zhang Jizhong, Tao Kun, Yan Xinshui. Nucl Instrum Methods, B45 (1990) 239 6 Berkowitz J. Inghram M G, Chupka W A. J Chem Phys, 1957; 27: 842 7 黄昀、物理,1986;15:269 8 Schaefer D W. MRS Bulletin, 1988; 13(2) : 22k