Please wait a minute...
Acta Metall Sin  1990, Vol. 26 Issue (4): 135-138    DOI:
Current Issue | Archive | Adv Search |
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.

Download:  PDF(975KB) 
Export:  BibTeX | EndNote (RIS)      
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.
Key words:  molybdena      single crystal      fractal structure     
Received:  18 April 1990     

URL: 

https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1990/V26/I4/135

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
[1] ZHANG Jian, WANG Li, XIE Guang, WANG Dong, SHEN Jian, LU Yuzhang, HUANG Yaqi, LI Yawei. Recent Progress in Research and Development of Nickel-Based Single Crystal Superalloys[J]. 金属学报, 2023, 59(9): 1109-1124.
[2] LU Nannan, GUO Yimo, YANG Shulin, LIANG Jingjing, ZHOU Yizhou, SUN Xiaofeng, LI Jinguo. Formation Mechanisms of Hot Cracks in Laser Additive Repairing Single Crystal Superalloys[J]. 金属学报, 2023, 59(9): 1243-1252.
[3] ZHAO Peng, XIE Guang, DUAN Huichao, ZHANG Jian, DU Kui. Recrystallization During Thermo-Mechanical Fatigue of Two High-Generation Ni-Based Single Crystal Superalloys[J]. 金属学报, 2023, 59(9): 1221-1229.
[4] LI Jiarong, DONG Jianmin, HAN Mei, LIU Shizhong. Effects of Sand Blasting on Surface Integrity and High Cycle Fatigue Properties of DD6 Single Crystal Superalloy[J]. 金属学报, 2023, 59(9): 1201-1208.
[5] WANG Di, HE Lili, WANG Dong, WANG Li, ZHANG Siqian, DONG Jiasheng, CHEN Lijia, ZHANG Jian. Influence of Pt-Al Coating on Tensile Properties of DD413 Alloy at High Temperatures[J]. 金属学报, 2023, 59(3): 424-434.
[6] ZHANG Zixuan, YU Jinjiang, LIU Jinlai. Anisotropy of Stress Rupture Property of Ni Base Single Crystal Superalloy DD432[J]. 金属学报, 2023, 59(12): 1559-1567.
[7] ZHANG Shaohua, XIE Guang, DONG Jiasheng, LOU Langhong. Investigation on Eutectic Dissolution Behavior of Single Crystal Superalloy by Differential Scanning Calorimetry[J]. 金属学报, 2021, 57(12): 1559-1566.
[8] MA Dexin, ZHAO Yunxing, XU Weitai, PI Libo, LI Zhongxing. Surface Effect on Eutectic Structure Distribution in Single Crystal Superalloy Castings[J]. 金属学报, 2021, 57(12): 1539-1548.
[9] HE Siliang, ZHAO Yunsong, LU Fan, ZHANG Jian, LI Longfei, FENG Qiang. Effects of Hot Isostatic Pressure on Microdefects and Stress Rupture Life of Second-Generation Nickel-Based Single Crystal Superalloy in As-Cast and As-Solid-Solution States[J]. 金属学报, 2020, 56(9): 1195-1205.
[10] LIU Jinlai, YE Lihua, ZHOU Yizhou, LI Jinguo, SUN Xiaofeng. Anisotropy of Elasticity of a Ni Base Single Crystal Superalloy[J]. 金属学报, 2020, 56(6): 855-862.
[11] LI Yuancai, JIANG Wugui, ZHOU Yu. Effect of Nanopores on Tensile Properties of Single Crystal/Polycrystalline Nickel Composites[J]. 金属学报, 2020, 56(5): 776-784.
[12] MA Dexin,WANG Fu,XU Weitai,XU Wenliang,ZHAO Yunxing. Formation of Sliver Defects in Single CrystalCastings of Superalloys[J]. 金属学报, 2020, 56(3): 301-310.
[13] ZHAO Xu,SUN Yuan,HOU Xingyu,ZHANG Hongyu,ZHOU Yizhou,DING Yutian. Effect of Orientation Deviation on Microstructure and Mechanical Properties of Nickel-Based Single Crystal Superalloy Brazing Joints[J]. 金属学报, 2020, 56(2): 171-181.
[14] ZHANG Jian,WANG Li,WANG Dong,XIE Guang,LU Yuzhang,SHEN Jian,LOU Langhong. Recent Progress in Research and Development of Nickel-Based Single Crystal Superalloys[J]. 金属学报, 2019, 55(9): 1077-1094.
[15] LI Jiarong,XIE Hongji,HAN Mei,LIU Shizhong. High Cycle Fatigue Behavior of Second Generation Single Crystal Superalloy[J]. 金属学报, 2019, 55(9): 1195-1203.
No Suggested Reading articles found!