Home

Citation: Pan Xue-Min, Bian Xiu-Fang, Qin Jing-Yu, Wang Wei-Min. MediumRange Order Structure Clusters in Cu12％Al Elloys Melt[J]. Acta Physico-Chimica Sinica, ;2001, 17(08): 708-712. doi: 10.3866/PKU.WHXB20010808 shu

MediumRange Order Structure Clusters in Cu12％Al Elloys Melt

1.
Key Laboratory of Liquid Structure and Heredity of Materials, Education of Ministry, Shandong University, Jinan　250061

Received Date: 12 February 2001
Available Online: 15 August 2001

Using Xray diffraction, the structure factors of molten Cu12％(mass fraction)Al alloys and pure copper have been investigated. Distinct prepeak(the prepeak occurs at values of scattering vector Q=18.5 nm－1) has been found in the structure factor of Cu12％Al alloys melt at 1250 ℃. The prepeak in the liquid alloy increases with decreasing temperature. The prepeak is a sign of mediumrange order. Rapid solidified ribbons prepared by the single roller meltspinning technique have been investigated with Xray scattering. The phase in the ribbons is Cu3Al with superstructure. The structural unit size of mediumrange order clusters in liquid equals to intercrystal face distance d111 of Cu3Al. According to the nearest neighbor distance and coordination number, obtained from the pair correlation function, and basic unit model of cluster, the length of cubic edge can be calculated, which meets the parameter of the crystalline structure given by literature. So it is speculated that there are DO3 structure clusters in the liquid Cu12％Al alloy. This stable mediumrange order can exist up to nearly 200 ℃ above liquidus and the structural correlation length increases with decreasing temperature.
- Cu-12 ％Al alloy liquid structure;Structure factor;Prepeak;X-ray diffraction
1. [1]
  Hongwei Ma , Hui Li . Three Methods for Structure Determination from Powder Diffraction Data. University Chemistry, 2024, 39(3): 94-102. doi: 10.3866/PKU.DXHX202310035
2. [2]
  Yuqiao Zhou , Weidi Cao , Shunxi Dong , Lili Lin , Xiaohua Liu . Study on the Teaching Reformation of Practical X-ray Crystallography. University Chemistry, 2024, 39(3): 23-28. doi: 10.3866/PKU.DXHX202303003
3. [3]
  Wei Li , Guoqiang Feng , Ze Chang . Teaching Reform of X-ray Diffraction Using Synchrotron Radiation in Materials Chemistry. University Chemistry, 2024, 39(3): 29-35. doi: 10.3866/PKU.DXHX202308060
4. [4]
  Liuyun Chen , Wenju Wang , Tairong Lu , Xuan Luo , Xinling Xie , Kelin Huang , Shanli Qin , Tongming Su , Zuzeng Qin , Hongbing Ji . Soft template-induced deep pore structure of Cu/Al₂O₃ for promoting plasma-catalyzed CO₂ hydrogenation to DME. Acta Physico-Chimica Sinica, 2025, 41(6): 100054-. doi: 10.1016/j.actphy.2025.100054
5. [5]
  Peng ZHOU , Xiao CAI , Qingxiang MA , Xu LIU . Effects of Cu doping on the structure and optical properties of Au₁₁(dppf)₄Cl₂ nanocluster. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1254-1260. doi: 10.11862/CJIC.20240047
6. [6]
  Hongjie SHEN , Haozhe MIAO , Yuhe YANG , Yinghua LI , Deguang HUANG , Xiaofeng ZHANG . Synthesis, crystal structure, and fluorescence properties of two Cu(Ⅰ) complexes based on pyridyl ligand. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 855-863. doi: 10.11862/CJIC.20250009
7. [7]
  Hongwei Ma , Fang Zhang , Hui Ai , Niu Zhang , Shaochun Peng , Hui Li . Integrated Crystallographic Teaching with X-ray,TEM and STM. University Chemistry, 2024, 39(3): 5-17. doi: 10.3866/PKU.DXHX202308107
8. [8]
  Liang TANG , Jingfei NI , Kang XIAO , Xiangmei LIU . Synthesis and X-ray imaging application of lanthanide-organic complex-based scintillators. Chinese Journal of Inorganic Chemistry, 2024, 40(10): 1892-1902. doi: 10.11862/CJIC.20240139
9. [9]
  Chongjing Liu , Yujian Xia , Pengjun Zhang , Shiqiang Wei , Dengfeng Cao , Beibei Sheng , Yongheng Chu , Shuangming Chen , Li Song , Xiaosong Liu . Understanding Solid-Gas and Solid-Liquid Interfaces through Near Ambient Pressure X-Ray Photoelectron Spectroscopy. Acta Physico-Chimica Sinica, 2025, 41(2): 100013-. doi: 10.3866/PKU.WHXB202309036
10. [10]
  Fangxuan Liu , Ziyan Liu , Guowei Zhou , Tingting Gao , Wenyu Liu , Bin Sun . Hollow structured photocatalysts. Acta Physico-Chimica Sinica, 2025, 41(7): 100071-. doi: 10.1016/j.actphy.2025.100071
11. [11]
  Yan Liu , Yuexiang Zhu , Luhua Lai . Introduction to Blended and Small-Class Teaching in Structural Chemistry: Exploring the Structure and Properties of Crystals. University Chemistry, 2024, 39(3): 1-4. doi: 10.3866/PKU.DXHX202306084
12. [12]
  Zitong Chen , Zipei Su , Jiangfeng Qian . Aromatic Alkali Metal Reagents: Structures, Properties and Applications. University Chemistry, 2024, 39(8): 149-162. doi: 10.3866/PKU.DXHX202311054
13. [13]
  Wen-Bing Hu . Systematic Introduction of Polymer Chain Structures. University Chemistry, 2025, 40(4): 15-19. doi: 10.3866/PKU.DXHX202401014
14. [14]
  Kun WANG , Wenrui LIU , Peng JIANG , Yuhang SONG , Lihua CHEN , Zhao DENG . Hierarchical hollow structured BiOBr-Pt catalysts for photocatalytic CO₂ reduction. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1270-1278. doi: 10.11862/CJIC.20240037
15. [15]
  Haitang WANG , Yanni LING , Xiaqing MA , Yuxin CHEN , Rui ZHANG , Keyi WANG , Ying ZHANG , Wenmin WANG . Construction, crystal structures, and biological activities of two Ln^Ⅲ₃ complexes. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1474-1482. doi: 10.11862/CJIC.20240188
16. [16]
  Dongju Zhang . Exploring the Descriptions and Connotations of Basic Concepts of Teaching Crystal Structures. University Chemistry, 2024, 39(3): 18-22. doi: 10.3866/PKU.DXHX202304003
17. [17]
  Weina Wang , Fengyi Liu , Wenliang Wang . “Extracting Commonality, Delving into Typicals, Deriving Individuality”: Constructing a Knowledge Graph of Crystal Structures. University Chemistry, 2024, 39(3): 36-42. doi: 10.3866/PKU.DXHX202308029
18. [18]
  Ji Qi , Jianan Zhu , Yanxu Zhang , Jiahao Yang , Chunting Zhang . Visible Color Change of Copper (II) Complexes in Reversible SCSC Transformation: The Effect of Structure on Color. University Chemistry, 2024, 39(3): 43-57. doi: 10.3866/PKU.DXHX202307050
19. [19]
  Wenyan Dan , Weijie Li , Xiaogang Wang . The Technical Analysis of Visual Software ShelXle for Refinement of Small Molecular Crystal Structure. University Chemistry, 2024, 39(3): 63-69. doi: 10.3866/PKU.DXHX202302060
20. [20]
  Junqiao Zhuo , Xinchen Huang , Qi Wang . Symbol Representation of the Packing-Filling Model of the Crystal Structure and Its Application. University Chemistry, 2024, 39(3): 70-77. doi: 10.3866/PKU.DXHX202311100

Get Citation

PDF

XML

Metrics

PDF Downloads(2393)
Abstract views(3324)
HTML views(44)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return