CRYSTALLOGRAPHIC CHARACTERISTICS OF THE AL-CO DECAGONAL QUASI-CRYSTAL AND ITS MONOCLINIC APPROXIMANT TAU(2)-AL13CO4

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	CRYSTALLOGRAPHIC CHARACTERISTICS OF THE AL-CO DECAGONAL QUASI-CRYSTAL AND ITS MONOCLINIC APPROXIMANT TAU(2)-AL13CO4
	MA, XL ; KUO, KH
刊名	METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
	1994
卷号	25 期号:1 页码:47
关键词	QUASI-CRYSTAL ICOSAHEDRAL SYMMETRY AL65CU20CO15 ALLOYS PHASE TWINS
ISSN号	1073-5623
通讯作者	MA, XL: CHINESE ACAD SCI,BEIJING LAB ELECTRON MICROSCOPY,BEIJING 100080,PEOPLES R CHINA.
中文摘要	The binary Al-Co decagonal quasicrystal (DQC) is stable between 800-degrees-C and 900-degrees-C and transforms to a primitive monoclinic phase (a = 3.984 nm, b = 0.8148 nm, c = 3.223 nm, and beta = 107.97 deg) above 950-degrees-C or below 750-degrees-C. The composition of this crystalline approximant is similar to the C-centered monoclinic Al13Co4 but with a and c parameters tau2 (tau = (1 + square-root 5)/2 = 1.61803. . . ) times larger. This tau2-Al13Co4 occurs frequently as (001) and (100) twins. The transformation of the Al-Co DQC to (100) twins of tau2-Al13Co4 has been followed by selected-area electron diffraction. With reference to the main zonal electron diffraction patterns and the X-ray diffractogram of the Al-Co DQC, the X-ray powder diffractogram of tau2-Al13Co4 with a giant unit cell can be successfully indexed.
收录类别	SCI
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/35474]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	MA, XL,KUO, KH. CRYSTALLOGRAPHIC CHARACTERISTICS OF THE AL-CO DECAGONAL QUASI-CRYSTAL AND ITS MONOCLINIC APPROXIMANT TAU(2)-AL13CO4[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,1994,25(1):47.
APA	MA, XL,&KUO, KH.(1994).CRYSTALLOGRAPHIC CHARACTERISTICS OF THE AL-CO DECAGONAL QUASI-CRYSTAL AND ITS MONOCLINIC APPROXIMANT TAU(2)-AL13CO4.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,25(1),47.
MLA	MA, XL,et al."CRYSTALLOGRAPHIC CHARACTERISTICS OF THE AL-CO DECAGONAL QUASI-CRYSTAL AND ITS MONOCLINIC APPROXIMANT TAU(2)-AL13CO4".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 25.1(1994):47.