Structure of quasicrystalline approximant phase in the Al-Pd-Mn system

被引：112

作者：

Boudard, M ^{[1
]}

Klein, H ^{[1
]}

deBoissieu, M ^{[1
]}

Audier, M ^{[1
]}

Vincent, H ^{[1
]}

机构：

[1] MAT & GENIE PHYS LAB,F-38402 ST MARTIN DHERES,FRANCE

来源：

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES | 1996年 / 74卷 / 04期

关键词：

D O I：

10.1080/01418619608242169

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The structure of an orthorhombic phase (xi' phase) with Al73.5Pd22.4Mn4.1 composition was solved by applying the direct methods and refined by a least-squares procedure. The space group is Pnma and the magnitudes of cell parameters are a = 23.541 Angstrom, b = 16.566 Angstrom and c = 12.339 Angstrom. The final reliability factor is R = 0.072 for 3419 independent reflections. The structure is made up of partial Mackay icosahedra in which the Pd atoms form icosahedra centred on Mn atoms. These central Mn atoms are located at the vertices of flattened hexagons arranged in quincunx. The xi' phase is nearly isomorphic to the Al3Pd structure and has a layer structure consisting of flat and puckered layers similar to what is found in Al3Mn and Al13Fe4.

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页码：939 / 956

页数：18

相关论文

共 34 条

[11] THE STRUCTURE OF AN AL-PD DECAGONAL QUASI-CRYSTAL STUDIED BY HIGH-RESOLUTION ELECTRON-MICROSCOPY [J].

HIRAGA, K ;

ABE, E ;

MATSUO, Y .

PHILOSOPHICAL MAGAZINE LETTERS, 1994, 70 (03) :163-168

[12] STRUCTURE OF CO4AL13 [J].

HUDD, RC ;

TAYLOR, WH .

ACTA CRYSTALLOGRAPHICA, 1962, 15 (MAY) :441-&

[13] STRUCTURE OF THE QUASI-CRYSTAL-APPROXIMANT PHASE AL61.3CU7.4FE11.1CR17.2SI3 [J].

KANG, SS ;

MALAMAN, B ;

VENTURINI, G ;

DUBOIS, JM .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1992, 48 :770-776

[14] A GEOMETRIC APPROACH TO CHEMICAL ORDERING IN ICOSAHEDRAL STRUCTURES [J].

KATZ, A ;

GRATIAS, D .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1993, 153 :187-195

[15] Phason defects in Al-Pd-Mn approximant phases [J].

Klein, H ;

Audier, M ;

Boudard, M ;

deBoissieu, M ;

Beraha, L ;

Duneau, M .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1996, 73 (02) :309-331

[16]

KLEIN H, 1995, APERIODIC 94 LES DIA, P127

[17] THE STRUCTURAL MODEL OF AL-MN DECAGONAL QUASI-CRYSTAL BASED ON A NEW AL-MN APPROXIMANT [J].

LI, XZ ;

KUO, KH .

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1992, 65 (03) :525-533

[18] HREM STUDY AND STRUCTURAL MODELS OF THE (1/1,2/1)-ORTHORHOMBIC AND (2/1,1/1)-ORTHORHOMBIC APPROXIMANTS IN AN AL70CO15NI10TB5 ALLOY [J].

LI, XZ ;

YU, RC ;

ZHANG, Z ;

KUO, KH .

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1995, 71 (02) :261-272

[19] A DENSE NON-CRYSTALLOGRAPHIC PACKING OF EQUAL SPHERES [J].

MACKAY, AL .

ACTA CRYSTALLOGRAPHICA, 1962, 15 (SEP) :916-&

[20] THE STRUCTURE OF AL3PD - CLOSE RELATIONSHIP TO DECAGONAL QUASI-CRYSTALS [J].

MATSUO, Y ;

HIRAGA, K .

PHILOSOPHICAL MAGAZINE LETTERS, 1994, 70 (03) :155-161

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