Neutron Diffraction Study on the Structure of the Metallic Glass Cu57Zr43

The structure of amorphous Cu57Zr43 has been investigated by neutron diffraction using the isotopic substitution method with the isotopes 63Cu and 65Cu besides natural Cu. From the scattering contribution of concentration fluctuations to the measured structure factors and from the atomic distances chemical ordering is concluded to exist in amorphous Cu57Zr43. The structural results are compared with previous experimental and theoretical investigations of Cu- Zr- and other binary metallic glasses formed by transition metals. Evidence is given that the topological as well as the chemical short range order is asymmetric in respect to both components in this type of metallic glasses

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Atomic Structure of Amorphous Metallic Ni81B19

Zeitschrift für Naturforschung A ◽

10.1515/zna-1982-1102 ◽

1982 ◽

Vol 37 (11) ◽

pp. 1223-1234 ◽

Cited By ~ 17

Author(s):

P. Lamparter ◽

W. Sperl ◽

S. Steeb

Keyword(s):

Neutron Diffraction ◽

Pair Correlation ◽

Isotopic Substitution ◽

Diffraction Experiment ◽

Substitution Method ◽

Distance Correlation ◽

Coordination Numbers ◽

Chemical Ordering ◽

Structure Factors ◽

Soft Spheres

The three partial Faber Ziman structure factors as well as the Bhatia Thornton structure factors of the metallic glass Ni81B19 were evaluated by neutron diffraction experiments using the isotopic substitution method. In one of the investigated specimens the isotopic composition of the components was adjusted in such a way as to make it possible to measure directly with one diffraction experiment the correlation between the metalloid atoms. From the three partial pair correlation functions the atomic distances and the partial coordination numbers are determined. The results demonstrate the strong chemical ordering in amorphous Ni81B19. Particularly the distance correlation between the boron atoms turned out to be very pronounced.The experimental results agree with the main features of a geometrical packing model of soft spheres.

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Neutron diffraction study on the hydration structure of carbonate ion by means of 12C/13C isotopic substitution method

Physica B Condensed Matter ◽

10.1016/j.physb.2006.05.067 ◽

2006 ◽

Vol 385-386 ◽

pp. 279-281 ◽

Cited By ~ 13

Author(s):

Yasuo Kameda ◽

Motoya Sasaki ◽

Shuji Hino ◽

Yuko Amo ◽

Takeshi Usuki

Keyword(s):

Neutron Diffraction ◽

Diffraction Study ◽

Neutron Diffraction Study ◽

Isotopic Substitution ◽

Substitution Method ◽

Carbonate Ion ◽

Hydration Structure

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Local Structure of the Amorphous Ni25Zr75-Alloy by Using the Isotope-Substitution Neutron Diffraction Method

Zeitschrift für Naturforschung A ◽

10.1515/zna-1991-1105 ◽

1991 ◽

Vol 46 (11) ◽

pp. 951-954

Author(s):

W.-M. Kuschke ◽

P. Lamparter ◽

S. Steeb

Keyword(s):

Neutron Diffraction ◽

Local Structure ◽

Short Range ◽

Short Range Order ◽

Diffraction Method ◽

Isotopic Substitution ◽

Isotope Substitution ◽

Coordination Numbers ◽

Structure Factors ◽

Neutron Diffraction Method

AbstractUsing neutron diffraction as well as the method of isotopic substitution the partial Bhatia-Thornton as well as the partial Faber-Ziman structure factors of amorphous Ni25Zr75 were determined. A compound forming tendency was found. The atomic distances, partial coordination numbers, and the chemical short range order parameter are evaluated.

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