Relation Between the Chemical Short-Range Order in Liquid and Amorphous Alloys

1981 ◽  
Vol 8 ◽  
Author(s):  
C.N.J. Wagneri ◽  
H. Ruppersberg
Keyword(s):  
Amorphous Alloys ◽  
Short Range ◽  
Short Range Order ◽  
Nearest Neighbor ◽  
Diffraction Theory ◽  
Range Order ◽  
Glassy Alloys ◽  
Structure Factors ◽  
Partial Interference

ABSTRACTRecent advances in both diffraction theory and experiment have led to the determination of the topological and chemical short-range order in liquid alloys and metallic glasses. In binary alloys, three partial interference functions (or partial structure factors) must be determined to evaluate the Warren chemical short-range order parameter α. Examples of recent attempts to determine α in binary liquid and glassy alloys are given. In most glasses, studied so far, evidence exists for the occurrence of unlike nearest neighbor ordering which must be present in the liquid state.

Short Range Structure of Amorphous Ni50Ta50-Alloys by Means of X-Ray- and Neutron-Diffraction

1992 ◽  
Vol 47 (7-8) ◽  
pp. 826-832 ◽  
Author(s):  
H. Uhlig ◽  
L. Rohr ◽  
H.-J. Güntherodt ◽  
P. Fischer ◽  
P. Lamparter ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Short Range ◽  
Short Range Order ◽  
Nearest Neighbor ◽  
Range Order ◽  
Partial Structure ◽  
X Ray ◽  
Coordination Numbers ◽  
Binding Behavior ◽  
Structure Factors

Abstract Amorphous Ni50Ta50-samples with their high crystallization temperature of 985 K were investigated. To evaluate the three partial structure factors of amorphous Ni50Ta50 one X-ray diffraction experiment was performed with Ni50Ta50 and two neutron diffraction experiments with Co10Ni40Ta50 and with Ni50Ta50, respectively. The Bhatia-Thornton partial structure factor SCC(Q) indicates rather strong chemical short range order which also explains the premaximum observed in the Faber-Ziman partial SNiNi(Q)-function. The nearest neighbor distance is 2.82 Å for Ni-Ni, 2.91 Å for Ta-Ta, and is shortest for Ni-Ta, 2.44 Å. The coordination numbers are NNiNi = 4.9, NTaTa = 8.2, and NNiTa = 6.0. We report on the chemical short range order and the possible binding behavior in a-Ni50Ta50 and compare the present results with those reported in the literature on a-Ni40Ti60 as well as on a-Ni55Ta45

A NEUTRON DIFFRACTION DETERMINATION OF SHORT RANGE ORDER IN A Ni63.7Zr36.3 GLASS

1985 ◽  
Vol 46 (C8) ◽  
pp. C8-87-C8-92 ◽  
Author(s):  
R. Bellissent ◽  
J. Bigot ◽  
Y. Calvayrac ◽  
S. Lefebvre ◽  
A. Quivy
Keyword(s):  
Neutron Diffraction ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Diffraction Determination

DETERMINATION OF SHORT RANGE ORDER (SRO) PARAMETERS FROM EXAFS PAIR DISTRIBUTION FUNCTIONS OF OXIDE AND SILICATE SOLID SOLUTIONS

1986 ◽  
Vol 47 (C8) ◽  
pp. C8-845-C8-848
Author(s):  
G. A. WAYCHUNAS ◽  
W. A. DOLLASE ◽  
C. R. ROSS
Keyword(s):  
Solid Solutions ◽  
Short Range ◽  
Short Range Order ◽  
Distribution Functions ◽  
Range Order ◽  
Pair Distribution Functions

Topological and Chemical Short-Range Order in Undercooled and Stable Melts of Al13(Co,Fe)4 Alloys

2003 ◽  
Vol 805 ◽  
Author(s):  
Dirk Holland-Moritz ◽  
Thomas Schenk ◽  
Virginie Simonet ◽  
Robert Bellissent
Keyword(s):  
Short Range ◽  
Short Range Order ◽  
Electromagnetic Levitation ◽  
Processing Technique ◽  
Range Order ◽  
Partial Structure ◽  
Containerless Processing ◽  
Elastic Neutron ◽  
Structure Factors ◽  
Elastic Neutron Scattering

ABSTRACTThe short-range order of stable and deeply undercooled liquids of Al13(Co,Fe)4 alloys forming polytetrahedral phases is investigated by combining the containerless processing technique of electromagnetic levitation with elastic neutron scattering. Partial structure factors were inferred from the diffraction data which allow an analysis of both, the topological and the chemical short-range order of these alloy melts as a function of the temperature.

Short range order in (Fe, Co, Ni)75Si15B10 amorphous alloys determined from magnetic anisotropy

1985 ◽  
Vol 54 (12) ◽  
pp. 1059-1063 ◽  
Author(s):  
A. Hernando ◽  
V. Madurga ◽  
J.M. Barandiarán ◽  
O.V. Nielsen
Keyword(s):  
Magnetic Anisotropy ◽  
Amorphous Alloys ◽  
Short Range ◽  
Short Range Order ◽  
Range Order

scholarly journals Quantitative determination of short-range order in magnetostrictive Fe-12.5 at. % Ga alloy single crystals

AIP Advances ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 095203 ◽  
Author(s):  
Richard A. Laroche ◽  
Sivaraman Guruswamy
Keyword(s):  
Quantitative Determination ◽  
Single Crystals ◽  
Short Range ◽  
Short Range Order ◽  
Range Order

Effect of swift heavy ion irradiation on the short range order in novel electrodeposited ternary amorphous alloys

2013 ◽  
Vol 91 ◽  
pp. 166-169
Author(s):  
S. Stichleutner ◽  
E. Kuzmann ◽  
G.B. Lak ◽  
M. El-Sharif ◽  
C.U. Chisholm ◽  
...  
Keyword(s):  
Amorphous Alloys ◽  
Short Range ◽  
Short Range Order ◽  
Ion Irradiation ◽  
Heavy Ion ◽  
Range Order ◽  
Swift Heavy Ion Irradiation ◽  
Heavy Ion Irradiation ◽  
Swift Heavy Ion

Effect of short-range order on the magnetic properties of Fe-B-C amorphous alloys: NMR and magnetization measurements

1992 ◽  
Vol 45 (9) ◽  
pp. 4695-4699 ◽  
Author(s):  
S. H. Ge ◽  
M. X. Mao ◽  
G. L. Chen ◽  
Z. H. Chen ◽  
C. L. Zhang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloys ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Magnetization Measurements
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