Anomalous concentration dependence of the resistivity of liquid NiSb alloys

Benazzi, N.; Gasser, J.G.; Terzieff, P.

doi:10.1016/0022-3093(90)90960-t

Cited by 6 publications

(2 citation statements)

References 6 publications

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“…The electrical resistivity was measured using a four-probe technique on metals having 99.999% purity. In this work, we used a quartz cell fitted with tungsten electrodes, identical to that described by Benazzi et al [9]. Further experimental details have been described by Gasser [10].…”

Section: Experimental Methodsmentioning

confidence: 99%

Electrical resistivity of Ni - In liquid alloys

Rhazi

Auchet

Gasser

1997

J. Phys.: Condens. Matter

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The electrical resistivity of liquid alloys has been measured as a function of temperature (between the melting point and ) and of concentration in 10 at.% steps over the whole phase diagram. The concentration dependence of the resistivity shows a maximum at about 60 at.% nickel. In the neighbourhood of this concentration, the temperature dependence changes sign. We have interpreted semi-quantitatively our experimental results using the extended Faber - Ziman theory within the t matrix formalism.

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Section: Experimental Methodsmentioning

confidence: 99%

Electrical resistivity of Ni - In liquid alloys

Rhazi

Auchet

Gasser

1997

J. Phys.: Condens. Matter

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“…The abnormal behaviour of resistivity in pure antimony has been reported [3]. When melting, Sb still retains the features of a semimetal, resulting in abnormal behaviour of the resistivity for pure antimony [4][5][6][7][8][9][10]. With the methods of electrical resistivity and EXAFS [11][12][13], covalent bonds deriving from solid states were found retained in Sb-rich In-Sb melts and liquid antimony, and then they broke at high temperature.…”

Section: Introductionmentioning

confidence: 95%

Electrical resistivity of liquid Sn–Sb alloy

Zu¹,

Rong-rong²,

Xi³

et al. 2006

J. Phys.: Condens. Matter

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An investigation of the temperature dependence of the electrical resistivity (ρ–T) of Sn–Sb alloys is carried out, using the DC four-probe method. A clear turning point is observed in some compositions of the Sn–Sb melt, but not at every composition, at which the resistivity–temperature coefficient increases rapidly. The anomalous variation of the resistivity at certain temperatures for the Sn–Sb melt may be due to the remaining covalent and heterogeneous bonds and also the difference in bonding ability between Sn and Sb atoms, which might yield temperature-induced structure changes in some compositions of liquid Sn–Sb alloys. Besides this, analysis of the composition dependence of the resistivity is also included in this paper.

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Anomalous temperature dependence of the electrical resistivity of molten Sb

Wang

2001

Chin.Sci.Bull.

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Abstr act Using the d.c. four-probe method, the electrical resistivity of high-purity liquid Sb has been accurately measured as functions of temperature. It is observed that the resistivity of liquid Sb changes abnormally with increasing temperature, which is very different from that of simple liquid metals. Based on the reported structure factor at several temperatures, the results obtained in this work have been discussed and interpreted qualitatively according to Ziman theory. The analysis suggests that the existence of shortrange order structure near the melting point can account for the abnormal phenomenon observed in the resistivity of liquid Sb, in which semimetal-metal transaction takes place in the melting process. At the same time, the progress of the structure change of liquid Sb with temperature has also been pointed out.Keywords: liquid metal, electrical resistivity, structure change.As a kind of primary state of matter, liquid state has its own special structure and physical properties comparing to the solid and gaseous states. In addition, the liquid state is the origin of crystalline and some non-crystalline materials. So it is very important to investigate the liquid, especially the high temperature melts.The study of the electronic transport property of liquid Sb has been paid enough attention, because the electron mean free path in liquid Sb is just a little larger than its mean interatomic distance, which might be a limited case for the application of Ziman theory [1] . Based on the nearly free electron model, this theory has been successfully applied to simple liquid metals. It is concluded that Sb makes semimetal-metal transaction take place in the melting process [2] together with coordination number increasing from 3 of crystal to 4.6 8.7 of liquid in the vicinity of melting temperature [3 5] , but its coordination number is still far below that of a simple liquid metal (~11). The measurement of self-diffusion coefficient indicated that liquid Sb shows semi-metallic behaviour [6] . In addition, the published diffraction patterns near melting temperature show a subsidiary maximum on the high angle side of the main peak [3,7,8] . All these facts suggest that short-range ordered structures exist in liquid Sb at lower temperature. However, by far it is still not clear how the structure changes with temperature due to the difficulties resulting from high temperature and high vapour pressure of liquid Sb.Electrical resistivity is a very useful tool that can help in a general understanding of liquid materials, so the electrical resistivity of liquid Sb was measured by many authors [9 16] , but the results do not agree well with each other. It should be stressed that no valuable results have been obtained because of lower accuracy and dispersive data. In this work, the resistivity of high pure liquid Sb has been accurately measured and the structure change has also been analyzed. ExperimentalThe experimental method used in this note was the d.c. four-probe method. U-shaped quartz cells (fitted w...

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Anomalous concentration dependence of the resistivity of liquid NiSb alloys

Cited by 6 publications

References 6 publications

Electrical resistivity of Ni - In liquid alloys

Electrical resistivity of Ni - In liquid alloys

Electrical resistivity of liquid Sn–Sb alloy

Anomalous temperature dependence of the electrical resistivity of molten Sb

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