XX.—Changes of Electrical Resistance accompanying Longitudinal and Transverse Magnetizations in Nickel

1914 ◽  
Vol 33 ◽  
pp. 200-224 ◽  
Author(s):  
C. G. Knott
Keyword(s):  
High Temperatures ◽  
Electrical Resistance ◽  
Nickel Wire ◽  
Appreciable Change ◽  
High Fields ◽  
Very High

In 1903 I communicated to the Society a paper on the relation between magnetization and resistance of nickel at high temperatures (1). In this paper the magnetization was along the direction in which the resistance was measured. A second paper, in which the magnetization was transverse to the direction in which the resistance was measured, was communicated in 1906 (2). In these later experiments a flat coil of nickel wire was used; and it was necessary to use very high fields before an appreciable change of resistance was obtained.

scholarly journals XIX.—Magnetization and Resistance of Nickel Wire at High Temperatures. Part II.

1907 ◽  
Vol 45 (3) ◽  
pp. 547-554
Author(s):  
C. G. Knott
Keyword(s):  
High Temperature ◽  
High Temperatures ◽  
Electrical Resistance ◽  
British Association ◽  
Nickel Wire ◽  
Present Communication ◽  
Association Meeting ◽  
The Subject ◽  
The Wire

The experiments which form the subject of the present communication were carried out two years ago, and supplement results already published. A brief note of some of the results was read before the Society in June 1904, and was also read before the British Association Meeting at Cambridge in August of the same year.The previous paper discussed the effect of high temperature on the relation between electrical resistance and magnetization when the wire was magnetized longitudinally, that is, in the direction in which the resistance was measured.The present results have to do with the effect of high temperature on the relation between resistance and magnetization when the magnetization was transverse to the direction along which the resistance was measured.

Beyond Ni-based superalloys: Development of CoRe-based alloys for gas turbine applications at very high temperatures

2011 ◽  
Vol 102 (9) ◽  
pp. 1125-1132 ◽  
Author(s):  
Debashis Mukherji ◽  
Joachim Rösler ◽  
Pavel Strunz ◽  
Ralph Gilles ◽  
Gerhard Schumacher ◽  
...  
Keyword(s):  
Gas Turbine ◽  
High Temperatures ◽  
Very High

Interferometric testing at very high temperatures by TV holography (ESPI)

1988 ◽  
Vol 28 (3) ◽  
pp. 315-321 ◽  
Author(s):  
J. T. Malmo ◽  
O. J. Jøkberg ◽  
G. A. Slettemoen
Keyword(s):  
High Temperatures ◽  
Very High

scholarly journals Gaseous combustion at high pressures. —Part X. The co-volume corrections, maximum temperatures and dissociation of steam and carbon dioxide in explosions

1928 ◽  
Vol 119 (782) ◽  
pp. 464-480
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Internal Energy ◽  
High Temperatures ◽  
High Pressures ◽  
Internal Combustion ◽  
Systematic Survey ◽  
Explosion Method ◽  
Maximum Temperatures ◽  
Very High

During the researches upon high-pressure explosions of carbonic oxide-air, hydrogen-air, etc., mixtures, which have been described in the previous papers of this series, a mass of data has been accumulated relating to the influence of density and temperature upon the internal energy of gases and the dissociation of steam and carbon dioxide. Some time ago, at Prof. Bone’s request, the author undertook a systematic survey of the data in question, and the present paper summarises some of the principal results thereof, which it is hoped will throw light upon problems interesting alike to chemists, physicists and internal-combustion engineers. The explosion method affords the only means known at present of determining the internal energies of gases at very high temperatures, and it has been used for this purpose for upwards of 50 years. Although by no means without difficulties, arising from uncertainties of some of the assumptions upon which it is based, yet, for want of a better, its results have been generally accepted as being at least provisionally valuable. Amongst the more recent investigations which have attracted attention in this connection should be mentioned those of Pier, Bjerrum, Siegel and Fenning, all of whom worked at low or medium pressures.

MAS-NMR at very high temperatures

2004 ◽  
Vol 26 (2) ◽  
pp. 84-86 ◽  
Author(s):  
Leo van Wüllen ◽  
Georg Schwering ◽  
Ernst Naumann ◽  
Martin Jansen
Keyword(s):  
High Temperatures ◽  
Mas Nmr ◽  
Very High

Reactor Core Materials Interactions at Very High Temperatures

1989 ◽  
Vol 87 (1) ◽  
pp. 327-333 ◽  
Author(s):  
Peter Hofmann ◽  
Siegfried J. L. Hagen ◽  
Gerhard Schanz ◽  
Alfred Skokan
Keyword(s):  
High Temperatures ◽  
Reactor Core ◽  
Very High ◽  
Core Materials

XXXVII.—On a Sensitive State induced in Magnetic Materials by Thermal Treatment.

1908 ◽  
Vol 28 ◽  
pp. 615-626
Author(s):  
James G. Gray ◽  
Alexander D. Ross
Keyword(s):  
Thermal Treatment ◽  
Electrical Resistance ◽  
Room Temperature ◽  
Temperature Scale ◽  
Steel Wire ◽  
Steady Temperature ◽  
Appreciable Change ◽  
Fatigue Effect ◽  
Stone Slab ◽  
Equal Temperature

SUMMARY1. Nickel and the Heusler alloy give “sensitive states” of nearly 2 and about 5 per cent. respectively for a magnetising field of 8 C.G.S. units.2. Steel wire specimens dropped vertically on a stone slab from a height of 1 metre showed a reduction of 37 per cent, in the “sensitive state” for a single fall, 49 per cent, for three falls, 62 per cent, for ten falls, and 73 per cent, for fifty falls.3. After the “sensitive state” has been removed from a specimen by the process of demagnetising by reversals, it cannot be completely restored by reannealing. That is, the specimens exhibit a fatigue effect.4. In the case of one variety of steel, the “sensitive state” had been reduced to less than one-half its original value after seven annealings, and to one-fifth after seventeen.5. No recovery from the fatigue condition was observed in specimens which had been laid aside for fifty-four days.6. Repeated annealings without intermediate magnetic testing showed neither an augmentation of the “sensitive state” nor a fatigue effect.7. Specimens demagnetised at −190° C., heated to room temperature, and cooled again to −190° C., showed a small “sensitive state” at that temperature.8. Larger effects were induced by heating from −190° C. to 15° C., or by cooling from 15° C. to −190° C.9. A “sensitive state” could be induced by any variation of temperature, but not by exposure to a steady temperature, either high or low. The effect is associated solely with change of temperature.10. The amount of “sensitive state” induced by equal temperature alterations varies with the position of the range on the temperature scale and with the material.11. The change from the “sensitive” to the normal condition is unaccompanied by any appreciable change in the specific electrical resistance or elastic constants of the material.

The Prospect of Superconductivity at Very High Temperatures

1987 ◽  
Vol 26 (S3-3) ◽  
pp. 2011 ◽  
Author(s):  
C. W. Chu ◽  
J. Bechtold ◽  
L. Gao ◽  
P. H. Hor ◽  
Z. J. Huang ◽  
...  
Keyword(s):  
High Temperatures ◽  
Very High
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