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

A new Nickel based thermocouple for high temperature applications in gas turbines has been devised at the Department of Material Science and Metallurgy of the University of Cambridge. This paper describes the new features of the thermocouple, the drift tests on the first prototype and compares the behaviour of the new sensor with conventional mineral insulated metal sheathed Type K thermocouples: the new thermocouple has a significant improvement in terms of drift and temperature capabilities. Metallurgical analysis has been undertaken on selected sections of the thermocouples exposed at high temperatures which rationalises the reduced drift of the new sensor. A second prototype will be tested in follow-on research, from which further improvements in drift and temperature capabilities are expected.

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

Experimental Mechanics ◽

10.1007/bf02329029 ◽

1988 ◽

Vol 28 (3) ◽

pp. 315-321 ◽

Cited By ~ 17

Author(s):

J. T. Malmo ◽

O. J. Jøkberg ◽

G. A. Slettemoen

Keyword(s):

High Temperatures ◽

Very High

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

Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character ◽

10.1098/rspa.1928.0105 ◽

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.

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MAS-NMR at very high temperatures

Solid State Nuclear Magnetic Resonance ◽

10.1016/j.ssnmr.2004.03.001 ◽

2004 ◽

Vol 26 (2) ◽

pp. 84-86 ◽

Cited By ~ 12

Author(s):

Leo van Wüllen ◽

Georg Schwering ◽

Ernst Naumann ◽

Martin Jansen

Keyword(s):

High Temperatures ◽

Mas Nmr ◽

Very High

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Reactor Core Materials Interactions at Very High Temperatures

Nuclear Technology ◽

10.13182/nt-tmi2-146 ◽

1989 ◽

Vol 87 (1) ◽

pp. 327-333 ◽

Cited By ~ 52

Author(s):

Peter Hofmann ◽

Siegfried J. L. Hagen ◽

Gerhard Schanz ◽

Alfred Skokan

Keyword(s):

High Temperatures ◽

Reactor Core ◽

Very High ◽

Core Materials

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Problems in the Mechanical Design of Gas Turbines

Journal of Applied Mechanics ◽

10.1115/1.4009657 ◽

1947 ◽

Vol 14 (2) ◽

pp. A99-A102

Author(s):

Ronald B. Smith

Keyword(s):

Gas Turbine ◽

High Temperatures ◽

Gas Turbines ◽

Mechanical Design

Abstract High temperatures involved in the operation of the gas turbine have introduced many new problems in the properties of the metals with which the designer has to work. This paper outlines some of these and offers a line of approach taken successfully by the author’s company in solving them.

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