Fluorescence thermometry for advanced high-temperature materials

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Advanced high-temperature materials, such as ceramics, metals, and composites, are of critical importance to the development of new and improved technologies worldwide. For aircraft, automobiles, or other combustion-engine powered systems, major efficiency improvements depend on the ability to operate at temperatures closer to the adiabatic limit of the chemical processes involved. Materials able to function at higher temperatures must therefore be introduced into improved designs. Jet turbine engines, for example, already require air cooled rotors and stators in order that the nickel alloys used will not deteriorate and fail from overheating. In the case of ceramics, optimum temperature usage will ... continued below

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6 p.

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Cates, M.R.; Beshears, D.L. & Allison, S.W. May 1, 1996.

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Description

Advanced high-temperature materials, such as ceramics, metals, and composites, are of critical importance to the development of new and improved technologies worldwide. For aircraft, automobiles, or other combustion-engine powered systems, major efficiency improvements depend on the ability to operate at temperatures closer to the adiabatic limit of the chemical processes involved. Materials able to function at higher temperatures must therefore be introduced into improved designs. Jet turbine engines, for example, already require air cooled rotors and stators in order that the nickel alloys used will not deteriorate and fail from overheating. In the case of ceramics, optimum temperature usage will often cause the refractory surfaces to glow red hot and the material itself to become partially translucent. For composites, especially where structural integrity, vibration resistance, and strength are concerned, the temperature behavior of dissimilar components must be well known and well understood before appropriate designs can be effected. As the need for higher temperature materials becomes increasingly more important, so does the requirement to properly measure the temperatures involved. Phosphor thermometry offers measurement solutions at very high temperatures that often cannot be achieved by more conventional methods. In this paper we discuss the phosphor technique and several examples of its application to high-temperature measurement.

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6 p.

Notes

OSTI as DE96010567

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  • Spring meeting of the European Materials Research Society, Strasbourg (France), 4-7 Jun 1996

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  • Other: DE96010567
  • Report No.: CONF-9606136--1
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 236282
  • Archival Resource Key: ark:/67531/metadc669774

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  • May 1, 1996

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  • June 29, 2015, 9:42 p.m.

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  • Jan. 22, 2016, 10:50 a.m.

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Cates, M.R.; Beshears, D.L. & Allison, S.W. Fluorescence thermometry for advanced high-temperature materials, article, May 1, 1996; Tennessee. (digital.library.unt.edu/ark:/67531/metadc669774/: accessed August 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.