Options extending the applicability of high-temperature irradiation-resistant thermocouples

Joy L. Rempe; Darrell L. Knudson; Keith G. Condie; John C. Crepeau; Joshua E. Daw

doi:10.13182/NT09-14

Options extending the applicability of high-temperature irradiation-resistant thermocouples

Joy L. Rempe
, Darrell L. Knudson
, Keith G. Condie
, John C. Crepeau
, Joshua E. Daw

Nuclear Science & Technology

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

Several options have been identified that could further enhance the reliability and extend the applicability ofigh-emperature irradiation-resistant the rmoço uples (HTIR-TCs) developed by the Idaho National Laboratory (INL) for in-pile testing, allowing their use in temperature applications as high as 1800°C. The INL and the University of Idaho (UI) investigated these options with the ultimate objective of providing recommendations for alternate thermocouple designs that are optimizedfor various applications. This paper reports results from INL/UI investigations. Results are reported from tests completed to evaluate the ductility, resolution, transient response, and stability of thermocouples made from specially formulated alloys of molybdenum and niobium, not considered in initial HTIR-TC development. In addition, this paper reports insights gained by comparing the peiformance of HTIR-TCs fabricated with various heat treatments and alternate geometries.

Original language	English
Pages (from-to)	169-177
Number of pages	9
Journal	Nuclear Technology
Volume	167
Issue number	1
DOIs	https://doi.org/10.13182/NT09-14
State	Published - 2009

Keywords

High-temperature thermo-couples
In-pile instrumentation

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10.13182/NT09-14

Cite this

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title = "Options extending the applicability of high-temperature irradiation-resistant thermocouples",

abstract = "Several options have been identified that could further enhance the reliability and extend the applicability ofigh-emperature irradiation-resistant the rmo{\c c}o uples (HTIR-TCs) developed by the Idaho National Laboratory (INL) for in-pile testing, allowing their use in temperature applications as high as 1800°C. The INL and the University of Idaho (UI) investigated these options with the ultimate objective of providing recommendations for alternate thermocouple designs that are optimizedfor various applications. This paper reports results from INL/UI investigations. Results are reported from tests completed to evaluate the ductility, resolution, transient response, and stability of thermocouples made from specially formulated alloys of molybdenum and niobium, not considered in initial HTIR-TC development. In addition, this paper reports insights gained by comparing the peiformance of HTIR-TCs fabricated with various heat treatments and alternate geometries.",

keywords = "High-temperature thermo-couples, In-pile instrumentation",

author = "Rempe, \{Joy L.\} and Knudson, \{Darrell L.\} and Condie, \{Keith G.\} and Crepeau, \{John C.\} and Daw, \{Joshua E.\}",

year = "2009",

doi = "10.13182/NT09-14",

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T1 - Options extending the applicability of high-temperature irradiation-resistant thermocouples

AU - Rempe, Joy L.

AU - Knudson, Darrell L.

AU - Condie, Keith G.

AU - Crepeau, John C.

AU - Daw, Joshua E.

PY - 2009

Y1 - 2009

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AB - Several options have been identified that could further enhance the reliability and extend the applicability ofigh-emperature irradiation-resistant the rmoço uples (HTIR-TCs) developed by the Idaho National Laboratory (INL) for in-pile testing, allowing their use in temperature applications as high as 1800°C. The INL and the University of Idaho (UI) investigated these options with the ultimate objective of providing recommendations for alternate thermocouple designs that are optimizedfor various applications. This paper reports results from INL/UI investigations. Results are reported from tests completed to evaluate the ductility, resolution, transient response, and stability of thermocouples made from specially formulated alloys of molybdenum and niobium, not considered in initial HTIR-TC development. In addition, this paper reports insights gained by comparing the peiformance of HTIR-TCs fabricated with various heat treatments and alternate geometries.

KW - High-temperature thermo-couples

KW - In-pile instrumentation

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M3 - Article

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VL - 167

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JO - Nuclear Technology

JF - Nuclear Technology

IS - 1

ER -

Options extending the applicability of high-temperature irradiation-resistant thermocouples

Abstract

Keywords

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