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Title: Very high temperature measurements: Applications to nuclear reactor safety tests; Mesures des tres hautes temperatures: Applications a des essais de surete des reacteurs nucleaires (in English; French)

This PhD dissertation focuses on the improvement of very high temperature thermometry (1100 deg. C to 2480 deg. C), with special emphasis on the application to the field of nuclear reactor safety and severe accident research. Two main projects were undertaken to achieve this objective: - The development, testing and transposition of high-temperature fixed point (HTFP) metal-carbon eutectic cells, from metrology laboratory precision (±0.001 deg. C) to applied research with a reasonable degradation of uncertainties (±3-5 deg. C). - The corrosion study and metallurgical characterization of Type-C thermocouple (service temp. 2300 deg. C) prospective sheath material was undertaken to extend the survivability of TCs used for molten metallic/oxide corium thermometry (below 2000 deg. C)
Authors:
Publication Date:
OSTI Identifier:
22403720
Report Number(s):
FRCEA-TH--6122
TRN: US15V0001109477
Resource Type:
Thesis/Dissertation
Resource Relation:
Other Information: Country of input: France; 145 refs.; Available from the INIS Liaison Officer for France, see the 'INIS contacts' section of the INIS website for current contact and E-mail addresses: http://www.iaea.org/inis/Contacts/; Degree of Doctor of Philosophy, subject: Nuclear Engineering
Research Org:
Department of Mechanical Engineering, University of Idaho, Idaho Falls, Idaho, 709 S Deakin St, Moscow, ID 83844 (United States); CEA, DEN-DTN (France)
Country of Publication:
United States
Language:
English; French
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; ACCIDENTS; CORIUM; CORROSION; MICROSTRUCTURE; RADIATION PROTECTION; REACTORS; TEMPERATURE RANGE 1000-4000 K; THERMOCOUPLES