Miniature iron-carbon eutectic point crucible for the calibration of thermometers
| Autor: | V. Žužek, Jovan Bojkovski |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
iron-carbon eutectic
Materials science melting point chemistry.chemical_element Crucible talilniki 02 engineering and technology 01 natural sciences Thermal expansion crucible Thermocouple 0202 electrical engineering electronic engineering information engineering Calibration tališče Graphite Electrical and Electronic Engineering Instrumentation Eutectic system temperatura Applied Mathematics 020208 electrical & electronic engineering 010401 analytical chemistry Metallurgy temperature Condensed Matter Physics calibration evtektik železo-ogljik 0104 chemical sciences Melt temperature chemistry udc:621.317 Carbon umerjanje |
| Zdroj: | Measurement, vol. 181, no. 109619, 2021. |
| ISSN: | 0263-2241 |
| Popis: | The article presents the design, construction and evaluation of a miniature graphite iron-carbon eutectic point crucible for the calibration of thermometers. These are either contact such as thermocouples or non-contact such as infrared thermometers. The double wall of the crucible protects its structure in case of cracks in graphite that can appear due to thermal expansion or eutectic adhesion. Such design proved robust – even after almost 100 melting realizations, the crucible does not show significant signs of damage. Performance of the crucible was confirmed with several realized plateaus at three different furnace setpoints. Results of these measurements agree with previously published findings. The measured melting point temperature was 1153.81 °C and the achieved expanded calibration uncertainty of a type R thermocouple was 0.2 °C. |
| Databáze: | OpenAIRE |
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