Measurement of thermophysical properties by a pulse-heating method: Thoriated tungsten in the range 1200 to 3600 K
Anno: 1994
Autori: Righini F., Spisiak J., Bussolino GC., Rosso A.
Affiliazione autori: CNR Istituto di Metrologia
Abstract: Thoriated tungsten (tungsten, 98%; thorium oxide, 2%) is a widely used electrode material for inert-gas are-welding. Data for the heat capacity, electrical resistivity, and hemispherical total emissivity of this material are reported for the temperature range 1200-3600 K. A subsecond pulse-heating technique was applied to rod specimens; radiance temperature was measured by high-speed pyrometry. Literature values of the temperature dependence of the normal spectral emissivity of tungsten were used to obtain true temperatures, using the melting point of thoriated tungsten as a calibration point. Reported uncertainties for the properties are 4% for heat capacity, 1.5% for electrical resistivity, and 7% for hemispherical total emissivity.
Giornale/Rivista: INTERNATIONAL JOURNAL OF THERMOPHYSICS
Volume: 15 (6) Da Pagina: 1311 A: 1322
Parole chiavi: electrical resistivity; heat capacity; hemisherical total emissivity; high temperature; tungstenDOI: 10.1007/BF01458839Citazioni: 9dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-04-28Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui