ISSN:
1572-9567
Keywords:
electrical conductors
;
electrical resistivity
;
hemispherical total emissivity
;
high temperatures
;
normal spectral emissivity
;
refractory metals
;
specific heat
;
tantalum
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract A subsecond pulse heating method was applied to measure the specific heat capacity, electrical resistivity, total hemispherical emissivity, and normal spectral emissivity of 99.9% pure tantalum in the form of 2-mm-diameter wire. W/Re thermocouple thermometry was applied from 300 to 2300 K, with emissivity measurements above 1300 K involving pyrometric measurements. The maximum uncertainties in the specific heat capacity and electrical resistivity were less than 3 and 1 % respectively. The uncertainty of emissivity measurements was estimated as ±5%. The results are compared with literature values.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1022659005050
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