High-Speed Electrical ( Subsecond ) Measurement of Heat Capacity , Resistivity , and Thermal Radiation Properties of Tungsten in the Range 2000 to 3600 K *

Content Provider	Semantic Scholar
Author	Cezairliyan, Ared Mcclure
Copyright Year	2010
Abstract	Measureme nts of heat capacity, e lec trical res istivit y, he mi s pherica l tota l emittan ce, a nd norm a l s pec tral e mittance of tungsten a bove 2000 K by a pulse heatin g techniq ue a re desc ribed. Durat ion of a n in d ividu a l expe rim ent , in which the spec im en is heated from roo m te mperature to nea r its melting point , is less than one second. Te m pe rature measure me nts a re made with a photoelec tri c pyromete r. Experime nta l q uantities a re record ed with a d igita l da ta acq uis ition sys te m, which has a fu ll ·scale s ignal resolution of one part in 8000. Time resolution of the entire system is 0.4 ms. Results on the above prope rti es of tun gs ten in th e range 2000 to 3600 K a re report ed and are compared with those in th e lite ra ture. E stim ated inaccuracy of meas ured properties in the above te mperature ra nge is: 2 to 3 pe rcent for heat capac ity , 1 percent for e lectri cal resis ti vit y , 3 pe rcent for hemisphe ri ca l total and no rm a l spectral em ittances.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://nvlpubs.nist.gov/nistpubs/jres/75A/jresv75An4p283_A1b.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article