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Tantalum Furnace

The tantalum furnace has a heater tube made from tantalum foil, and two radiation shields within the vacuum chamber. It is water cooled.

Heater power table

T
[K]
heater power
[W]
U(prim)
[V]
I(prim)
[A]
I(2nd)
[A]
T(wall)
[K]
cooling rate
[K/min]
1400273015217.84 x 70.4350
1300206013015.84 x 57 330
1200150011014.14 x 46 320
11001050 8812.54 x 37.5310
1000 730 7010.84 x 29.8303 > 50
900 480 58 9.04 x 23.3298 50
800 325 50 7.54 x 18.0293 30
700 195 291 17
600 120 290 10
500 74 289 4
450 53 289 3
400 38 4 x 4.7289 1.5

Temperature of the connections at 1400 K: 90-100 deg Celsius

The furnace must not be vented above 373 K. Cool down from 1400 K takes about 90 min, from 500 K still 60 min!

tantalofen1.jpg

TantalumFurnace.png

Sketch of tantalum furnace (not to scale)

Connection of Furnace:

FT_conn1.png FTconn2.png


Attachments:  FT_conn1.png  TantalumFurnace.png  FTconn2.png  tantalofen1.jpg  tantalofen2.jpg  tantalofen3.jpg 
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This page last changed on 13-Jun-2013 14:22:34 CEST by MarkusZolliker.