Dipartimento di Fisica - Università di Firenze
Istituto Nazionale di Fisica Nucleare – Sezione di Firenze
Low temperature thermal conductivity of Ti6Al4V alloy
Lara RISEGARI - Marco BARUCCI - Lapo LOLLI - Guglielmo VENTURA
Ti6Al4V is a candidate material for the realization of the
supports in the CUORE cryostat.
Some tie-rods sustain the different parts of the
experiment. One end of each rod is at low temperature
(10 mK, 50 mK or 700 mK) and the other one at room
temperature.
The value of the thermal conductivity of the material up
to room temperature is important. At the lowest
temperatures, the thermal conductivity has great
influence in establishing
the thermal load on the dilution refrigerator.
The thermal conductivity of the structural material
candidates for such tie-rods is usually known down to 4.2
K.
Here we present data of thermal conductivity for the
Ti6Al4V alloy below its superconductive transition
temperature (4.38 K).
25/07/2007
L. Risegari
Low temperature thermal conductivity of Ti6Al4V alloy
The graph shows the comparison with the thermal conductivity of the other candidate materials
for the thermal supports.
The Ti6Al4V alloy is a good candidate for the realization of the CUORE supports.
Of course mechanical data will play a decisive role in the choice of the material.