Wednesday, September 27, 2017, 18:05
3 samples from NS-npSiC pellets, pressured at 10T (see lab book pg 53)
3 samples from B3 pellets, 600MPa (see lab book pg 50)
Desired temperature = 1550C, est current = 450A
Thursday, September 28, 2017, 11:17
Vac at 8.8e-7 Torr.
Ramping TGHT up to 450A at 0.2A/min
Thursday, September 28, 2017, 17:54
Setup screen capture, see pg 53 for saved directory
Friday, September 29, 2017, 23:54
TGHT reached to 450A/7.9V, temp at 1510C.
Tapping up TGHT to 465/8.2V to reach 1550C
Pressure coming down from 1.6e-6 Torr.
See attachment 1 for the 20-hour plot
Sunday, October 01, 2017, 00:30
At around 20:00 on Sep 30, there was an increase of ~0.1 V which caused a rise in temp from 1550 to 1576C (see screen capture). Pressure increased slightly.
Tapped down TGHT to 445A/8.05V; temp maintained at 1550C.
Monday, October 02, 2017, 17:55
Cooling TGHT from 445A/8.07V, 1500oC to room temperature at 1A/min
Tuesday, October 03, 2017, 11:09
Target has been cooled for over 10 hours.
Venting chamber
|