Monday, November 23, 2015, 14:29
No heat shields.
Container empty.
Loaded into evap2 and currently pumping down.
Tuesday, November 24, 2015, 09:36
HS water valves opened this morning, no leaks detected.
IGP1 = 4.5e-7 Torr.
Changed slope of OMEGA IR to 0.98 for empty container.
Tapped up manually to 35A.
IGP1 = 4.7e-7 Torr.
Vacuum stable, initiating auto-ramp at 2.0A/min and 1.0A/min for the TGHT and TBHT respectively.
Final setpoints: TBHT = 230A, TGHT = 300A
Will tap up manually to 2000C
Tuesday, November 24, 2015, 14:00
TGHT = 300A, 3.75V
TBHT = 230A, 3.08V
IGP1 = 4.7e-7 Torr
No reading yet on the OMEGA.
Re-initiating auto-ramp to final setpoint TGHT = 450A
Wednesday, November 25, 2015, 09:11
IGP1 = 3.0e-7Torr.
TGHT = 450A, 6.37V
Tapping up manually to 2000C
Wednesday, November 25, 2015, 15:31
container was tapped up manually to 650A, slope/emissivity settings were checked.
ramped back down to 450A and tapped up manually while recording data up to 1800C [legs = 2000C]
once reached 1800C, tapped TBHT down manually to see relation of TBHT to temperature/ TGHT
remained at 1800C for ~1hr [while tapping down TBHT] before initiating auto-cool at 2.0A/min for the TGHT
see attachment for raw data.
Thursday, November 26, 2015, 10:08
Vented in air and took out this morning.
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