Thursday, November 22, 2018, 10:12
A previously sintered tantalum tube with 3 layers of shielding was loaded with a graphite insert.
The tube was loaded in evaporator 2 on Wednesday 21/11/2018 and pumped down
The graphite insert will be heated to 2000 C
current pressure IGP1 = 4.2e-7 Torr
TGHT manually tapped to 40 A
Autoramp set to 2 A/min on TGHT to 400 A aiming for 1800 C
Thursday, November 22, 2018, 17:13
TGHT 401.25 A, 6.79 V
Temperature 1780 C
IGP1 7.89e-7 Torr
Tapping manually to reach 1800 C, final current 407.2 A, 6.96 V
Friday, November 23, 2018, 17:13
Tapped manually to TGHT 469.0 A, 8.64 V
Temperature 2019 C
IGP1 2.68e-7 Torr
Thursday, November 29, 2018, 08:03
TGHT 469.0 A, 8.945 V
Temperature 2061 C
IGP1 2.12e-7 Torr
Tuesday, December 04, 2018, 07:53
TGHT 469.1 A, 8.814 V
Temperature 1983 C
IGP1 1.52e-7 Torr
Wednesday, December 05, 2018, 21:30
TGHT 469.1 A, 8.75 V
Temperature 1983 C
IGP1 1.22e-7 Torr
Thursday, December 06, 2018, 12:25
TGHT 468.9 A, 8.66 V
Temperature 1977 C
IGP1 1.42e-7 Torr
Friday, December 07, 2018, 17:59
TGHT 468.9 A, 8.80 V
Temperature 1977 C
IGP1 1.42e-7 Torr
Wednesday, December 12, 2018, 12:18
TGHT 469.2 A, 8.7 V
Temperature 1945 C
IGP1 1.10e-7 Torr
Thursday, December 13, 2018, 10:42
TGHT 469 A, 8.7 V
Temperature 1939 C
IGP1 1.04e-7 Torr
Ramping temperature down at -2 A/min
Friday, December 14, 2018, 10:42
TGHT 0.0 A, 0.051 V
IGP1 4.36e-8 Torr |