Monday, November 08, 2021, 09:35

Two groups of 4 caps wrapped in graphite with graphite discs in between. 

Two TaC coated springs at either end of the boat.

Target temperature = 1800 C

Expected around 430 TGHT

Good Vacuum 3e-03 Torr

Bad Vacuum 5e-02 Torr

Evap two was left pressuring down over weekend.

Monday, November 08, 2021, 09:35

Starting autoramp to 40 A at 1A/min

TGHT = 2.5e-07 Torr

Monday, November 08, 2021, 10:57

IGP1 = 8.5e -06 Torr and dropping

set autoramp to 50A at 1A/min

IGP1 1.0e-05 Torr and dropping

Set TGHT to autoramp to 90 A @ 1A/min and leave until pressure below 9e-06 Torr

Monday, November 08, 2021, 15:09

IGP1= 9.6e-06 Torr

Start autoramp to 400A at 2A/min 

Monday, November 08, 2021, 17:37

TGHT = 377 A, 6.1V

OMEGA= 1234 C

Monday, November 08, 2021, 17:58

OMEGA = 1292 (cannot trust )

400A, 6.3 V

1.4 e-05 Torr

 Autoramp @ 1A/min to 425A

Will heat to 425A and keep there for four hours

Monday, November 08, 2021, 22:02

TGHT=420A, 6.7V

IGP1= 7.0e-06 Torr

Start ramp down at -2A/min