John Wong wrote:

Tuesday, November 15, 2016, 16:48 Three samples were prepared  (see my logbook#1 page 3, preparing for carbonization). One layer of Ta foil was used to wrap around the target boat.  Chamber is currently being pumped down  Wednesday, November 16, 2016, 11:04 Ramping up TGHT at 2A/min, set at 350A. Desired temperature, ~1530C (similar heating condition as raw npSiC heat treatment, elog ID335)  Thursday, November 17, 2016, 10:09 TGHT reached to 350A/5.80V, stayed for over 20 hours.  Temp measured at 1276 C (Mikon) and 1270 (Omega), vac at 6.07e-7 Torr.  Stepping up TGHT to reach the desired temp.

 Thursday, November 17, 2016, 11:13

TGHT = 400A, 6.73V

IGP1 = 8.2e-7 Torr

OMEGA = 1385C

MIKRON = 1389C

Tapping up manually to 1500C or a max setpoint of 450A

Thursday, November 17, 2016, 11:56

TGHT = 450A, 7.85V

IGP1 = 1.7e-6 Torr

OMEGA = 1502C

MIKRON = 1510C

 Friday, November 18, 2016, 10:08

IGP1 = 5.3e-7 Torr

TGHT = 450A, 7.9V

OMEGA = 1510C

MIKRON = 1515C

Evap2 has remained at max setpoints for 23hrs.

Initiating auto-cool at 2.0A/min