Thursday, June 12, 2025, 12:33

A boat wrapped in 3 Ta heatshields

Sintering S1.1s, S2.1s, bare Ta x2 (S0.1s)

Vacuum IGP1 initial = 6.76 e-7 Torr

Target temperature on OMEGA= 1800-1900 C

OMEGA slope:= 0.990

Target time at max temperature = 4 hours

Final TGHT current= ~420A (adjustable)

 1A/min  to =400 A TGHT

Good vacuum = 5.0 e-04 Torr

Bad vacuum = 5.0E-02 Torr

 Friday, June 13, 2025, 08:53

Set final value (A) to 400A

Set current increments (A) to 1A/min

Friday, June 13, 2025, 14:48

Slight increases in pressure apparent in graph - small peaks appeared

Friday, June 13, 2025, 16:00

Heating ramp stalled around 1760 C and 402A, started manually increasing to 1785 C and 410A

Friday, June 13, 2025, 16:10

 Reached 1785 C and 410A

Friday, June 13, 2025, 20:12

OMEGA at 1785 C

Started rampdown @-2A/min