Tuesday, April 05, 2016, 10:58

UO2/C green was prepared March 31, 2016.

The cast peeled off the glass nicely April 1, 2016 and finished drying over the weekend. [see attached picture]

Some materials were stuck on the WC jar wall and balls, consistent with every time.

Initial UO2 powder used = 50.47g (Inventory R-00835A, UO2 + bottle = 168.33g before use)

Graphite powder used = 10.05g

Green cast dried UO2/C + organic mass = 59.50g 

The green was rolled up and wrapped in a piece of graphite sheet.

The Ta-target boat was wrapped with 3-layers of heat shield and installed in evap1 yesterday.

Chamber has been pumped down overnight, currently at IG1 = 3.7e-6 Torr.

Manually stepping up to 35A...

Target boat will be ramped up to 520A at the rate of 0.1A/min.

Vacuum limit stop at 5.0e-5 Torr, backing off at 6.0e-5 Torr.

Tuesday, April 05, 2016, 15:04

Waited ~4hrs, vacuum stable.

IG1 = 8.5e-6 Torr.

Initiating auto-ramp.

 Friday, April 15, 2016, 13:50

IG1 = 3.2e-6 Torr

TGHT = 520A, 5.15V

TGHT remained at max setpoints for ~10hrs

Carbonization process is complete.

Initiating auto-cool at 2.0A/min.

 Monday, April 18, 2016, 11:08

vented in argon and removed from evap1.

stored in glove box.

will measure flakes produced tomorrow...

 Tuesday, April 19, 2016, 15:32

UC2 flakes produced = 45.99g