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Entry  Friday, May 22, 2015, 11:44, Laura Lambert, Empty, , TARGET BOAT, In progress, Sintering TaC coating on Ta target boat 
    Reply  Monday, May 25, 2015, 17:08, John Wong, Empty, 40282-5, TARGET BOAT, In progress, Sintering TaC coating on Ta target boat 
       Reply  Tuesday, May 26, 2015, 13:05, Laura Lambert, Empty, 40282-5, TARGET BOAT, Done, Sintering TaC coating on Ta target boat target_boat_-_may_22.jpg
Message ID: 194     Entry time: Friday, May 22, 2015, 11:44     Reply to this: 195
Author: Laura Lambert 
Target Material: Empty 
Target Oven W.O#:  
Source: TARGET BOAT 
Status: In progress 
Subject: Sintering TaC coating on Ta target boat 

 Friday, May 22, 2015, 11:43

A target boat was sprayed with TaC coating and let dry yesterday.

The target boat is wrapped with 3-layers of Ta-heat shield.

The boat was installed in EVAP2, chamber is currently being pumped down.

 Friday, May 22, 2015, 14:22

HS water valves opened, no leaks detected.

IGP1 = 2.4e-6 Torr.

Tapping up manually...

 Friday, May 22, 2015, 14:33

Tapped up to 20A.

Vacuum jumped up to 7e-6 Torr.

Backed off to 5A before vacuum started to drop again.

IGP1 = 5e-6 Torr.

Tapping up manually again...just more slowly...

 Friday, May 22, 2015, 15:31

Tapped up to 12A, unable to tap up very fast due to volatile content in coating.

IGP1 = 3.6e-6 Torr.

Initiating auto-ramp at 0.1A/min with a max current of 580A.

 Monday, May 25, 2015, 09:03

IGP1 = 3e-7 Torr.

TGHT = 397.5A, 6.43V

Increasing ramping rate to 1.0A/min.

 

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