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Entry  Wednesday, July 23, 2014, 15:07, John Wong, Empty, 40282-3, LP-SIS, In progress, Sintering TaC coated target container  
    Reply  Monday, July 28, 2014, 10:52, Laura Lambert, Empty, 40282-3, LP-SIS, Done, Sintering TaC coated target container  
Message ID: 143     Entry time: Wednesday, July 23, 2014, 15:07     Reply to this: 144
Author: John Wong 
Target Material: Empty 
Target Oven W.O#: 40282-3 
Source: LP-SIS 
Status: In progress 
Subject: Sintering TaC coated target container  

Wednesday, July 23, 2014, 15:07

Target container is coated with TaC.  No Ta-heat shields are used.

TGHT will be ramped up to 580A at 0.2A/min.

TBHT will be ramped up to 230A at 0.2A/min.

Chamber is currently being pumped down

 Wednesday, July 23, 2014, 17:40

Vacuum came down to mid 10-6 Torr.

Stepped up TGHT and TBHT to 30A - IG1 @ 1.4e-5 Torr.

Initiated auto-ramping.

 Thursday, July 24, 2014, 17:19

TGHT and TBHT have reached to 100A, and vacuum is coming down to 1.4e-6 Torr.

Increase ramping rate, TGHT to 1A/min, TBHT 0.5A/min.

 Friday, July 25, 2014, 11:26

Target container temperature reaches ~1550C at 580A on TGHT and 230A TBHT, and it has been heated for ~10 hrs.

Auto-cooling initiated at 2A/min.

 

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