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Thursday, December 07, 2017, 10:03, Laura Lambert, Endcaps, , TARGET BOAT, In progress, Sintering TaC coating on endcaps and springs

Message ID: 395 Entry time: Thursday, December 07, 2017, 10:03 Reply to this: 396

Author:	Laura Lambert
Target Material:	Endcaps
Target Oven W.O#:
Source:	TARGET BOAT
Status:	In progress
Subject:	Sintering TaC coating on endcaps and springs

Thursday, December 07, 2017, 09:57

Each endcap is wrapped in a separate piece of graphite foil and placed in a target boat.

There are also 4 coated springs, 2 on each side of the stack of endcaps.

The boat is wrapped with 3-layers of Ta heatshields.

Chamber pumped down overnight.

OMEGA slope = 0.98

HS water valves opened, no leaks detected.

IGP1 = 5.9e-7 Torr

IGP2 = 4.0e-7 Torr

Tapping up manually.

Final desired temperature = 1800C