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Entry  Thursday, April 05, 2012, 16:40, Nikita Bernier, BeO, Target boat #2, , Done, Sintering BeO pellets #3 
    Reply  Tuesday, May 22, 2012, 16:45, Nikita Bernier, BeO, Target boat #2, , Done, Sintering BeO pellets #3 
       Reply  Wednesday, May 23, 2012, 17:45, John Wong, BeO, Target boat #2, , Done, Sintering BeO pellets #3 past_5_hrs.JPGpast_21_hrs.pngpower_lost_2012-05-27_12_0630hr.pngTGHT_600A.pngTGHT@600A_past_12hr.JPG
          Reply  Tuesday, May 29, 2012, 15:43, Nikita Bernier, BeO, Target boat #2, , Failed, Sintering BeO pellets #3 
Message ID: 26     Entry time: Tuesday, May 22, 2012, 16:45     In reply to: 16     Reply to this: 27
Author: Nikita Bernier 
Target Material: BeO 
Target Oven W.O#: Target boat #2 
Source:  
Status: Done 
Subject: Sintering BeO pellets #3 

Nikita Bernier wrote:

Thursday, April 05, 2012, 16:31

Target boat contains 6 BeO pellets :

Sample,   Mass (g),   Thickness (mm),   Density (g/cm3)

1   1.2842,    5.406,        1.4647
2   1.2619,    5.150,        1.5108
3   1.2886,    5.316,        1.4946
4   1.2858,    5.310,        1.4931

5   1.3382,    5.520,        1.4948
6   1.3916,    5.650,        1.5187

 

Samples are made of BeO powder with 30% PVB which was treated at 400 RPM for 26 minutes. A ratio of 1:0.1 of mineral oil was added before another high speed treatment for 10 minutes. The powder was then pressed into pellets.

Pellets are loaded on a target boat coated/sintered with TaC. The target boat is wrapped with a Ta foil that is 0.002 inches thick.

**** Sintering is postponed until the situation with the ventilation in the lab06 is cleared. ****

 

 Tuesday, May 22, 2012, 16:44

Target chamber is currently being pumped down. Leak check will be done tomorrow by turning on the cooling water for the heat shield.

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