Logbooks Lab Maintenance Evaporator_1 Evaporator_2 Laser cutter Target Production Test-Stand RH-ISAC RH-Cyclotron RH-Meson Hall RH-Beamlines RH-ARIEL
  Evaporator_2, Page 32 of 34  Not logged in ELOG logo
Entry  Tuesday, July 03, 2018, 17:05, John Wong, np-SiC, Tube container, , Done, NanoSiC thermal treatment batch #3 data-retrieval.JPG
Tuesday, July 03, 2018, 17:02
49 discs/ 15.42g np-SiC fibrous discs loaded into the tube container
Heat treatment is similar to previous process, see elog#408/409.
Entry  Tuesday, September 11, 2018, 10:47, Aaron Schmidt, , , , , Evap 2 step discrepancy  PS_Check.docx
 Tuesday, September 11, 2018, 10:45:
TGHT: 53.4 A   TBHT: 57.75
Actual
Entry  Monday, November 19, 2018, 12:57, Marla Cervantes, Empty, 43630-7, , Done, TaC coating/sintering for graphite insert test TaC-coatingPlot.JPG
 Monday, November 19, 2018, 08:57
Tantalum tube was coated with TaC and wrapped with Ta heat-shield (3 layers)
Desired temp = 1900 C (expected TGHT ~445A/7.5V), TBHT will be set fixed at 230A (max).
Entry  Thursday, November 22, 2018, 10:19, Marla Cervantes, , 43630-7 , , Done, Graphite insert test #2 
 Thursday, November 22, 2018, 10:12
A previously sintered tantalum tube with 3 layers of shielding was loaded with a graphite insert.
The tube was loaded in evaporator 2 on Wednesday 21/11/2018 and pumped down
Entry  Thursday, December 20, 2018, 10:27, Marla Cervantes, , 43630-6, , Done, Tantalum tube heating 
Thursday, December 20, 2018, 10:24
A tantalum tube was loaded in evaporator 2 on Wednesday 19/Dec/2018.
It is going to be heated to 2000 C during 3 weeks 
Entry  Wednesday, January 16, 2019, 11:53, Marla Cervantes, TaC, 43630-2, , Done, TaC coating/sintering for graphite insert test 
 Tuesday, January 15, 2018, 17:30
Tantalum tube was coated with TaC and wrapped with Ta heat-shield (3 layers)
Desired temp = 1900 C (expected TGHT ~445A/7.5V), TBHT will be set fixed at 230A (max).
Entry  Wednesday, January 23, 2019, 13:06, Marla Cervantes, , 43630-2, , Done, Graphite insert test #3 
 Wednesday, January 23, 2019, 13:01
A previously coated tantalum tube with 3 layers of shielding (Details in e-log
426) was loaded with a graphite insert. 
Entry  Thursday, February 07, 2019, 15:20, Darwin Ortiz Rosales, Empty, 43630-1, , Done, TaC coating/sintering 
Thursday, February 07, 2019, 14:12
Tantalum tube coated with TaC and wrapped with 3 layers of Ta heat-shielding.
Desired temperature= 1900 Celsius (expected TGHT ~445A/7.5V)
Entry  Wednesday, February 13, 2019, 10:08, Darwin Ortiz Rosales, , 43630-1 , , Done, Graphite insert test 3b 
 Wednesday, February 13, 2019, 10:04
A previously coated tantalum tube with 3 layers of shielding (Details in e-log 426) was loaded with a graphite insert. 
Entry  Wednesday, March 13, 2019, 15:43, Marla Cervantes, , 43630-6, , Done, Graphite insert test #4 
 Wednesday, March 13, 2019, 15:41
An uncoated tantalum tube was loaded with a graphite insert (with conical caps).
3 tantalum foils were wrapped around the tantalum tube and a Ta cap was added.
Entry  Monday, April 01, 2019, 16:35, Darwin Ortiz Rosales, , 43630-4, , Done, TaC coating/graphite/sintering 
Monday, April 01, 2019, 16:35
Container was coated with TaC and a roll of graphite inserted inside the tube.   A couple of TaC coated Ta springs inside to keep graphite
pressed against walls of cylinder.
Entry  Wednesday, April 03, 2019, 16:59, Marla Cervantes, TaC, 43630-5, , Done, TaC coating/sintering for graphite insert test 
 Wednesday, April 03, 2019, 16:57
Tantalum tube was coated with TaC and wrapped with Ta heat-shield (3 layers)
Desired temp = 1900 C (expected TGHT ~445A/7.5V).
Entry  Sunday, April 07, 2019, 08:13, Marla Cervantes, , 43630-5, , Done, Graphite insert test #5 190407-GraphiteInsertTest.pdfV1.JPGV2.JPG20190415_170133.jpg
 Sunday, April 07, 2019, 08:10
A graphite insert (with conical caps) was loaded in tantalum tube previously coated with TaC,
and wrapped with 3 tantalum foils,
Entry  Tuesday, April 16, 2019, 13:40, Aaron Schmidt, , , , , Replace bottom insert on HS  
 Tuesday, April 16, 2019, 13:38: Replaced the bottom insert on the heat shield. 
Used small amount of isopropyl alcohol to wipe the inside if the HS out. 
Entry  Friday, May 10, 2019, 16:58, Marla Cervantes, , 43943-1, , Done, TaC coating/sintering for graphite insert test 
 Friday, May 10, 2019, 16:54
A tantalum tube was coated with TaC,and wrapped with three tantalum sheets,
the tube was set in the EVAP2 to sinter the TaC coating.
Entry  Tuesday, May 21, 2019, 14:34, Aaron Schmidt, , , , , HS swap to EVAP 2 flex line. 
 Tuesday, May 21, 2019, 14:33: Install flexible line evap 2 HS.
Entry  Tuesday, May 21, 2019, 18:01, Marla Cervantes, , 43943-1, , Done, Graphite foil test 
 Tuesday, May 21, 2019, 17:57
A tantalum tube previously coated with TaC and sintered was loaded with graphite foils.
The mass of the foils was 20.04 g.
Entry  Friday, May 24, 2019, 15:29, Marla Cervantes, , 43943-2, , Done, Graphite insert test 
Friday, May 24, 2019, 15:26
 A graphite insert with tantalum wires in its caps
was loaded in a tantalum tube, the system will be heated to 2000 C
Entry  Monday, June 17, 2019, 17:03, Marla Cervantes, , 43943-2, , Done, Graphite insert test 
Thursday, June 6, 2019, 16:43
A graphite insert with tantalum wires in its caps was loaded in a tantalum tube.

The system will be heated to 2000 C again (see 
Entry  Wednesday, August 28, 2019, 05:59, Marla Cervantes, , 44062-2-SK, , Done, Graphite insert test 
Wednesday, August 28, 2019, 06:00
A graphite insert (with conical caps) was loaded in tantalum tube 
the Ta tube was wrapped with 3 tantalum foils,
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