 Thursday, August 27, 2015, 16:37, John Wong, Empty, , HP-FEBIAD, Done, Sintering TaC coating container for SiC Target
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Laura Lambert wrote:
Tuesday, August 25, 2015, 11:50 |
 Thursday, January 14, 2016, 11:48, Laura Lambert, , , , Maintenance, Backing Pump Replaced
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Thursday, January 14, 2016, 11:47
Backing pump was making very loud high pitched noises during last couple processes in the evaporator.
Replaced with a new one this morning. |
Wednesday, February 24, 2016, 17:40, John Wong, Nb, , LP-SIS, Done, Bob/Tobi Nb samples 
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Thursday, February 25, 2016, 18:04 Wednesday, February 24, 2016, 17:29
Heat treatment of 2 bullet-shaped Nb samples in a LP-SIS container; it is just that we don't have a target boat.
Container is wrapped with 12" in total length. A strip of Nb foil is used as an underlayer for the samples to sit on top. |
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Friday, February 26, 2016, 16:02, John Wong, np-SiC, , TARGET BOAT, Done, Test#2: Carbonizing sol-gel TEOS + Pan nanofibers
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Friday, February 26, 2016, 15:44
5 samples were prepared at UBC MTRL using Sol-gel tetraethyl orthosilicate (TEOS) coated on electrospun polyacrylonitrate (PAN).
Each sample is sandwiched in between graphite foils. |
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Thursday, March 24, 2016, 12:05, John Wong, SiC, , TARGET BOAT, Done, Test#3: E-spin SiC with PAN
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Thursday, March 24, 2016, 11:37
SiC powder (<1um) [10%] was mixed with PAN solution [10%]. Solution was sonicated before e-spinning.
Fiber mat was binded to graphite foil and heat treated to 250C in air for 1 hour. |
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Thursday, April 07, 2016, 15:23, John Wong, SiC, , TARGET BOAT, Done, E-spun SiC/PAN thermal treatment
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Thursday, April 07, 2016, 15:18
E-spun SiC/PAN fiber mats were produced at UBC.
12%PAN solution; 50% SiC to weight of PAN. |
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Tuesday, May 03, 2016, 14:44, Laura Lambert, , , , , VACUUM PUMP REPLACEMENT
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Tuesday, May 03, 2016, 14:29
Turned vacuum pump on this morning, sounded awful: loud grinding bad noises.
Called vacuum group, will replace pump tomorrow morning. |
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Wednesday, May 11, 2016, 17:24, John Wong, np-SiC, , TARGET BOAT, Done, Temperature Treament of Nanofiber SiC/PAN
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Wednesday, May 11, 2016, 17:15
Nanofiber SiC (~50nm grain size)/PAN was prepared at UBC.
SiC 0.50g, DMF 9.0g, PAN 1.0g, tiny bit of SDS. |
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Thursday, May 19, 2016, 14:38, John Wong, SiC, , TARGET BOAT, In progress, Heat-treatment: Beta-SiC (1um) target discs
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The purpose of this experiment is to determined the limiting operating temperature for Beta-SiC. To do so, samples will be heated in sequence
to observe any volatile Si coated on the window. The coating is observed above 1400C for the conventional SiC (mixuture of alpha and beta) and this
coating leads to HV shorting problem. |
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Friday, May 20, 2016, 08:54, Laura Lambert, SiC, , TARGET BOAT, In progress, Heat-treatment: Beta-SiC (1um) target discs
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John Wong wrote:
The purpose of this experiment is to determined the limiting operating temperature for Beta-SiC. |
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Tuesday, May 24, 2016, 11:18, John Wong, SiC, , TARGET BOAT, In progress, Heat-treatment: Beta-SiC (1um) target discs
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Laura Lambert wrote:
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Friday, August 12, 2016, 11:08, Laura Lambert, , , , Maintenance, NEW PUMP FOR GLOVE BOX
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Wednesday, August 03, 2016, 16:16
Tues July 26th had some problems with the transfer chamber
Transfer chamber was not going below -20in pressure, when usually it will drop all the way to -30in |
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Thursday, August 18, 2016, 10:37, Anders Mjos, , , , Maintenance, New cooling lines for Heat Shield
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Dan made a set of new cooling lines for the Source Tray Heat Shield cooling yesterday. No joints on the lines. Use same VCR fitting 3/8 -> 1/4"
as for the Heat Shield. The old lines had worn threads on the male VCR nut. |
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Monday, October 24, 2016, 17:52, John Wong, np-SiC, , TARGET BOAT, Done, Thermo test of np-SiC raw powder
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Monday, October 24, 2016, 17:43
Two samples were prepared and loaded into the target boat with 1 layer of heat-shied as shown in the attachment#1.
Ingredients used: np-SiC and very small about of 5% PVA to hold the powder together. |
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Tuesday, November 15, 2016, 16:51, John Wong, np-SiC, , TARGET BOAT, In progress, Heat-treatment: Beta-SiC (1um) fiber mats - SAMPLE ID: A1
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Tuesday, November 15, 2016, 16:48
Three samples were prepared (see my logbook#1 page 3, preparing for carbonization).
One layer of Ta foil was used to wrap around the target boat. |
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Thursday, November 17, 2016, 11:15, Laura Lambert, np-SiC, , TARGET BOAT, In progress, Heat-treatment: Beta-SiC (1um) fiber mats - SAMPLE ID: A1
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John Wong wrote:
Tuesday, November 15, 2016, 16:48 |
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Friday, November 18, 2016, 17:28, John Wong, np-SiC, , TARGET BOAT, Done, Heat-treatment: Beta-SiC (1um) fiber mats - SAMPLE ID: A1
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Laura Lambert wrote:
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Tuesday, December 20, 2016, 15:04, Laura Lambert, , , , Maintenance, RETURN and SUPPLY valves CLOSED for xmas break
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Tuesday, December 20, 2016, 15:05
confirmed ~full tank of Ar for glove box --> ~1600psi |
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Friday, February 03, 2017, 14:18, Laura Lambert, Endcaps, , TARGET BOAT, Problems, Sintering TaC coating on Ta endcaps and springs
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Friday, February 03, 2017, 14:17
The endcaps are stacked together with a punched out disc of graphite foil placed in between each
endcap for separation so endcaps won't fuse together. |
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Monday, February 06, 2017, 11:17, Anders Mjos, , , , Problems resolved, IOC restart after power outagae
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| Dave Morris did a remote restart of the IOC after the outage. Turbo pump started. |
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