 Tuesday, May 02, 2023, 14:20, John Wong, np-TiO2, , TARGET BOAT, In progress, Carbonization of np-TiO2 spun fibrous pellets/fibre mats 7x
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Tuesday, May 02, 2023, 14:03
Two np-TiO2 spun fibrous pellets and 1 batch of fibre mats were wrapped with graphite foils and loaded into a target boat.
Sample will be heated to 1875C, similar to the previous process, see e-log ID#605 (TGHT: 440A/7.6V). |
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Thursday, July 25, 2024, 15:46, Angelina Chen, np-Ta, , TARGET BOAT, In progress, Carbonization of Heat Stabilized np-Ta Fibres Disk (1st Attempt)
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Thursday, July 25, 2024, 15:18
Target container consists of two np-Ta fibres disk samples. Both disks are made from heat stabilized np-Ta fibres (150 C for 17 hours) and were
pressed at 8 tons / 300 MPa. |
 Friday, July 26, 2024, 10:05, John Wong, np-Ta, , TARGET BOAT, Done, Carbonization of Heat Stabilized np-Ta Fibres Disk (1st Attempt)
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Angelina Chen wrote:
Thursday, July 25, 2024, 15:18 |
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Monday, August 19, 2024, 13:17, John Wong, np-Ta, , TARGET BOAT, In progress, Carbonization of heat stabilized np-Ta fibres - 2nd Attempt
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Monday, August 19, 2024, 13:06
Target container consists of 2 samples, and both samples were heat stabilized at 150 C for 24 hours then pre-oxidized at 360 C for 4 hours:
1. PVP (7% wt/v) spun fibres 0.0569 g |
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Tuesday, January 19, 2016, 14:27, John Wong, np-SiC, targetboat (TaC coated), TARGET BOAT, Done, SiC Nanofiber Heat Treatment
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Tuesday, January 19, 2016, 14:19
SiC nanofiber was prepared at UBC Material Engineering Sci.
4 samples are loaded in a Ta target contained (sintered with TaC coating): |
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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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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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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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Thursday, February 09, 2017, 23:28, John Wong, np-SiC, , TARGET BOAT, Done, Thermotest: SiC-SiO2-Lys and SiC pellets
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Thursday, February 09, 2017, 23:26
There are two types of samples being test for thermal stability:
1. SiC-SiO2-Lys nanofiber mats |
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Saturday, March 11, 2017, 11:58, John Wong, np-SiC, , TARGET BOAT, Done, Thermo test B3 Pellets
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Friday, March 10, 2017, 17:29
Three B3 pellets are loaded into the container for thermo test.
(see lab book1 Pg 26, 28-30 for more detail about the materials) |
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Friday, March 31, 2017, 12:22, John Wong, np-SiC, , TARGET BOAT, In progress, Thermo test: B3 Pellets (13.3K-PSI)
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Friday, March 31, 2017, 12:21
Two compressed pellets loaded into the target boat and wrapped with Ta foil. (see lab book p32 for details).
Chamber is pumping down. |
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Thursday, April 20, 2017, 12:45, John Wong, np-SiC, , TARGET BOAT, In progress, Higher Temp Treament: B3-92Mpa pellets
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Thursday, April 20, 2017, 12:38
3 samples are loaded into the Ta boat and wrapped with heat shield (1 long piece, 3 rounds): 2x of B3-92Mpa pellets and 10% pure PAN pellet
as control. See lab book page 32 for more details. |
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Monday, July 10, 2017, 17:36, John Wong, np-SiC, , TARGET BOAT, Problems, Water Sensor Problem, TGHT Tripped. (np-SiC fibrous Pellet: Applied pressure vs Density)
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Monday, July 10, 2017, 17:28
Two np-SiC fibrous pellets with different applied pressure:
1) 200MPa, 2) 335 MPa (see logbook pg 36 for more details). |
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Wednesday, September 27, 2017, 18:06, John Wong, np-SiC, , TARGET BOAT, Done, NS-npSiC & B3 pellets heat treatments
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Wednesday, September 27, 2017, 18:05
3 samples from NS-npSiC pellets, pressured at 10T (see lab book pg 53)
3 samples from B3 pellets, 600MPa (see lab book pg 50) |
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Wednesday, October 04, 2017, 16:40, John Wong, np-SiC, , TARGET BOAT, Done, Thermal treatment cast-pellet npSiC/PAN - det. sintering effect
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Wednesday, October 04, 2017, 16:37
3 samples of npSiC/PAN cast-pellets, see lab book p. 57 for details.
Desired temperature 1550C, expected TGHT ~450A. |
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Monday, November 06, 2017, 18:25, John Wong, np-SiC, , TARGET BOAT, Done, Thermal treatment npSiC Horn vs Probe samples - P74
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Monday, November 06, 2017, 18:21
Samples of Horn and Probe - npSiC. see pg 74.
6 samples in total, to be heated to 1550C, about 450A. Set ramping rate at 0.2A/min. |
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Tuesday, May 01, 2018, 18:07, John Wong, np-SiC, Tube container, , Done, NanoSiC thermal treatment batch#1
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Tuesday, May 01, 2018, 18:06
21 fibrous discs of nanoSiC are loaded into a tube container (coated/Sintered with TaC).
Thermal treatment temperature at 1600C, TGHT is ~338A/5.5V, according to elog #407. |
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