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Entry  Tuesday, November 15, 2016, 16:51, John Wong, np-SiC, , TARGET BOAT, In progress, Heat-treatment: Beta-SiC (1um) fiber mats - SAMPLE ID: A1 
    Reply  Thursday, November 17, 2016, 11:15, Laura Lambert, np-SiC, , TARGET BOAT, In progress, Heat-treatment: Beta-SiC (1um) fiber mats - SAMPLE ID: A1 
       Reply  Friday, November 18, 2016, 17:28, John Wong, np-SiC, , TARGET BOAT, Done, Heat-treatment: Beta-SiC (1um) fiber mats - SAMPLE ID: A1 
Message ID: 336     Entry time: Tuesday, November 15, 2016, 16:51     Reply to this: 337
Author: John Wong 
Target Material: np-SiC 
Target Oven W.O#:  
Source: TARGET BOAT 
Status: In progress 
Subject: Heat-treatment: Beta-SiC (1um) fiber mats - SAMPLE ID: A1 

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. 

Chamber is currently being pumped down

 Wednesday, November 16, 2016, 11:04

Ramping up TGHT at 2A/min, set at 350A.

Desired temperature, ~1530C (similar heating condition as raw npSiC heat treatment, elog ID335)

 Thursday, November 17, 2016, 10:09

TGHT reached to 350A/5.80V, stayed for over 20 hours.  Temp measured at 1276 C (Mikon) and 1270 (Omega), vac at 6.07e-7 Torr. 

Stepping up TGHT to reach the desired temp.

 

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