After doing the sintering process with the fiber specimens, it is realized that there is something wrong either in the firing program or in the material. So a TG (thermogravimetric) analysis had to be done.
I have received the results from the TG analysis and drew the graph according that. There I could obviously see that the firing curve I used was wrong. Because the decomposition of the inner core of the fiber overlaps with the debinding process of the outer layer (The layer which should be remained after sintering).
So I changed the firing curve very carefully considering some factors according to the TG analysis results. I will sinter some more samples very sooner to check the effects.
Monday, January 19, 2009
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