Determine a firing temperature from a pore size?

[hermtm2]

Determine a firing temperature from a pore size?

I did an experiment to find a density of Al2O3 filter (96% pure). By using Pycnometer, hydrostatic weighing method, and SEM images, I was able to find the density. However I have no idea to find the firing temp and reproducing method. When I asked my TA, he told me that Think about think about the particle and pore size. how can you control them during processing?.

Can you help me out?

Homework Statement

Q1) Address how would you determine the temperature used to fire your sample?
Q2) Address how would you reproduce a filter that has the same microstructure as your sample

Homework Equations

The Attempt at a Solution

 

[Valkarie]

A1) To determine the temperature used to fire your sample, you could use a thermocouple or thermocouple probe to measure the temperature of the sample during firing. Additionally, you could measure the temperatures of the furnace or kiln that is being used to fire the sample. A2) To reproduce a filter with the same microstructure as your sample, you would need to control the size and shape of the particles that make up the filter, as well as the pore size in the filter. This could be done by controlling the particle size distribution of the material that is used to make the filter, as well as controlling the time and temperature of the firing process. For example, if you wanted to increase the pore size, you could increase the firing temperature and/or extend the firing time. Conversely, if you wanted to decrease the pore size, you could decrease the firing temperature and/or reduce the firing time.