I want the correct method to infiltrate the carbonate mixture into a ceramic hollow fibre membrane. Based on some of the publications stated that the carbonate mixture needs to be pre-heated at 600oC before the addition of membrane in a vertical furnace. Do I need to pre-heated the carbonate mixture, or can I just put the membrane in the carbonate mixture and heat at 600oC?
I also need to know how to put the mixture in a vertical furnace. How can a vertical furnace hold the sample?
I appreciate any help you can provide.
The method for infiltrating a carbonate mixture into a ceramic hollow fiber membrane will depend on the specific materials and application being used. However, here are some general guidelines:
Regarding your question about pre-heating the mixture, it is best to follow the instructions provided in the literature for the specific carbonate mixture being used. If the literature recommends pre-heating the mixture to 600°C before adding the membrane, it is likely that this is necessary to ensure proper infiltration and curing.
As for how to put the mixture in a vertical furnace, it will depend on the specific design of the furnace being used. Typically, a vertical furnace will have a sample holder or chamber where the samples can be placed. The sample holder may be designed to hold the samples vertically or horizontally, depending on the specific furnace design. It is important to follow the manufacturer's instructions for loading the samples into the furnace to ensure safe and proper operation.
Dear Febin Cherian John , thank you for your comprehensive answer. However, I still need further clarification about the infiltration:
-For step 2 does it mean that I need to infiltrate the membrane in the molten state of carbonate or the membrane is submerged once the carbonate mixture is cooled at room temperature?
-For step 3, is the infiltration conducted at high temperature (i.e. 600 oC)?
For step 2, the membrane should be submerged in the carbonate mixture at room temperature, after the mixture has been prepared and any required pre-heating has been completed. The carbonate mixture should not be in a molten state, as this would likely damage the membrane.
For step 3, the infiltration process typically takes place at room temperature or slightly above room temperature, and the temperature is not usually raised until the membrane has been fully infiltrated with the carbonate mixture. Once the infiltration is complete, the membrane is typically cured at a high temperature, such as 500-800°C, to ensure proper setting and bonding of the carbonate mixture.
I hope this helps.
- Badges
- Science topic