how to remove SiO2 layer from Si3N4 powders
how to remove SiO2 layer from Si3N4 powders
(OP)
Hi,
I want to remove SiO2 layer which occurs naturally on the Si3N4 powders. But I do not want to use HF because it is not safe. Is it possible to remove SiO2 by using any other acids/bases?
Any information is appreciated. Thanks for all.
I want to remove SiO2 layer which occurs naturally on the Si3N4 powders. But I do not want to use HF because it is not safe. Is it possible to remove SiO2 by using any other acids/bases?
Any information is appreciated. Thanks for all.





RE: how to remove SiO2 layer from Si3N4 powders
Work was then done using an electrolytic process and as I recall it used a Ca Salt. They were able to remove the SiO2 with very little damage to the substrate. I don't know how your substrate will stand up. I wasn't directly involved as this project was at the PHD level
Can you use something like a SS White abrasive blast system to clean your SiN4?
RE: how to remove SiO2 layer from Si3N4 powders
http://www.ticoating.com/a.html