Slip casting

Question 1

What is the solids loading %?

Answer 1

~ 50%

~ facilitates faster casting rates

~ pH of deflocculated state can shift with solid loading

Question 2

What is the vol% porosity of gypsum molds? Effective pore sizes?

Answer 2

~ 40-50 vol%

~ effective pore sizes of 1-5μm

Question 3

What are the casting times?

Answer 3

~ around 1 minute for thin walled cast of partially coagulated porcelain slurry

~ an hour for dense thin-walled cast of sub-micron powder