Process modeling of gelcast Si3N4ceramics using multi gene genetic programming

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Abstract

The influence of solid loading, monomer content and ratio of monomer to cross linking agent on the flexural strength and the porosity Si3N4 ceramic sintered body were investigated. The high strength porous Silicon Nitride (Si3N4) ceramics were prepared using gelcasting by increasing the monomer content in the slurry and flexural strength of the ceramic composite increases as the solid loading increases and flexural strength decreases as the monomer content increases. The porosity of the ceramic composite decreases as the solid loading increases and porosity increases as the monomer content increases. Flexural strength and porosity were determined as objective functions and a mathematical model is generated using Multi Gene Genetic Programming (MGGP).

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