Ceramic+Processing

=Ceramic Processing=

Forming Techniques

 * ~ Method ||~ Process ||~ Applications ||~ Advantages ||~ Disadvantage ||
 * Pressing || Pressing from free flowing granules. || Flatware, dinnerware, insulators and spark plugs. || Fast throughput; 20 parts/min. || Density gradients, inhomogeneity, post machining ||
 * || Dry Pressing || Pressing from free flowing granules. ||  ||   ||   ||
 * || Cold Isostatic Pressing || Pressing from free flowing granules. ||  ||   ||   ||
 * Drain Casting || Solid-liquid separation driven by external forces to form a green body. ||  ||   || * Liquid flow affects the suspension microstructure and tends to orient nonspherical constituents.
 * stress gradient may also lead to nonuniform densities of the green body and cause mass segregation because of differences in particle size and density. ||
 * || Slip Casting || Low pressure (0.1-0.2 MPa) filtration driven by capillary forces ||  ||   || Slow process diffusion-limited with growing cake formation ||
 * || Pressure Casting || Medium pressure (< 4 MPa) ||  || Acceleration the consolidation of slip casting. ||   ||
 * || Centrifugal Casting ||  ||   ||   ||   ||
 * Injection Molding ||  || A feedstock of ceramic and polymer are introduced to a screw-driven injector then in to a mold. ||   || Makes small parts well || Problems with die filling and binder removal. Cannot produce thick parts. ||
 * Direct-casting ||  || Uses inherent properties in suspension to transform fluids to stiff gels. ||   ||   ||   ||
 * || Vibraforming || Vibration added to disrupt interparticle attraction causing free flow. ||  ||   ||   ||
 * || Enzyme-catalyzed || Enzyme triggers chemical release of salt that reduces double layer. ||  ||   ||   ||