A multilayer ceramic structure is formed by building up a plurality of
layers by sequentially coating a substrate with a series of suspensions
comprising particles in a fluid medium. A composition of the sequential
layers are varied to produce a structure with the desired properties. The
thickness of the layers can be controlled by Theological properties of
the suspension and/or by the utilization of a gelling or coagulating
agent. An advantage of this method is that complete drying between the
subsequent coatings is not required.