A gelcasting method of making an internally graded article includes the steps of: preparing at least two slurries, each of the slurries including a different gelcastable 
powder suspended in a gelcasting solution, the slurries characterized by having comparable shrinkage upon 
drying and 
sintering thereof; 
casting the slurries into a mold having a selected shape, wherein relative proportions of the slurries is varied in at least one direction within the selected shape; gelling the slurries to form a 
solid gel while preserving the variation in relative proportions of the slurries; 
drying the gel to form a dried 
green body; and 
sintering the dry 
green body to form a 
solid object, at least one property thereof varying because of the variation in relative proportions of the starting slurries. A gelcasting method of making an internally graded article alternatively includes the steps of: preparing a 
slurry including a least two different phases suspended in a gelcasting solution, the phases characterized by having different 
settling characteristics; 
casting the 
slurry into a mold having a selected shape; allowing the 
slurry to stand for a sufficient period of time to permit desired gravitational 
fractionation in order to achieve a vertical compositional gradient in the molded slurry; gelling the slurry to form a 
solid gel while preserving the vertical compositional gradient in the molded slurry; 
drying the gel to form a dried 
green body; and 
sintering the dry green body to form a solid object, at least one property thereof varying along the vertical direction because of the compositional gradient in the molded slurry.