In this case, meal was not stiff enough and the thermal expansion would be too great. The solution was Macor, exploiting its excellent machinability. Note the precisely located 2.0 mm diameter through holes, and the 1.0 mm thick web in the bottom of the deepest pocket. We CNC machined this with conventional tooling.
Ceramic Oxide Fabricators (Australia) | Industrial and Scientific Ceramics
Since 1971 we have been manufacturing and distributing high-tech ceramics for science and industry. Our products are used for abrasion, corrosion, and electrical resistance, laboratory ware, and ...