Alumina · Product form
Alumina Ceramic Component
I have a ceramic part drawing. Who can press, sinter and diamond grind it to tolerance?
What it is
Machined or near-net ceramic part made to a drawing: radome, nose cone, seal face, bearing, nozzle or bracket. Almost always finished by diamond grinding after firing, because sintering shrinkage is too large to hold tolerance directly.
- Typical dimensions
- Made to the part; envelope limited by press and kiln size.
- Also known as
- ceramic part, radome, nose cone, seal face, custom ceramic
Suppliers
Grouped by what they actually are. A mill and a distributor answer different needs.
Mills and producers 4
Companies that manufacture this form. Mill direct means longer lead times and mill minimums, with full melt traceability.
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CeramTec North America Verified
Electrical feedthroughs, viewports and thermocouples built as sealed ceramic-to-metal assemblies.
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COI Ceramics Reported
Alumina and alumina-mullite matrix systems. This is alumina as a CMC matrix rather than as a monolithic technical ceramic, which is a different purchase from the rest of this page.
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CoorsTek Reportedsource
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Superior Technical Ceramics VerifiedAS9100
Alumina components made under one roof from powder formulation through pressing, sintering, machining and finishing.
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Production methods
The same form, purchased as tolling on your own material.
Pressing and Sintering 3
Compacting ceramic powder by uniaxial, isostatic or hot pressing, then firing below the melting point so particles bond and the body densifies. The part shrinks substantially during firing, which is why almost nothing comes out of a kiln at final dimension.
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CoorsTek Reportedsource
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Precision Ceramics USA Verified
Die pressing and isostatic pressing with green machining before sintering, which cuts the amount of diamond grinding needed after firing.
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Superior Technical Ceramics VerifiedAS9100
Pressing and sintering as part of a fully integrated production route.
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