Silicon Nitride · Product form
Silicon Nitride 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 1
Companies that manufacture this form. Mill direct means longer lead times and mill minimums, with full melt traceability.
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Ortech Advanced Ceramics Verified
Sintered and hot pressed silicon nitride components: bearing balls and rollers, nozzles and semiconductor wafer handling parts.
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Production methods
The same form, purchased as tolling on your own material.
Pressing and Sintering 1
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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Ortech Advanced Ceramics Verified
Isostatic pressing, dry pressing and injection moulding. Sintered SSN reaches 70 to 80 percent of theoretical density; hot pressed HPSN gives the highest strength.
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