Method for preparing of ceramic shaped part, apparatus and use thereof
OwnerHåvard Sørheim, Arve Solheiminventors
Life of this patent
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Abstract
Method and apparatus for preparing of at least one ceramic shaped part. A cavity is provided between at least one external shape and at least one internal shape. A Si-containing powder composition is then provided in the cavity. The composition is then heated in a reactive gas atmosphere to obtain a reaction bounded ceramic shaped part. Use of the apparatus is also described.
Claims22
1-26. (canceled)
A method for preparing at least one ceramic mould part of reaction bonded silicon nitride, comprising:
- providing a cavity between at least one external mould and at least one internal mould;
- perforating at least one of the external and/or internal mould;
- placing a Si-containing powder composition in the cavity;
- and
- heating the Si-containing powder composition in a reactive gas atmosphere to a temperature at which a reaction bonded silicon nitride mould part is obtained.
Apparatus for preparing at least one ceramic mould part made of reaction bonded silicon nitride, the apparatus comprising:
- at least one cavity between at least one external mould and at least one internal mould, wherein at least one of the external or internal moulds are perforated;
- means for inserting a Si-containing powder composition;
- and
- means for heating in a reactive gas atmosphere.
A method of using of a cavity provided between at least one external mould and at least one internal mould, the method comprising:
- perforating at least one of the external or internal mould;
- providing a Si-containing powder composition in the cavity;
- and
- heating the powder composition in a reactive gas atmosphere to a temperature in which a ceramic mould part of reaction bonded silicon nitride is prepared.
Dependencies are inferred from the claim text.