Method for sintering metals, non-oxide ceramics and other oxidation-sensitive materials
AssigneeForschungszentrum Juelich GmbH
InventorsApurv Dash, Jesus Gonzalez, Robert Vassen, Olivier Guillon
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Abstract
A method for sintering metallic and/or non-oxide components includes completely encapsulating, in a metal halide salt, a green body comprising at least one metallic and/or non-oxide powder, and compressing the encapsulated green body so as to be gastight. The method further includes heating, together with a metal halide salt in the presence of oxygen up to sintering temperatures, the compressed, encapsulated green body. The method additionally includes at least partially dissolving, after cooling, the metal halide salt in a liquid so that the sintered component can be removed.
Claims20
A method for sintering metallic and/or non-oxide ceramic components, the method comprising:
- completely encapsulating, in a metal halide salt, a green body comprising at least one metallic and/or non-oxide ceramic powder;
- after the encapsulating the green body in the metal halide salt, compressing the encapsulated green body so as to be gastight;
- adding the compressed, encapsulated green body directly to a molten metal halide salt bath:
- heating, in the presence of oxygen up to sintering temperatures, the compressed, encapsulated green body in the molten metal halide salt bath;
- and
- at least partially dissolving, after cooling, the metal halide salt in a liquid so that a sintered metallic and/or non-oxide ceramic component, formed from the green body, can be removed.
A method for sintering metallic and/or non-oxide ceramic components, the method comprising:
- completely encapsulating, in a metal halide salt, a green body comprising at least one metallic and/or non-oxide ceramic powder;
- after the encapsulating the green body in the metal halide salt, compressing the encapsulated green body so as to be gastight;
- arranging the compressed, encapsulated green body in a metal halide salt bath and then heating, in the presence of oxygen, the compressed, encapsulated green body together with the metal halide salt bath up to temperatures above the melting temperature of the metal halide salt and to sintering temperatures of the green body;
- and
- at least partially dissolving, after cooling, the metal halide salt in a liquid so that a sintered metallic and/or non-oxide ceramic component, formed from the green body, can be removed.
Dependencies are inferred from the claim text.