Method for producing a material layer
AssigneeSiemens Aktiengesellschaft
InventorsJörg Buschbeck, Gotthard Rieger, Rolf Vollmer
Life of this patent
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Abstract
In a method for producing a material sheet, in particular a metallic material sheet, a green body containing solid-state particles is sintered at a sintering temperature by heating the green body during sintering at least partly using microwave energy in accordance with a defined temperature profile having a heating phase and an essentially isothermal hold phase. A temperature of the green body is ascertained contactlessly with a sensor, and a supply of heat energy is controlled as a function of the temperature of the green body. During the heating phase an average microwave power is supplied and during the hold phase another average microwave power is supplied which is less than the one average microwave power.
Claims11
A method for producing a material sheet, said method comprising:
- disposing a green body on a support in a chamber of a hybrid oven designed as a resonator for a microwave source;
- sintering the green body containing solid-state particles at a sintering temperature by heating the green body during sintering at least partly using microwave energy in accordance with a defined temperature profile having a heating phase and an essentially isothermal hold phase;
- ascertaining contactlessly with a sensor a temperature of the green body;
- controlling a supply of heat energy as a function of the temperature of the green body;
- and
- supplying during the heating phase an average microwave power and during the hold phase another average microwave power which is less than the average microwave power.
Dependencies are inferred from the claim text.