Back to results
US 11,724,415 B2Granted
Method for producing ceramic sintered body, and method and device for producing ceramic molded body
AssigneesJapan Fine Ceramics Center, Noritake Co., Limited, Toto Ltd., NGK Insulators, Ltd., Ngk Spark Plug Co., Ltd.
InventorsTeiichi Kimura, Satoshi Suehiro
Life of this patent
Estimating the term…
Abstract
The present invention is a sintering method of a ceramic for sintering characterized by forming a layer containing a carbon powder on a surface of an article consisting of a ceramic for sintering, and then irradiating with laser a surface of the carbon powder-containing layer of a lamination obtained.
Claims14
A method for sintering a ceramic, the method comprising:
- forming a layer comprising a carbon powder on a surface of a ceramic article consisting of a non-sintered ceramic to thereby prepare a carbon powder-containing laminated layer, and
- irradiating with a laser a surface of the carbon powder-containing laminated layer to sinter the non-sintered ceramic located under an irradiated area of the carbon powder-containing laminated layer,
- wherein the carbon powder in the carbon powder-containing laminated layer at an irradiated part is removed after irradiating, and
- wherein the carbon powder is of graphite, and a thickness of the carbon powder-containing laminated layer is in a range from 100 nm to 10 μm.
1 more element
A method for producing a ceramic article having a sintered ceramic part, the method comprising:
- forming a layer comprising a carbon powder on a surface of a non-sintered ceramic part comprising a non-sintered ceramic to thereby prepare a carbon powder-containing laminated layer over the non-sintered ceramic part, and
- irradiating with a laser a surface of the carbon powder-containing laminated layer to sinter a non-sintered ceramic containing part that is located under an irradiated part of the carbon-powder containing laminated layer to thereby form the ceramic article having the sintered ceramic part,
- wherein the carbon powder in the carbon powder-containing laminated layer at an irradiated part is removed after irradiating, and
- wherein the carbon powder is of graphite, and a thickness of the carbon powder-containing laminated layer is in a range from 100 nm to 10 μm.
1 more element
A method for producing a ceramic article having a three-dimensional sintered ceramic part, the method comprising:
- preparing a first non-sintered ceramic part comprising a non-sintered ceramic,
- forming a layer comprising a carbon powder on a surface of the first non-sintered ceramic part to thereby prepare a first carbon powder-containing laminated layer over the first non-sintered ceramic part,
- irradiating with a laser a surface of the first carbon powder-containing laminated layer to sinter the non-sintered ceramic of the first non-sintered ceramic part located under an irradiated part to form a first sintered part,
- forming a second non-sintered ceramic part comprising a non-sintered ceramic on the first sintered part,
- forming a layer comprising a carbon powder on a surface of the second non-sintered ceramic part to thereby prepare a second carbon powder-containing laminated layer over the second non-sintered ceramic part, and
- irradiating with a laser a surface of the second carbon powder-containing laminated layer to sinter the non-sintered ceramic of the second non-sintered ceramic part located under an irradiated part to thereby form a second sintered ceramic part that is integrated with the first sintered ceramic part,
- wherein the carbon powder in the first carbon powder-containing laminated layer or the second carbon powder-containing laminated layer at an irradiated part is removed after irradiating, and
- wherein the carbon powder is of graphite, and a thickness of the first carbon powder-containing laminated layer or the second carbon powder-containing laminated layer is in a range from 100 nm to 10 μm.
5 more elements
Dependencies are inferred from the claim text.