发明名称 |
MANUFACTURING OF A CERAMIC ARTICLE FROM A METAL PREFORM OR METAL MATRIX COMPOSITE PREFORM PROVIDED BY 3D-PRINTING OR 3D-WEAVING |
摘要 |
The present invention relates to a method of manufacturing a ceramic article (3) from a metal or metal matrix composite preform (1) provided by 3D-printing or by 3D-weaving. The preform (1) is placed in a heating chamber (2), and a predetermined time-temperature profile is applied in order to controllably react the preform (1) with a gas introduced into the heating chamber (2). The metal, the gas and the time-temperature profile are chosen so as to induce a metal-gas reaction resulting in at least a part of the preform (1) transforming into a ceramic. Preferred embodiments of the invention comprises a first oxidation stage involving a metal-gas reaction in order to form a supporting oxide layer (5) at the surface of the metal, followed by a second stage in which the heating chamber (2) is heated to a temperature above the melting point of the metal to increase the kinetics of the chemical reaction. The invention also relates to a number of advantageous uses of a ceramic article manufactured as described. |
申请公布号 |
EP3077348(A1) |
申请公布日期 |
2016.10.12 |
申请号 |
EP20130814457 |
申请日期 |
2013.12.04 |
申请人 |
EUROPEAN SPACE AGENCY |
发明人 |
JARVIS, David John;VOICE, Wayne Eric;ADKINS, Nicholas John Elsworth;HASSANIN, Hany Salamam Sayed Ali |
分类号 |
C04B35/01;B22F1/02;B22F3/105;B29C67/00;C04B35/547;C04B35/553;C04B35/56;C04B35/58;C04B35/65;C04B38/00 |
主分类号 |
C04B35/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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