公开(公告)号：US11756732B2

公开(公告)日：2023-09-12

申请号：US17275815

申请日：2019-09-13

申请人： FOGALE SENSORS

发明人： Mathieu Valat ,  Jean-Pierre Ruffini

IPC分类号： H01G4/008 ,  B22F3/15 ,  B22F7/06

CPC分类号： H01G4/008 ,  B22F3/15 ,  B22F7/06 ,  B22F2301/25 ,  B22F2302/253

摘要： A method for the assembly of a metal part and a ceramic part, including the following steps:



supplying a solid ceramic part of the alumina type;
supplying a solid metal part, the metal being selected from platinum and tantalum, or an alloy including a majority of one of these metals;
depositing at least one layer, called interface layer, on at least one of the solid parts, the interface layer containing magnesium oxide;
bringing into contact the solid metal part and the solid ceramic part such that the interface layer is located between the solid parts; and
hot densification under pressure of the solid parts brought into contact, to create a close bond between the solid parts and form a spinel from the interface layer. An electrical device, such as a capacitive sensor having a sensitive part produced according to the present method, is also provided.