The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 08, 2019

Filed:

Aug. 19, 2015
Applicant:

Endress + Hauser Gmbh + Co. KG, Maulburg, DE;

Inventors:

Ulfert Drewes, Mullheim, DE;

Nils Ponath, Lorrach, DE;

Andreas Rossberg, Bad Sackingen, DE;

Anh Tuan Tham, Berlin, DE;

Assignee:

ENDRESS+HAUSER SE+CO.KG, Maulburg, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 31/02 (2006.01); C04B 37/00 (2006.01); B23K 35/32 (2006.01); C23C 14/04 (2006.01); C23C 14/18 (2006.01); G01L 9/00 (2006.01); B23K 103/00 (2006.01);
U.S. Cl.
CPC ...
C04B 37/006 (2013.01); B23K 35/32 (2013.01); C23C 14/042 (2013.01); C23C 14/185 (2013.01); G01L 9/0048 (2013.01); B23K 2103/52 (2018.08); C04B 2235/6581 (2013.01); C04B 2237/122 (2013.01); C04B 2237/127 (2013.01); C04B 2237/343 (2013.01); C04B 2237/592 (2013.01); C04B 2237/60 (2013.01); C04B 2237/704 (2013.01); C04B 2237/708 (2013.01); C04B 2237/72 (2013.01);
Abstract

A method for producing a connection between two surfaces or surface sections of two ceramic parts comprises: provision of a first ceramic part and of a second ceramic part; provision of an active brazing solder material on at least one surface section of at least one of the ceramic parts; and heating the active brazing solder in a vacuum brazing process. The whole active brazing solder material is provided for connecting the first and the second ceramic part by a sputtering method, wherein at least one surface section of at least one of the ceramic parts, preferably of the two ceramic parts, is layered with a layer sequence of individual components of the active brazing solder material, wherein the average strength of the layers of an individual component of the active brazing solder is no more than 0.5%, in particular not more than 0.2%, preferably not more than 0.1% and especially preferably not more than 0.05% of the strength of the joining region.


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