Component with a ceramic base body having a conduit and a fastening element and method

Patent metadata

Field	Value
Publication number	US-10679778-B2
Application number	US-201615552193-A
Country	US
Kind code	B2
Filing date	Feb 19, 2016
Priority date	Feb 20, 2015
Publication date	Jun 9, 2020
Grant date	Jun 9, 2020

Abstract

One aspect relates to a component comprising
i. a base body having a first component surface and a further component surface, the base body comprising a ceramic at least to an extent of 50 wt %, based on the total weight of the base body; ii. at least one electrical conduction element, the at least one electrical conduction element comprising a metal at least to an extent of 51 wt %, based on the electrical conduction element, and the at least one electrical conduction element passing through the entire base body from the first component surface to the further component surface; iii. at least one fastening element having a contact area, the at least one fastening element comprising a metal at least to an extent of 51 wt %, based on the fastening element, and the fastening element being surrounded at least in part by the base body.

First claim

The invention claimed is:

1. A component comprising:
a base body having a first component surface and a further component surface, the base body comprising a ceramic at least to an extent of 50 weight %, based on the total weight of the base body, wherein the base body comprises a recess;
at least one electrical conduction element, the at least one electrical conduction element comprising a metal at least to an extent of 51 weight %, based on the electrical conduction element, and the at least one electrical conduction element passing through the entire base body from the first component surface to the further component surface;
and at least one fastening element having a contact area, the at least one fastening element comprising a metal at least to an extent of 51 weight %, based on the total weight of the fastening element, the at least one fastening element further comprising at least one component selected from a group comprising ceramic, cermet, and polymer;
wherein the fastening element is located within the recess of the base body such that it is surrounded at least in part by the base body and such that the contact area does not extend beyond any surface of the base body;
and wherein at least 50% of the surface of the at least one fastening element is surrounded by the base body.

2. The component of claim 1 , wherein the fastening element is of annular design.

3. The component of claim 1 , wherein the fastening element does not form a connection through the base body from the first component surface to the further component surface.

4. The component of claim 1 , wherein the base body is materially bonded to the at least one electrical conduction element and the at least one fastening element.

5. The component of claim 1 , wherein the ceramic of the base body is selected from the group consisting of aluminum oxide (Al2O3), zirconium dioxide (ZrO2), a zirconium oxide containing an aluminum oxide (ATZ), an aluminum oxide containing a zirconium oxide (ZTA), a zirconium oxide containing an yttrium (Y-TZP), aluminum nitride (AlN), titanium nitride (TiN), magnesium oxide (MgO), a piezoceramic, barium(Zr, Ti) oxide, barium(Ce, Ti) oxide, and sodium potassium niobate, or a mixture of at least two hereof.

6. The component of claim 1 , wherein the metal of the fastening element and/or of the electrical conduction element is selected from the group consisting of palladium (Pd), platinum (Pt), gold (Au), iron (Fe), stainless steel (AISI 304, AISI 316 L), iridium (Ir), niobium (Nb), molybdenum (Mo), tungsten (W), titanium (Ti), cobalt (Co), chromium (Cr), a cobalt-chromium alloy, tantalum (Ta), and zirconium (Zr), or a mixture of at least two hereof.

7. The component of claim 1 , wherein the metal content of the fastening element is greater than the metal content of the electrical conduction element.

8. The component of claim 1 , wherein the metal content of the electrical conduction element is greater than the metal content of the fastening element.

9. The component of claim 1 , wherein at least part of one of the component surfaces is biocompatible.

10. A device comprising:
a housing that separates an inner region from an outer region, at least in part, comprising:
a housing wall having a first housing surface facing the inner region, and a further housing surface facing the outer region of the housing;
at least one recess in the housing wall; and

the component of claim 1 .

11. The device of claim 10 , wherein at least a part of the component that faces the outer region, and at least the part of the housing surface that faces the outer region, are biocompatible.

12. The device of claim 10 , wherein the housing wall comprises at least 30 weight % of titanium, based on the total weight of the housing.

13. A device comprising the component of claim 1 , wherein the device comprises at least one housing having at least one recess and the component of claim 1 , the component being connected to the housing via the at least one fastening element, and the component producing at least one electrical connection between at least one inner region of the housing and at least one outer region.

14. A component comprising:
a base body having a first component surface and a further component surface, the base body comprising a ceramic at least to an extent of 50 weight %, based on the total weight of the base body, wherein the base body comprises a recess;
at least one electrical conduction element, the at least one electrical conduction element comprising a metal at least to an extent of 51 weight %, based on the electrical conduction element,
and the at least one electrical conduction element passing through the entire base body from the first component surface to the further component surface;
and at least one fastening element having a contact area, the at least one fastening element comprising a metal at least to an extent of 51 weight %, based on the total weight of the fastening element,
the at least one fastening element further comprising at least one component selected from a group comprising ceramic, cermet, and polymer;
wherein the fastening element is located within the recess of the base body such that it is surrounded at least in part by the base body and such that the contact area is flush with a surface transverse to the first component surface and a further component surface of the base body.

Assignees

• Heraeus Deutschland Gmbh & Co Kg

Inventors

• Troetzschel Jens
• Hausch Ulrich

Classifications

• H01B17/305 Primary

  by embedding in glass or ceramic material · CPC title

• C22C33/0228

  comprising other non-metallic compounds or more than 5% of graphite · CPC title

• A61N1/3754 Primary

  Feedthroughs · CPC title

• C22C32/0021

  Matrix based on noble metals, Cu or alloys thereof · CPC title

• C22C1/1036

  starting from a melt · CPC title