{
  "$type": "site.standard.document",
  "description": "A glass-metal feedthrough includes: an external conductor having a coefficient of expansion α, and having an opening formed therein; an internal conductor disposed in the opening, the internal conductor including iron and having a coefficient of expansion α, the external conductor and the internal…",
  "path": "/patents/1311611",
  "publishedAt": "2022-02-24T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01J61/366",
    "Schott AG"
  ],
  "textContent": "A glass-metal feedthrough includes: an external conductor having a coefficient of expansion α, and having an opening formed therein; an internal conductor disposed in the opening, the internal conductor including iron and having a coefficient of expansion α, the external conductor and the internal conductor being configured to not release nickel when in contact with a human or animal body or biological cells of a cell culture; and a glass material surrounding the internal conductor within the opening and having a coefficient of expansion α, the coefficient of expansion of the internal conductor αand the coefficient of expansion of the external conductor αare such that a joint pressure on the internal conductor of at least 30 MPa is generated in a temperature range of 20° C. to a glass transformation temperature of the glass material.",
  "title": "GLASS-METAL FEEDTHROUGH"
}