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.
Patent No.:
Date of Patent:
May. 11, 1976
Filed:
Jun. 12, 1975
Applicant:
Inventors:
John William Henney, Abingdon, EN;
James William Jones, Blewbury, EN;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01B / ; C01B / ;
U.S. Cl.
CPC ...
252500 ; 423349 ;
Abstract
An electrically conducting artefact is produced by heating a silicon nitride artefact to a temperature high enough to decompose part of the silicon nitride to silicon but not high enough to evaporate the silicon which is formed, the heating taking place either in an environment which is inert to silicon or in a carbon containing environment which reacts with the silicon formed to give silicon carbide. Such an artefact has electrical conductivity properties which may, for example, be retained after heating at about 600.degree.C in air for several hours.