Method of electroless depositing of gold onto superconducting particles
This patent describes a method of electroless deposition of gold from a solution onto ceramic oxide particles, comprising alkaline earth metal-copper oxide. It comprises: adding gold chloride to at lest one organic compound that is effective to act as solvent and optional reducing agent for the gold chloride, in a nonaqueous liquid environment non-reactive to subsequently added ceramic oxide particles, to provide a gold solution, mixing ceramic oxide particles comprising alkaline earth metal-copper oxide having superconducting properties with the gold solution, to provide a suspension of the ceramic oxide particles in the gold solution, optionally adding an organic compound that is effective to act as a reducing agent for gold chloride, heating the suspension so that a layer of gold metal, from approximately 2 Angstroms to 1,000 Angstroms thick, deposits on the ceramic oxide particles, separating the gold coated ceramic oxide particles, and removing organic constituents from the gold coated ceramic oxide particles; where, if the organic compound added does not act as a reducing agent, an organic compound reducing agent is added.
- Assignee:
- Westinghouse Electric Corp., Pittsburgh, PA (USA)
- Patent Number(s):
- US 49971944; A
- Application Number:
- PPN: US 7-313125
- OSTI ID:
- 5059794
- Resource Relation:
- Patent File Date: 21 Feb 1989
- Country of Publication:
- United States
- Language:
- English
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