Electrically conductive material

Patent · 07 September 1993

OSTI ID:5450429

Singh, J P; Bosak, A L; McPheeters, C C; Dees, D W

An electrically conductive material is described for use in solid oxide fuel cells, electrochemical sensors for combustion exhaust, and various other applications possesses increased fracture toughness over available materials, while affording the same electrical conductivity. One embodiment of the sintered electrically conductive material consists essentially of cubic ZrO[sub 2] as a matrix and 6-19 wt. % monoclinic ZrO[sub 2] formed from particles having an average size equal to or greater than about 0.23 microns. Another embodiment of the electrically conductive material consists essentially at cubic ZrO[sub 2] as a matrix and 10-30 wt. % partially stabilized zirconia (PSZ) formed from particles having an average size of approximately 3 microns. 8 figures.

• DOE Contract Number: W-31109-ENG-38
• Assignee: ARCH Development Corp., Chicago, IL (United States)
• Patent Number(s): A; US 5242873
• Application Number: PPN: US 7-182370
• OSTI ID: 5450429
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
300503* -- Fuel Cells-- Materials
Components
& Auxiliaries
36 MATERIALS SCIENCE
360200 -- Ceramics
Cermets
& Refractories
CHALCOGENIDES
CRYSTAL STRUCTURE
DIRECT ENERGY CONVERTERS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
FRACTURE PROPERTIES
FUEL CELLS
MATERIALS
MECHANICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SOLID ELECTROLYTE FUEL CELLS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES