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GB2005649A - Electrodes - Google Patents

Electrodes

Info

Publication number
GB2005649A
GB2005649A GB7836851A GB7836851A GB2005649A GB 2005649 A GB2005649 A GB 2005649A GB 7836851 A GB7836851 A GB 7836851A GB 7836851 A GB7836851 A GB 7836851A GB 2005649 A GB2005649 A GB 2005649A
Authority
GB
United Kingdom
Prior art keywords
engines
electrodes
lanthanides
integers
virtue
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB7836851A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson Matthey PLC
Original Assignee
Johnson Matthey PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Johnson Matthey PLC filed Critical Johnson Matthey PLC
Priority to GB7836851A priority Critical patent/GB2005649A/en
Publication of GB2005649A publication Critical patent/GB2005649A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00Sparking plugs
    • H01T13/20Sparking plugs characterised by features of the electrodes or insulation
    • H01T13/39Selection of materials for electrodes
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C5/00Alloys based on noble metals
    • C22C5/04Alloys based on a platinum group metal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Spark Plugs (AREA)

Abstract

Electrodes particularly for igniters use for igniting combustible mixtures in I.C. engines, gas turbines and jet engines, wherein the erosion resistance is improved and the risk of failure reduced by virtue of at least a part of the working surface of each electrode comprising one or more intermetallic compound of the general formula AxBy where A is Be, Al, Sc, Y, one of the lanthanides, Si, Ti, Zr, Hf, Th, V, Nb, or Ta and B is Ru, Rh, Pd, Ir or Pt and where x and y are integers >/=1 and preferably </=5.
GB7836851A 1977-09-22 1978-09-14 Electrodes Withdrawn GB2005649A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7836851A GB2005649A (en) 1977-09-22 1978-09-14 Electrodes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3957777 1977-09-22
GB7836851A GB2005649A (en) 1977-09-22 1978-09-14 Electrodes

Publications (1)

Publication Number Publication Date
GB2005649A true GB2005649A (en) 1979-04-25

Family

ID=26264162

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7836851A Withdrawn GB2005649A (en) 1977-09-22 1978-09-14 Electrodes

Country Status (1)

Country Link
GB (1) GB2005649A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0284699A1 (en) * 1987-03-10 1988-10-05 Samuel Prof.Dr.Sc.Nat. Steinemann Intermetallic compound and its use
EP0421731A1 (en) * 1989-10-04 1991-04-10 Mintek PtAl2 intermetallic compounds with additions of copper.
WO1992010868A1 (en) * 1990-12-13 1992-06-25 Robert Bosch Gmbh Electrode, and process for manufacturing it
EP0660475A1 (en) * 1993-12-23 1995-06-28 Mintek Spark plug or igniter electrodes and spark plugs or igniters embodying same
WO2007112936A3 (en) * 2006-03-30 2008-06-19 Heraeus Gmbh W C Composite of intermetallic phases and metal

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0284699A1 (en) * 1987-03-10 1988-10-05 Samuel Prof.Dr.Sc.Nat. Steinemann Intermetallic compound and its use
EP0421731A1 (en) * 1989-10-04 1991-04-10 Mintek PtAl2 intermetallic compounds with additions of copper.
WO1992010868A1 (en) * 1990-12-13 1992-06-25 Robert Bosch Gmbh Electrode, and process for manufacturing it
AU648613B2 (en) * 1990-12-13 1994-04-28 Robert Bosch Gmbh Electrode, and process for manufacturing it
US5477022A (en) * 1990-12-13 1995-12-19 Robert Bosch Gmbh Electrode and process for manufacturing it
EP0660475A1 (en) * 1993-12-23 1995-06-28 Mintek Spark plug or igniter electrodes and spark plugs or igniters embodying same
AU675023B2 (en) * 1993-12-23 1997-01-16 Mintek Spark plug or igniter electrodes and spark plugs or igniters embodying same
WO2007112936A3 (en) * 2006-03-30 2008-06-19 Heraeus Gmbh W C Composite of intermetallic phases and metal

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)