公开(公告)号：BR9405233A

公开(公告)日：1995-08-01

申请号：BR9405233

申请日：1994-12-23

Applicant: MINTEK

Inventor： DE VILLIERS STEYN HERMANUS ,  MERVYN WOLFF IRA ,  COETZEE RUDOLPH ,  CORTIE MICHAEL BERNARD

IPC: H01T13/20 ,  H01T13/39

Abstract: A spark plug or other spark igniter is provided in which at least an operative part of one, both or all electrodes thereof is made of a material including an intermetallic compound having a melting point above 1400 DEG C and chosen to exhibit adequate toughness, resistance to thermal shock, and electrical conductivity. The intermetallic compound may form one phase of a multi-phase material. Ruthenium aluminide is disclosed as a preferred intermetallic compound.