| 摘要 |
PROBLEM TO BE SOLVED: To reduce high frequency noise by devising a structure or the like of a conductive member for electrically connecting between a center electrode and a terminal metal fitting in a shaft hole.SOLUTION: A spark plug includes an electrical connection part which electrically connects a center electrode and a terminal metal fitting. The electrical connection part has a conductor including a rod-like metal and a ceramic phase surrounding the rod-like metal. The ceramic phase includes a first phase formed of an Fe containing oxide, and a second phase containing an oxide of at least one kind of element selected from Si, B, and P. |
