Patent ID: 9337624
Filing Date: 2016-05-10
CPC Classification: H01T

Claim Text:
1. A spark plug, comprising: a metallic shell having an axial bore; an insulator having an axial bore and being at least partially disposed within the axial bore of the metallic shell; a center electrode being at least partially disposed within the axial bore of the insulator; and a ground electrode being attached to a free end of the metallic shell; wherein the center electrode, the ground electrode, or both the center and ground electrodes include an electrode material with a metal ceramic composite structure that has a particulate component embedded in a matrix component, and the matrix component includes a platinum-based material and constitutes about 80.0-99.5 wt % of the electrode material, and the particulate component includes an electrically conductive ceramic and constitutes about 0.5-20.0 wt % of the electrode material.