Back to results
US 2026/0239494 A1Published application
Ceramic body and electric heater
AssigneeNGK Insulators, Ltd.
InventorsKatsunori ANDO, Hiroaki NOGUCHI, Takayuki INOUE
Life of this patent
Estimating the term…
Abstract
A ceramic body according to this invention contains: a plurality of ceramic particles including one or more selected from silicon carbide, silicon nitride, and aluminum nitride; a silicon phase existing between the plurality of ceramic particles and having a dopant dissolved in solid solution therein; and a plurality of dopant particles existing in the silicon phase and containing the dopant. The dopant is a Group 13 element or a Group 15. A content of the silicon phase in the ceramic body is 20 to 80% by mass. A porosity of the ceramic body is 30% or less.
Claims9
A ceramic body comprising:
- a plurality of ceramic particles including one or more selected from silicon carbide, silicon nitride, and aluminum nitride;
- a silicon phase existing between the plurality of ceramic particles and having a dopant dissolved in solid solution therein;
- and
- a plurality of dopant particles existing in the silicon phase and containing the dopant,
- wherein the dopant is a Group 13 element or a Group 15 element,
- a content of the silicon phase in the ceramic body is 20 to 80% by mass, and
- a porosity of the ceramic body is 30% or less.
4 more elements
Dependencies are inferred from the claim text.