Ceramic sintered body and method for manufacturing the same, and nozzle member
By controlling the ratio of boron nitride and silicon nitride and sintering at atmospheric pressure, the anisotropy problem of materials such as boron nitride has been solved, and ceramic sintered bodies and nozzle components with excellent thermal shock resistance and wear resistance have been manufactured. These components are suitable for nozzle components with complex shapes, reducing processing difficulty and cost.
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DENKA CO LTD
- Filing Date
- 2020-01-30
- Publication Date
- 2026-07-10
AI Technical Summary
In the prior art, ceramics made of difficult-to-sinter materials such as boron nitride are prone to anisotropy during hot pressing sintering, resulting in non-uniform physical properties, complex processing, difficulty in manufacturing nozzle parts with complex shapes, and insufficient thermal shock resistance and wear resistance.
A ceramic sintered body with boron nitride and silicon nitride as the main components is formed by sintering under normal pressure to control the anisotropy of Leeb hardness and flexural strength, and by combining appropriate sintering aids to form a ceramic sintered body with excellent workability, which is used to manufacture nozzle components.
A ceramic sintered body and its nozzle components with excellent thermal shock resistance and wear resistance have been achieved, which can be used stably under harsh conditions, reduce processing costs and improve the service life of nozzle components.
Smart Images
Figure CN117229066B_ABST