Plasma spheroidized thin-walled hollow sphere thermal barrier coating powder and preparation method thereof
By optimizing the preparation method of plasma-spheroidized thin-walled hollow sphere thermal barrier coating powder, the problems of uneven melting and insufficient bonding strength of powder in the high-temperature spraying process in the prior art have been solved, realizing spherical powder with high fluidity and low porosity, which significantly improves the bonding strength and structural integrity of the coating.
CN121292994BActive Publication Date: 2026-06-26广东伽瓦纳米科技有限公司
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 广东伽瓦纳米科技有限公司
- Filing Date
- 2025-09-02
- Publication Date
- 2026-06-26
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Figure CN121292994B_ABST
Abstract
The application discloses a kind of plasma spheroidization thin-walled hollow sphere thermal barrier coating powder and preparation method thereof, belong to plating material technical field.The preparation method of the plasma spheroidization thin-walled hollow sphere thermal barrier coating powder in the method is by spray granulation, high-temperature calcination, plasma spheroidization process treatment and by optimizing precursor ratio, granulation particle size control and plasma spheroidization parameter, and thin-walled hollow sphere is mainly prepared to spherical particle;The morphology reduces particle equivalent density on one hand, prolongs the heating residence time in plasma thermal field, promotes sufficient melting and spreading, and on the other hand, the thin shell of roundness and low surface defect make the real contact area and mechanical embedding effect significantly increase when depositing, so as to have excellent bonding strength between coating layers.
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