Thermal barrier coating system
A thermal barrier coating and coating technology, which is applied in the fields of power, material preparation, aerospace, aviation, and energy, can solve problems such as damage and failure of the interface between the ceramic layer and the bonding layer, increase the ability to ease thermal mismatch, improve Good interface bonding strength and thermal barrier effect
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[0021] Below in conjunction with accompanying drawing, the present invention is described in further detail:
[0022] see figure 1 As shown, the present patent invents a thermal barrier coating system, which includes an adhesive layer 2 and a ceramic coating that are sequentially prepared on a substrate 1 . The ceramic coating mainly includes a toughened heat insulating layer 6, a strengthening layer 4, and a transition layer 5 between the two layers; the strengthening layer 4, the transition layer 5 and the toughened heat insulating layer 6 are sequentially prepared on the bonding layer 2. The material of the ceramic coating is YSZ. By depositing the YSZ powder particles on the bonding layer in a completely melted manner, the reinforcement layer 4 with a dense columnar crystal structure with high fracture toughness is obtained, and the bonding rate is ≥96%; the deposition thickness of the reinforcement layer 4 is 30-110 μm, which is vertical The quasi-columnar crystal struc...
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