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Method for preparing whisker toughened composite coating by liquid-phase method spraying process
The invention discloses a method for preparing a whisker toughened composite coating through a liquid-phase method spraying process, and belongs to the field of nano thermal protection coating preparation. Whiskers and ceramic-based nano powder are mixed and then added into a solvent, then a dispersing agent and a softening agent are added to obtain a suspension, the suspension is sprayed out through a centrifugal atomizer after being subjected to ball milling, the atomized suspension is melted under the action of a plasma heat source of plasma spraying and impacts the surface of a base body, and the whisker toughened composite ceramic coating is obtained. The method is short in preparation period, simple in process, easy to control, capable of achieving large-scale production and wide in application market.
本发明公开一种液相法喷涂工艺制备晶须增韧复合涂层的方法，属于纳米热防护涂层制备领域，将晶须与陶瓷基纳米粉体混合后加入到溶剂中，然后加入分散剂和柔软剂得到悬浮液，将悬浮液球磨后，通过离心雾化器喷出，雾化的悬浮液在等离子喷涂的等离子体热源作用下熔化并撞击基体表面，得到晶须增韧复合陶瓷涂层。该方法制备周期短，工艺简单，易于控制，可大规模生产，具有广阔的应用市场。
Method for preparing whisker toughened composite coating by liquid-phase method spraying process
The invention discloses a method for preparing a whisker toughened composite coating through a liquid-phase method spraying process, and belongs to the field of nano thermal protection coating preparation. Whiskers and ceramic-based nano powder are mixed and then added into a solvent, then a dispersing agent and a softening agent are added to obtain a suspension, the suspension is sprayed out through a centrifugal atomizer after being subjected to ball milling, the atomized suspension is melted under the action of a plasma heat source of plasma spraying and impacts the surface of a base body, and the whisker toughened composite ceramic coating is obtained. The method is short in preparation period, simple in process, easy to control, capable of achieving large-scale production and wide in application market.
本发明公开一种液相法喷涂工艺制备晶须增韧复合涂层的方法，属于纳米热防护涂层制备领域，将晶须与陶瓷基纳米粉体混合后加入到溶剂中，然后加入分散剂和柔软剂得到悬浮液，将悬浮液球磨后，通过离心雾化器喷出，雾化的悬浮液在等离子喷涂的等离子体热源作用下熔化并撞击基体表面，得到晶须增韧复合陶瓷涂层。该方法制备周期短，工艺简单，易于控制，可大规模生产，具有广阔的应用市场。
Method for preparing whisker toughened composite coating by liquid-phase method spraying process
一种液相法喷涂工艺制备晶须增韧复合涂层的方法
BAI YU (author) / HU YONGBAO (author) / LIU QI (author) / WANG YU (author)
2021-05-28
Patent
Electronic Resource
Chinese
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