Aecc Beijing Institute of Aeronautical Materials

Zhiji Automotive Technology Co., Ltd.

Tianying Wang

Jun Wu

Yang Yu

Jie Liu

Haoliang Tian

Changliang Wang

Junguo Gao

Mengqiu Guo

Zhihui Tang

Yongjing Cui

Zimin Zhou

Ang Zhang

Fulong Yan

A method for producing an abrasion-resistant coating on the inner wall of an aluminum alloy workpiece is provide. The steps include mixing a graphene powder and Al powder to obtain a mixed powder; combining and heating the mixed power with a polyvinyl alcohol (PVA) liquid, and performing spray granulation to obtain a low-temperature self-propagating composite; stirring a slurry comprising the low-temperature self-propagating composite and sodium silicate; injecting the slurry into a cylindrical inner cavity of an aluminum alloy workpiece mounted on a horizontal rotary table for rotation, the aluminum alloy workpiece is heated with the rotation at a second temperature of 80-100° C. so that the slurry is uniformly solidified on the cylindrical inner surface of the cylindrical inner cavity; and burning the slurry, after the slurry is uniformly solidified and while the rotation is maintained, with an oxyacetylene flame to form the wear-resistant coating.

Preparation method for wear-resistant coating on cylindrical inner wall surface of aluminum alloy

A method for preparing a thermal barrier coating (TBC) material includes: spraying a metal mixture onto a surface of an alloy using supersonic flame spraying or explosive spraying to form a bottom layer; spraying an yttria-stabilized zirconia (YSZ) precursor sol onto the bottom layer using liquid plasma spraying to form an intermediate layer; and spraying a ceramic composite including SiOand La&#x2014;Ce&#x2014;Zr&#x2014;O using plasma spraying or explosive spraying to form a surface layer.

Method for fabricating thermal barrier coating having self-repair and temperature-sensitive functions

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Beijing, China

Tianying Wang