Thermal fatigue crack-resistant coatings for motor vehicle cylinder head
    30.
    发明申请
    Thermal fatigue crack-resistant coatings for motor vehicle cylinder head 审中-公开
    汽车汽缸盖热疲劳抗裂涂层

    公开(公告)号:US20050233087A1

    公开(公告)日:2005-10-20

    申请号:US10993725

    申请日:2004-11-19

    Applicant: Seok Ha

    Inventor: Seok Ha

    Abstract: Methods are provided for coating a zirconia film that can reduce or prevent the occurrence of thermal fatigue cracks of a cylinder head of a diesel engine. The invention also relates to spray coat application of a zirconia composition onto an aluminium surface or part of a motor vehicle. Preferred methods of the invention include spray coating to form a zirconia film wherein the phase of the thin zirconia film is preferably formed in a tetragonal phase with semi-stability, and the morphological change of the coating layer into a monoclinic phase can result in absorption of crack stress, i.e. crack energy, which can lead to increased resistance in preventing crack propagation.

    Abstract translation: 提供了用于涂覆氧化锆膜的方法,其可以减少或防止柴油发动机的气缸盖的热疲劳裂纹的发生。 本发明还涉及将氧化锆组合物喷涂到铝表面或机动车辆的一部分上。 本发明的优选方法包括喷涂以形成氧化锆膜,其中薄氧化锆膜的相优选以半稳定性形成四方晶相,并且涂层形成单斜晶相的形态变化可导致 裂纹应力,即裂纹能量,这可以导致增加的阻力来防止裂纹扩展。

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