Method for forming an improved thermal barrier coating (TBC), thermal-barrier-coated article and method for the repair thereof
    1.
    发明授权
    Method for forming an improved thermal barrier coating (TBC), thermal-barrier-coated article and method for the repair thereof 有权
    用于形成改进的热障涂层(TBC),热障涂层制品及其修复方法的方法

    公开(公告)号:US09429035B2

    公开(公告)日:2016-08-30

    申请号:US14237255

    申请日:2012-08-03

    摘要: The invention refers to a process for the formation of a thermal barrier coating on a substrate, comprising the steps of: a) applying a bond coat on the substrate; b) subjecting the bond coat to a low activity aluminizing process, thus obtaining, above the bond coat, a temporary intermediate diffusion layer; c) applying, on the temporary intermediate diffusion layer, aluminum powder in suspension with a solvent or aqueous base, said aluminum powder having size distribution from 15 to 150 μm; d) performing a thermal treatment in a vacuum at a pressure from 10−3 to 10−5 bars, at a temperature from 800° C. to 1050° C. and with an active phase having duration in the range of 60 minutes to 4 hours, thus obtaining above the bond coat an enriched intermediate diffusion layer; and e) applying a definitive barrier layer on said enriched intermediate diffusion layer.

    摘要翻译: 本发明涉及在衬底上形成热障涂层的方法,包括以下步骤:a)在衬底上施加粘合涂层; b)使接合涂层进行低活性镀铝处理,从而在粘结涂层上获得临时中间扩散层; c)在临时中间扩散层上涂覆悬浮液中的铝粉末与溶剂或碱水溶液,所述铝粉末的尺寸分布为15至150μm; d)在10-3至10-5巴的压力下,在800℃至1050℃的温度下进行真空中的热处理,并且活性相的持续时间为60分钟至4分钟 小时,从而在粘结层上方获得富集的中间扩散层; 以及e)在所述富集的中间扩散层上施加确定的阻挡层。

    METHOD FOR FORMING AN IMPROVED THERMAL BARRIER COATING (TBC), THERMAL-BARRIER-COATED ARTICLE AND METHOD FOR THE REPAIR THEREOF
    2.
    发明申请
    METHOD FOR FORMING AN IMPROVED THERMAL BARRIER COATING (TBC), THERMAL-BARRIER-COATED ARTICLE AND METHOD FOR THE REPAIR THEREOF 有权
    形成改进的热障涂层(TBC)的方法,热障涂层制品及其维修方法

    公开(公告)号:US20150030877A1

    公开(公告)日:2015-01-29

    申请号:US14237255

    申请日:2012-08-03

    摘要: The invention refers to a process for the formation of a thermal barrier coating on a substrate, comprising the steps of: a) applying a bond coat on the substrate; b) subjecting the bond coat to a low activity aluminizing process, thus obtaining, above the bond coat, a temporary intermediate diffusion layer; c) applying, on the temporary intermediate diffusion layer, aluminium powder in suspension with a solvent or aqueous base, said aluminium powder having size distribution from 15 to 150 μm; d) performing a thermal treatment in a vacuum at a pressure from 10−3 to 10−5 bars, at a temperature from 800° C. to 1050° C. and with an active phase having duration in the range of 60 minutes to 4 hours, thus obtaining above the bond coat an enriched intermediate diffusion layer; and e) applying a definitive barrier layer on said enriched intermediate diffusion layer.

    摘要翻译: 本发明涉及在衬底上形成热障涂层的方法,包括以下步骤:a)在衬底上施加粘合涂层; b)使接合涂层进行低活性镀铝处理,从而在粘结涂层上获得临时中间扩散层; c)在临时中间扩散层上涂覆悬浮液中的铝粉末与溶剂或碱水溶液,所述铝粉末的尺寸分布为15至150μm; d)在10-3至10-5巴的压力下,在800℃至1050℃的温度下进行真空中的热处理,并且活性相的持续时间为60分钟至4分钟 小时,从而在粘结层上方获得富集的中间扩散层; 以及e)在所述富集的中间扩散层上施加确定的阻挡层。