Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Tantalum-based high-entropy silicide anti-oxidation coating and method for preparing tantalum-based high-entropy silicide anti-oxidation coating by using slurry method
The invention discloses a tantalum-based coating prepared by a slurry method, the coating is composed of an outer layer, a middle layer and an inner layer, the material component of the outer layer is high-entropy silicide MeSi2, the material component of the middle layer is TaSi2, and the material component of the inner layer is Ta low silicide; and the Me is an alloy and is composed of at least three metal elements of W, Mo, Nb, Ta and Cr. The invention also provides a preparation method of the coating, which comprises the following steps of: firstly, polishing the surface of the tantalum plate to be smooth by abrasive paper, and then carrying out weak acid washing, weak alkali washing, water washing and drying. The preparation method comprises the following steps: preparing precursor powder through ball milling, preparing slurry, uniformly coating the surface of a tantalum plate with the slurry through a dipping or brush coating method, drying and curing a test piece in a vacuum drying oven, carrying out vacuum sintering, and cooling to room temperature to complete the preparation of the high-entropy silicide coating. The preparation process of the coating is simple and controllable, and the low-temperature and high-temperature oxidation resistance of the tantalum-based alloy can be improved.
本发明公开了一种利用料浆法制备的钽基涂层，所述涂层由外层、中间层和内层组成，其中：所述外层材料组分为高熵硅化物MeSi2，中间层材料组分为TaSi2，内层材料组分为Ta的低硅化物；所述Me为合金，由W、Mo、Nb、Ta、Cr中的至少三种金属元素组成。本发明还提供了上述所述涂层的制备方法，包括以下步骤：首先，钽板表面经砂纸打磨光滑后进行弱酸洗、弱碱洗、水洗和烘干。通过球磨制备前驱体粉末后，配置料浆，通过浸渍或刷涂法等将料浆均匀涂覆在钽板表面，试件在真空干燥箱中烘干固化后真空烧结，冷却至室温，完成高熵硅化物涂层的制备。本发明涂层制备工艺简单可控，可提高钽基合金的低高温抗氧化性能。
Tantalum-based high-entropy silicide anti-oxidation coating and method for preparing tantalum-based high-entropy silicide anti-oxidation coating by using slurry method
The invention discloses a tantalum-based coating prepared by a slurry method, the coating is composed of an outer layer, a middle layer and an inner layer, the material component of the outer layer is high-entropy silicide MeSi2, the material component of the middle layer is TaSi2, and the material component of the inner layer is Ta low silicide; and the Me is an alloy and is composed of at least three metal elements of W, Mo, Nb, Ta and Cr. The invention also provides a preparation method of the coating, which comprises the following steps of: firstly, polishing the surface of the tantalum plate to be smooth by abrasive paper, and then carrying out weak acid washing, weak alkali washing, water washing and drying. The preparation method comprises the following steps: preparing precursor powder through ball milling, preparing slurry, uniformly coating the surface of a tantalum plate with the slurry through a dipping or brush coating method, drying and curing a test piece in a vacuum drying oven, carrying out vacuum sintering, and cooling to room temperature to complete the preparation of the high-entropy silicide coating. The preparation process of the coating is simple and controllable, and the low-temperature and high-temperature oxidation resistance of the tantalum-based alloy can be improved.
本发明公开了一种利用料浆法制备的钽基涂层，所述涂层由外层、中间层和内层组成，其中：所述外层材料组分为高熵硅化物MeSi2，中间层材料组分为TaSi2，内层材料组分为Ta的低硅化物；所述Me为合金，由W、Mo、Nb、Ta、Cr中的至少三种金属元素组成。本发明还提供了上述所述涂层的制备方法，包括以下步骤：首先，钽板表面经砂纸打磨光滑后进行弱酸洗、弱碱洗、水洗和烘干。通过球磨制备前驱体粉末后，配置料浆，通过浸渍或刷涂法等将料浆均匀涂覆在钽板表面，试件在真空干燥箱中烘干固化后真空烧结，冷却至室温，完成高熵硅化物涂层的制备。本发明涂层制备工艺简单可控，可提高钽基合金的低高温抗氧化性能。
Tantalum-based high-entropy silicide anti-oxidation coating and method for preparing tantalum-based high-entropy silicide anti-oxidation coating by using slurry method
一种钽基高熵硅化物抗氧化涂层及其利用料浆法制备的方法
LIU XINLI (Autor:in) / TIAN DEXIANG (Autor:in) / WANG DEZHI (Autor:in) / WU ZHUANGZHI (Autor:in) / DUAN BAIHUA (Autor:in)
06.02.2024
Patent
Elektronische Ressource
Chinesisch
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