Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-entropy ceramic modified coating with controllable components and controllable microstructure, and preparation method thereof
The invention relates to a high-entropy ceramic modified coating with controllable components and a controllable microstructure, and a preparation method thereof. The high-entropy ceramic modified coating is a mixed coating formed by any four or more elements selected from zirconium (Zr), titanium (Ti), hafnium (Hf), tantalum (Ta), niobium (Nb), vanadium (V), chromium (Cr), molybdenum (Mo) or tungsten (W) and a substrate coating. The substrate coating comprises SiC-Si, ZrC-ZrSi2 or TiC-Ti. The preparation method comprises the following steps: pre-treating a base material; and mixing a solvent and a binder, carrying out ultrasonic dispersion, then adding a corresponding high-entropy ceramic precursor raw material TMxOy and other raw materials to prepare a uniform slurry suspension solution, and carrying out dipping-drying curing to obtain a pre-coating layer. According to the method, the high-entropy ceramic does not need to be prepared in advance, only the corresponding precursor raw materials are used for coating the surface of the base material through a simple material coating method, and a (carbon, nitrogen, carbon nitrogen or boron) compound high-entropy ceramic solid solution is generated in situ in a infiltration process, so solid solution strengthening effect can be achieved, the cohesion binding force of the coating is high, the hardness and high-temperature oxidation corrosion resistance of the coating can be further improved, and large-scale industrial application can be achieved.
本发明涉及一种成分及微结构可控高熵陶瓷改性涂层及制备方法，以锆Zr、钛Ti、铪Hf、钽Ta、铌Nb、钒V、铬Cr、钼Mo或钨W中的任意四种或四种以上的元素与基底涂层的混合涂层；所述基底涂层包括SiC‑Si、ZrC‑ZrSi2或TiC‑Ti；基材预处理。将溶剂、粘结剂混合超声分散，后加入对应高熵陶瓷前驱体原料TMxOy及其他原料，制得均匀料浆悬浮溶液料浆，浸渍‑烘干固化得预涂层。本发明无需预先制备高熵陶瓷，只用将对应的前驱体原料通过简易的料将法涂覆到基材表面，熔渗过程中原位生成(碳、氮、碳氮、硼)化物高熵陶瓷固溶体，可起到固溶强化的作用，涂层内聚结合力强，可进一步改善涂层的硬度和耐高温氧化腐蚀性能，可实现规模化工业应用。
High-entropy ceramic modified coating with controllable components and controllable microstructure, and preparation method thereof
The invention relates to a high-entropy ceramic modified coating with controllable components and a controllable microstructure, and a preparation method thereof. The high-entropy ceramic modified coating is a mixed coating formed by any four or more elements selected from zirconium (Zr), titanium (Ti), hafnium (Hf), tantalum (Ta), niobium (Nb), vanadium (V), chromium (Cr), molybdenum (Mo) or tungsten (W) and a substrate coating. The substrate coating comprises SiC-Si, ZrC-ZrSi2 or TiC-Ti. The preparation method comprises the following steps: pre-treating a base material; and mixing a solvent and a binder, carrying out ultrasonic dispersion, then adding a corresponding high-entropy ceramic precursor raw material TMxOy and other raw materials to prepare a uniform slurry suspension solution, and carrying out dipping-drying curing to obtain a pre-coating layer. According to the method, the high-entropy ceramic does not need to be prepared in advance, only the corresponding precursor raw materials are used for coating the surface of the base material through a simple material coating method, and a (carbon, nitrogen, carbon nitrogen or boron) compound high-entropy ceramic solid solution is generated in situ in a infiltration process, so solid solution strengthening effect can be achieved, the cohesion binding force of the coating is high, the hardness and high-temperature oxidation corrosion resistance of the coating can be further improved, and large-scale industrial application can be achieved.
本发明涉及一种成分及微结构可控高熵陶瓷改性涂层及制备方法，以锆Zr、钛Ti、铪Hf、钽Ta、铌Nb、钒V、铬Cr、钼Mo或钨W中的任意四种或四种以上的元素与基底涂层的混合涂层；所述基底涂层包括SiC‑Si、ZrC‑ZrSi2或TiC‑Ti；基材预处理。将溶剂、粘结剂混合超声分散，后加入对应高熵陶瓷前驱体原料TMxOy及其他原料，制得均匀料浆悬浮溶液料浆，浸渍‑烘干固化得预涂层。本发明无需预先制备高熵陶瓷，只用将对应的前驱体原料通过简易的料将法涂覆到基材表面，熔渗过程中原位生成(碳、氮、碳氮、硼)化物高熵陶瓷固溶体，可起到固溶强化的作用，涂层内聚结合力强，可进一步改善涂层的硬度和耐高温氧化腐蚀性能，可实现规模化工业应用。
High-entropy ceramic modified coating with controllable components and controllable microstructure, and preparation method thereof
一种成分及微结构可控高熵陶瓷改性涂层及制备方法
FU QIANGANG (Autor:in) / ZHANG PEI (Autor:in) / LI HEJUN (Autor:in) / LIU BING (Autor:in) / CHENG CHUNYU (Autor:in) / SUN JIA (Autor:in) / XIE WEI (Autor:in) / ZHANG JIAPING (Autor:in)
31.08.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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