Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hf6Ta2O17-based abradable seal coating and preparation method thereof
The invention relates to an Hf6Ta2O17-based abradable seal coating and a preparation method thereof, the Hf6Ta2O17-based abradable seal coating comprises a nickel-based high-temperature alloy substrate, a transition layer and a ceramic layer which are stacked, the ceramic layer comprises the following raw materials: Hf6Ta2O17 ceramic powder, a pore-forming agent and a lubricating phase, and the mass ratio of the Hf6Ta2O17 ceramic powder to the pore-forming agent to the lubricating phase is (88-92): (3-5): (3-7); the preparation method comprises the following steps: preparing sprayable powder of the ceramic layer, preparing the nickel-based high-temperature alloy substrate-the transition layer, and spraying the ceramic layer on the surface of the nickel-based high-temperature alloy substrate-the transition layer by using a supersonic atmospheric plasma spraying technology to obtain the nickel-based high-temperature alloy substrate-the transition layer-the ceramic layer. The thickness of the ceramic layer is more than 200 [mu] m, and the preparation of the Hf6Ta2O17-based abradable sealing coating is completed; the coating has the characteristics of high service temperature, low possibility of cracking and stripping, simple preparation process, low abrasion loss and good thermal shock resistance.
一种Hf6Ta2O17基可磨耗封严涂层及其制备方法，包括层叠设置的镍基高温合金基底‑‑‑过渡层‑‑‑陶瓷层，所述的陶瓷层，其原料包括Hf6Ta2O17陶瓷粉体、造孔剂和润滑相，按质量比计，Hf6Ta2O17陶瓷粉体：造孔剂：润滑相＝(88～92)：(3～5)：(3～7)；制备方法为：制备陶瓷层可喷涂粉末，制备镍基高温合金基底‑‑‑过渡层，使用超声速大气等离子喷涂技术将陶瓷层喷涂在镍基高温合金基底‑‑‑过渡层表面，得到镍基高温合金基底‑‑‑过渡层‑‑‑陶瓷层，直至陶瓷层厚度为200μm以上，完成Hf6Ta2O17基可磨耗封严涂层的制备；本发明具有服役温度高、涂层不易开裂剥落、制备工艺简单、磨损量小、抗热震性能好的特点。
Hf6Ta2O17-based abradable seal coating and preparation method thereof
The invention relates to an Hf6Ta2O17-based abradable seal coating and a preparation method thereof, the Hf6Ta2O17-based abradable seal coating comprises a nickel-based high-temperature alloy substrate, a transition layer and a ceramic layer which are stacked, the ceramic layer comprises the following raw materials: Hf6Ta2O17 ceramic powder, a pore-forming agent and a lubricating phase, and the mass ratio of the Hf6Ta2O17 ceramic powder to the pore-forming agent to the lubricating phase is (88-92): (3-5): (3-7); the preparation method comprises the following steps: preparing sprayable powder of the ceramic layer, preparing the nickel-based high-temperature alloy substrate-the transition layer, and spraying the ceramic layer on the surface of the nickel-based high-temperature alloy substrate-the transition layer by using a supersonic atmospheric plasma spraying technology to obtain the nickel-based high-temperature alloy substrate-the transition layer-the ceramic layer. The thickness of the ceramic layer is more than 200 [mu] m, and the preparation of the Hf6Ta2O17-based abradable sealing coating is completed; the coating has the characteristics of high service temperature, low possibility of cracking and stripping, simple preparation process, low abrasion loss and good thermal shock resistance.
一种Hf6Ta2O17基可磨耗封严涂层及其制备方法，包括层叠设置的镍基高温合金基底‑‑‑过渡层‑‑‑陶瓷层，所述的陶瓷层，其原料包括Hf6Ta2O17陶瓷粉体、造孔剂和润滑相，按质量比计，Hf6Ta2O17陶瓷粉体：造孔剂：润滑相＝(88～92)：(3～5)：(3～7)；制备方法为：制备陶瓷层可喷涂粉末，制备镍基高温合金基底‑‑‑过渡层，使用超声速大气等离子喷涂技术将陶瓷层喷涂在镍基高温合金基底‑‑‑过渡层表面，得到镍基高温合金基底‑‑‑过渡层‑‑‑陶瓷层，直至陶瓷层厚度为200μm以上，完成Hf6Ta2O17基可磨耗封严涂层的制备；本发明具有服役温度高、涂层不易开裂剥落、制备工艺简单、磨损量小、抗热震性能好的特点。
Hf6Ta2O17-based abradable seal coating and preparation method thereof
一种Hf6Ta2O17基可磨耗封严涂层及其制备方法
LI CONG (Autor:in) / CHAI YADONG (Autor:in) / TANG ZHILI (Autor:in) / YANG LI (Autor:in) / ZHOU YICHUN (Autor:in)
12.09.2023
Patent
Elektronische Ressource
Chinesisch
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