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溶膠-凝膠法制備Al2O3/ZrO2涂層及對γ-TiAl
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遼寧省高等學(xué)?？茖W(xué)研究項(xiàng)目（05L 342）；沈陽化工學(xué)院博士科研啟動(dòng)基金資助項(xiàng)目(200603206)


Preparation of Al2O3/ZrO2 Coating by Sol-Gel Method and Its Effect on High-Temperature Oxidation Behavior of γ-TiAl Based Alloys
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    摘要:

    以異丙醇鋁(Al(OC3H7)3)和氧氯化鋯(ZrOCl2?8H2O)為原料，采用溶膠-凝膠法在γ-TiAl基合金表面制備Al2O3/ZrO2涂層。研究涂層試樣和空白試樣在1000 ℃靜態(tài)空氣中的長期氧化行為和循環(huán)氧化行為。結(jié)果表明：Al2O3/ZrO2涂層降低了該合金的氧化速率，提高了合金的抗循環(huán)氧化能力。對涂層的作用機(jī)制進(jìn)行了探討

    Abstract:

    Al2O3/ZrO2 coating was deposited on γ-TiAl based alloys with aluminum isopropoxide (Al(OC3H7)3) and zirconium oxychloride octahydrate (ZrOCl2?8H2O) as starting materials by sol-gel method. The coating synthesized using dip-coating process, was uniform and crack-free. Isothermal and cyclic oxidations of the coated and uncoated specimens at 1000 ℃ in static air were carried out to test the coating effect on the oxidation behavior of the alloy. The coating decreases the oxidation rate of the alloys and increases the cyclic oxidation resistance. The possible mechanism of the coating on the oxidation behavior of the alloy was discussed

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張學(xué)軍,高春香,王 蕾,李 琪,王淑菊,張 英.溶膠-凝膠法制備Al2O3/ZrO2涂層及對γ-TiAl[J].稀有金屬材料與工程,2010,39(2):367~371.[Zhang Xuejun, Gao Chunxiang, Wang Lei, Li Qi, Wang Shuju, Zhang Ying. Preparation of Al2O3/ZrO2 Coating by Sol-Gel Method and Its Effect on High-Temperature Oxidation Behavior of γ-TiAl Based Alloys[J]. Rare Metal Materials and Engineering,2010,39(2):367~371.]
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  • 收稿日期:2009-09-04
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