發(fā)布時(shí)間：2019-01-07 16:13

【摘要】：目的提高304不銹鋼表面的耐蝕性。方法選取304不銹鋼為基體,采用溶膠凝膠法,制備陶瓷涂層。以異丙醇鋁為前驅(qū)體制備Al2O3溶膠。通過XRD對(duì)干凝膠粉末進(jìn)行物相分析,并對(duì)陶瓷涂層的耐腐蝕性能進(jìn)行了研究,分析了制備溶膠的原料配比、膠溶劑的加入量、不同燒結(jié)溫度對(duì)陶瓷涂層表面形貌和耐腐蝕性能的影響。結(jié)果 n異丙醇鋁:n無(wú)水乙醇:n去離子=1:1:100、水浴溫度70℃、p H=4~5時(shí)攪拌制備出的溶膠,在600℃下保溫30 min可制備出無(wú)裂紋、均勻、高純、表面質(zhì)量良好的陶瓷涂層,陶瓷涂層為高純的Al2O3。結(jié)論陶瓷涂層在Na Cl溶液和鹽霧中表現(xiàn)出優(yōu)異的耐蝕性。
[Abstract]:Aim to improve the corrosion resistance of 304 stainless steel surface. Methods 304 stainless steel was selected as substrate and ceramic coating was prepared by sol-gel method. Al2O3 sol was prepared with aluminum isopropanol as precursor. The phase analysis of xerogel powder was carried out by XRD, and the corrosion resistance of ceramic coating was studied. Effects of sintering temperature on surface morphology and corrosion resistance of ceramic coatings. Results the sol prepared by stirring n isopropanol aluminum: n anhydrous ethanol: n anhydrous alcohol = 1: 1: 100, water bath temperature 70 鈩，

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