采用大气等离子喷涂技术制备常规和纳米Al1O3-13%TiO2涂层,并利用XRD、SEM、TEM对其显微结构进行观察分析.通过热震试验和火焰喷烧试验,研究两种涂层的热冲击性能.结果表明:相同试验条件下纳米Al<,2>O<,3>-13%TiO2涂层的热震失效循环次数明显高于常规涂层,且热震温度越高表现越明显;Al<,2>O<,3>-13%Ti02陶瓷涂层可以显著提高钢板的抗火焰烧蚀能力,且纳米涂层具有更长抗烧蚀时间.
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