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您的检索式：作者名="Alexandr A.Rogachev"
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| 1 | Thermal damage and ablation behavior of plasma sprayed Ba_(2)SmTaO_(6) coatings irradiated by high power continuous laser显示文摘Ba_(2)SmTaO_(6) laser protection coatings of≈200μm thickness were deposited onto stainless steel surfaces by air plasma spraying,and the laser irradiation resistance of the coatings was investigated.For laser irradiation with a laser power density less than 1000 W/cm^(2),the coatings kept intact.For a laser power density exceeding 1500 W/cm^(2),the Ba_(2)SmTaO_(6) coatings underwent recrystallization,grain growth occurred,and certain spray morphology features disappeared by melting.In the case of a laser power density of 2000 W/cm^(2) applied for 10 s,the incident laser parameter was beyond the coatings protection threshold,and the coating peeled off.The samples back surface temperature kept unchanged within the first 1s of laser irradiation,indicating thatBa_(2)SmTaO_(6) coatings have excellent laser protection capability and can limit the rise of the substrate temperature.However,the low thermal conductivity of Ba_(2)SmTaO_(6) leads to a detrimental laser energy concentration at the beginning of the laser irradiation period on the sample front surface,resulting in a rapid increase of the surface temperature up to the melting point. | Jiayi Zheng Zhuang Ma Yanbo Liu Lihong Gao Alexandr A.Rogachev | 2021 | Progress in Natural Science:Materials International2021，31，4： | 0 |
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