YAN Sha1 SHANG Yijun1 SONG Jinxia2 LE Xiaoyun3 ZHAO Weijiang1 XUE Jianming1 WANG Yugang1 1. Mixing of ceramic/NiCoCrAlY thermal barrier coating by intense pulsed ion beam irradiation[J]. Nuclear techniques, 2009, 32(3): 182-186.
YAN Sha1 SHANG Yijun1 SONG Jinxia2 LE Xiaoyun3 ZHAO Weijiang1 XUE Jianming1 WANG Yugang1 1. Mixing of ceramic/NiCoCrAlY thermal barrier coating by intense pulsed ion beam irradiation[J]. Nuclear techniques, 2009, 32(3): 182-186.DOI:
Thermal barrier coating (TBC) is used for enhancing the working temperature of high temperature alloys. Its thermal stability directly decides service life of the high temperature parts protected by TBC. In this work
intense pulsed ion beam (IPIB) irradiation was used to obtain stability-improved TBC of ZrO2/NiCoCrAlY layers. The IPIB irradiation with proper parameters could form a mixing layer at the interface of ZrO2/NiCoCrAlY with improved thermal stability. The best TBC could be formed under the following IPIB parameters: peak energy of 300keV
pulse duration of 65ns
and current density of 250A/cm2. We owe the enhanced thermal stability of the TBC to the IPIB-induced elemental re-distribution
hence a protection layer under the thermal oxidation working condition
with reduced mismatch and stress between the layers.