Plasma-sprayed GNP/CNT reinforced lanthanum-cerate coatings: Hot corrosion assessment in Na 2 SO 4-V 2 O 5 environment

被引：4
作者：
Singh, Pushpender [1 ]
Pandit, Niranjan [1 ]
Keshri, Anup Kumar [1 ]
机构：
[1] Indian Inst Technol Patna, Plasma Spray Coating Lab, Met & Mat Engn, Patna 801106, India
来源：
SURFACE & COATINGS TECHNOLOGY | 2024年 / 481卷
关键词：
GNP/CNT; Rare earth; Composite coating; Hot corrosion; THERMAL BARRIER COATINGS; MOLTEN SULFATE; BEHAVIOR; YSZ; OXIDATION; GD2ZR2O7; RESISTANCE; GROWTH;
D O I：
10.1016/j.surfcoat.2024.130676
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This study investigates the hot-corrosion behavior of Carbon nanotube/Graphene-nanoplatelets (CNT/GNP)reinforced lanthanum cerate (LC) coatings in a Na2SO4-V2O5 molten salt environment at 1350 degrees C for varying durations. Coatings were prepared using APS and characterized using XRD, FESEM, Raman, XPS, etc., techniques. The CNT/GNP-reinforced LCGC hybrid composite coating exhibited superior hot-corrosion resistance compared to LC and LCG coatings. The uniform dispersion of GNPs/CNTs within the coating matrix and the creation of protective LC oxides enhanced corrosion resistance. These findings highlight the potential of GNP/ CNT-reinforced coatings in protecting high-temperature components like combustion chambers and gas turbine engines from hot corrosion.
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页数：12
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