摘要
用等离子喷涂技术制备了ZrO2结构梯度和成份梯度涂层，并试验测定了各涂层的隔热效果及抗热震性。涂层试片在2.5 Ma、1 800 ℃、5 800 kW/m2的热流冲刷5 s后，结果表明：涂层表面仍较光滑，与烧蚀前无明显差别，更无剥落、崩裂现象，平均每毫米隔热涂层降温约402.2 ℃。
Plasma spraying technology was used to prepare Zirconia thermal barrier structural and compositional gradient coatings, their heat insulation effect and thermal-shock resistance property were also characterized. When the coatings were eroded at the conditions of 2.5 Ma, 1 800℃ and 5 800 kw/m2 thermal curent for 5 seconds. Their surfaces were still smooth, there were no evident changes of morphology, breaking off and spalling phenomena. Reducing temperature of this gradient coating was about 402.2℃ per millimetre.
出处
《中国表面工程》
EI
CAS
CSCD
2000年第4期12-14,18,共4页
China Surface Engineering
关键词
等离子喷涂
热障涂层
陶瓷涂层
抗热震性
Plasma spraying ,thermal barrier coatings,ceramic coatings, thermal-shock resistan
