Pulse Laser Removal of Sputtered Oxide Films: Measurement of Adhesion Strength

R. Oltra, C. Sartori, J. Boquillon
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Abstract

Heating power of continuous lasers (CO2) has been demonstrated to motivate the spall of coatings by generating compressive stress in the coating1. On the other hand, dynamic spallation of coatings can be checked by using pulsed lasers, as shown in the pionnering work presented by Vossen2. Quantitative modelling of this laser spallation technique was performed by V. Gupta allowing to determine the interface strength of several metal-ceramic interfaces3. The same approach has been used by M.W. Sigrist for plasma sprayed ceramic coatings4.
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脉冲激光去除溅射氧化膜:附着力的测量
连续激光器(CO2)的加热功率通过在涂层中产生压应力来激发涂层的剥落1。另一方面,可以使用脉冲激光检查涂层的动态剥落,如Vossen2提出的开创性工作所示。V. Gupta对这种激光散裂技术进行了定量建模,从而确定了几种金属-陶瓷界面的界面强度。同样的方法也被M.W. Sigrist用于等离子喷涂陶瓷涂层。
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