Effect of alumina content on femtosecond laser processing of zirconia/alumina composites

Jide Han, Olivier Malek, Jozef Vleugels, Annabel Braem, Sylvie Castagne
Zirconia/alumina nanocomposites, which are composed of zirconia phase and alumina phase, are commonly used in biomedical applications, including dental implant and hip joint implant. These materials are often difficult to machine with conventional methods due to their exceptional mechanical strength and high brittle nature. Laser processing shows certain advantages over conventional methods when processing these ceramic materials. Since laser processing is the result of laser material
more » ... n, the proce ssing results are supposed to be influenced not only by laser parameters but also by material properties. In literature, there are many research studies that focused on the influence of experimental parameters on laser processing performance, while in this research we examined how changing the alumina content of zirconia/alumina composites will influence the processing outcome. To achieve this, six grades of zirconia/alumina composites with different alumina content were prepared and processed by femtosecon d laser. The machining quality and material removal rate were examined under different experimental parameters. The results showed that the content of alumina of the composites had an obvious influence on machining performance. Therefore this research may serve as a useful reference for the material design when taking the machining performance into consideration. 62
doi:10.24412/cl-35039-2021-21-62-62 fatcat:i3tfgaapyjadzgux2tsfafc6ve