Development of an analytical model for the laser machining of ceramic and glass‐ceramic materials

Autor:	Kevin W. Kirby, Doruk Engin
Rok vydání:	1996
Předmět:	Glass-ceramic Materials science Evaporation Analytical chemistry General Physics and Astronomy Laser law.invention Machining law visual_art Vaporization visual_art.visual_art_medium Surface layer Ceramic Composite material Intensity (heat transfer)
Zdroj:	Journal of Applied Physics. 80:681-690
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.362877
Popis:	A laser machining model for ceramics and glass ceramics is developed from the analytical treatment of a one‐dimensional vaporization problem with a distributed heat source. Analytical solutions are derived for evolution of the material system from an arbitrary initial state to a quasisteady state. The developed solutions are used to predict the behavior of high‐intensity Nd:YAG laser pulses (up to 107 W/cm2, ms duration) on a typical ceramic or glass ceramic material. Predictions include the critical intensity required for vaporization of material Ic, the material removal ΔM, and thickness of the affected residual surface layer S after a single laser pulse of given shape and intensity. Predictions are compared with the numerical calculations from a commercially available software package.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9b85ef04113071654edf671b3a94117f https://doi.org/10.1063/1.362877 Zobrazit plný text záznamu