Characterization of the drilling alumina ceramic using Nd:YAG pulsed laser


KAÇAR E. , MUTLU M., AKMAN E. , DEMİR A., CANDAN L. , CANEL T. , ...More

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, vol.209, no.4, pp.2008-2014, 2009 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 209 Issue: 4
  • Publication Date: 2009
  • Doi Number: 10.1016/j.jmatprotec.2008.04.049
  • Title of Journal : JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
  • Page Numbers: pp.2008-2014
  • Keywords: Laser drilling, Alumina ceramic, Laser plasma interaction, HOLES

Abstract

Laser micromachining can replace mechanical removal methods in many industrial applications, particularly in the processing of difficult-to-machine materials such as hardened metals, ceramics, and composites. it is being applied across many industries like semiconductor, electronics, medical, automotive, aerospace, instrumentation and communications. Laser machining is a thermal process. The effectiveness of this process depends on thermal and optical properties of the material. Therefore, laser machining is suitable for materials that exhibit a high degree of brittleness, or hardness, and have favourable thermal properties, such as low thermal diffusivity and conductivity. Ceramics which have the mentioned properties are used extensively in the microelectronics industry for scribing and hole drilling.