UV-laser-assisted processing of ceramics in air and in water

Liquid water acts as an important role in laser processing. Water can be added on purpose gain better result: to avoid redeposition of debris, to cool the material, to increase plasma pressure or to conduct light. On the other hand water is the most common, cheap and safe medium and has an exceptionally high heat capacity. So many researches have been carried out in water-assisted laser processing. In this article, UV laser (wavelength: 355nm, pulse width: 10ns THG Nd:YAG laser) assisted processing of ceramics in air and in water is studied and compared with the processing quality in different environment.