TY - JOUR A1 - Rudolph, Pascale A1 - Brzezinka, Klaus-Werner A1 - Wäsche, Rolf A1 - Kautek, Wolfgang T1 - Physical chemistry of the femtosecond and nanosecond laser-material interaction with SiC and a SiC-TiC-TiB2 composite ceramic compound N2 - The interaction of nanosecond laser pulses in the ultraviolet wavelength range and femtosecond laser pulses in the near-infrared region with the semiconductor SiC and the composite compound SiC–TiC–TiB2 was investigated. Surface analytical techniques, such as XPS, depth profile (DP), and micro-Raman spectroscopy (?-RS) were used to identify the chemical changes between untreated and laser-treated areas. Single-pulse irradiation led to material modifications in the condensed state in most instances. Multi-pulse results differed depending on the pulse duration. Crystal structure changes were observed as a consequence of laser-induced melting and resolidification. In air contact all components underwent oxidation reactions according to thermodynamic expectations. Exceptions were observed under exclusion of oxygen, SiC was reduced to elemental Si. KW - Femtosecond techniques KW - Nanosecond techniques KW - Ceramics KW - Raman spectra/condensed matter KW - XPS/surface analysis PY - 2003 U6 - https://doi.org/10.1016/S0169-4332(02)01356-9 SN - 0169-4332 SN - 1873-5584 VL - 208-209 SP - 285 EP - 291 PB - North-Holland CY - Amsterdam AN - OPUS4-2791 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -