2013/03/19 by Romil Bhandavat, A. Feldman, Christopher L. Cromer +2 · 1 citation
Materials Science · Engineering · #Diamond and Carbon-based Materials Research #Laser Material Processing Techniques #Laser-Ablation Synthesis of Nanoparticles
paper · doi:10.1021/am302755x
openalex publication_date 2013/03/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
We study the laser irradiance behavior and resulting structural evolution of polymer-derived silicon-boron-carbonitride (Si(B)CN) functionalized multiwall carbon nanotube (MWCNT) composite spray coatings on copper substrate. We report a damage threshold value of 15 kWcm(-2) and an optical absorbance of 0.97 after irradiation. This is an order of magnitude improvement over MWCNT (1.4 kWcm(-2), 0.76), SWCNT (0.8 kWcm(-2), 0.65) and carbon paint (0.1 kWcm(-2), 0.87) coatings previously tested at 10.6 μm (2.5 kW CO2 laser) exposure. Electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy suggests partial oxidation of Si(B)CN forming a stable protective SiO2 phase upon irradiation.