Laser Ablation of Alumina in Water

Journal Article · Fri Jan 01 04:00:00 EST 2010 · Chemical Physics Letters

DOI:https://doi.org/10.1016/j.cplett.2010.01.011· OSTI ID:1019744

Musaev, O; Midgley, A; Wrobel, J; Kruger, M

Bulk {alpha}-alumina immersed in distilled water was ablated by pulsed UV laser radiation. The resulting colloidal solution contained micron and submicron size particles. X-ray diffraction and Raman spectra of the ablated and original material are similar. Hence, most of the ablated material is {alpha}-alumina. From transmission electron microscope images, most of the submicron and all of the micron-sized particles have sharp edges and do not have spherical shapes, indicating that the dominant ablation mechanism is due to crack propagation. Some spherical particles of diameter less than 100 nm are observed, indicating that they were formed from the liquid state.

• Research Organization: Brookhaven National Laboratory (BNL) National Synchrotron Light Source
• Sponsoring Organization: DOE - OFFICE OF SCIENCE
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 1019744
• Report Number(s): BNL--95590-2011-JA
• Journal Information: Chemical Physics Letters, Journal Name: Chemical Physics Letters Journal Issue: 1-3 Vol. 487; ISSN CHPLBC; ISSN 0009-2614
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABLATION
CRACK PROPAGATION
ELECTRON MICROSCOPES
LASER RADIATION
LASERS
RAMAN SPECTRA
WATER
X-RAY DIFFRACTION
national synchrotron light source