If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Chemical Dynamics of a Laser Microprobe Vapor Plume in a Controlled Atmosphere

$29.00 plus tax (Refund Policy)

Buy Article:

Abstract:

The vapor plume produced by the action of a focused laser beam on a solid sample of an aluminum alloy or zirconium was studied in a controlled atmosphere. The formation of binary compounds by chemical reaction between the vapor plume and the atmosphere was followed with the use of emission, absorption, and fluorescence detection methods. Most experiments were performed at 150 Torr in 100% O2, 50% O2/ 50% Ar, and 100% Ar. Both spatially and temporally resolved profiles of the metal monoxide formed in the plume were recorded. The experimental data are compared to kinetic calculations for the formation of AlO and AlO2. The initial concentration of the atmospheric gas in the region of the plume was found to be less than the average bulk concentration in the sample chamber. A "piston" mechanism of plume expansion is proposed to account for this. Complete mixing of the plume with the atmosphere took at least 100 μs. A significant quantity of metal monoxide was formed in an atmosphere containing only trace amounts of oxygen. The sample is believed to be the source of oxygen.

Keywords: Aluminum monoxide; Atomic absorption; Emission; Laser ablation; Laser microprobe; Molecular fluorescence

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702844554765

Affiliations: 1: Department of Chemistry, Oregon State University, Corvallis, Oregon 97331–4003; present address: Tektronix, Inc., Beaverton, Oregon 97077 2: Department of Chemistry, Oregon State University, Corvallis, Oregon 97331–4003

Publication date: November 1, 1984

More about this publication?
Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more