Bibliographic Citation
Document | |
---|---|
DOI | 10.2172/555544 |
Title | Roughening and removal of surface contamination from beryllium using negative transferred-arc cleaning |
Creator/Author | Castro, R.G. ; Hollis, K.J. ; Elliott, K.E. [Los Alamos National Lab., NM (United States). Materials Science and Technology Div.] |
Publication Date | 1997 Dec 01 |
OSTI Identifier | OSTI ID: 555544; Legacy ID: DE98001329 |
Report Number(s) | LA-UR--97-3276; CONF-970992-- |
DOE Contract Number | W-7405-ENG-36 |
Other Number(s) | Other: ON: DE98001329; TRN: TRN: AHC29802%%129 |
Resource Type | Technical Report |
Resource Relation | Conference: 1. international symposium on applied plasma science, Los Angeles, CA (United States), 22-26 Sep 1997; Other Information: PBD: [1997] |
Research Org | Los Alamos National Lab., NM (United States) |
Sponsoring Org | USDOE, Washington, DC (United States) |
Subject | 36 MATERIALS SCIENCE ;32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; BERYLLIUM; SURFACE CLEANING; AEROSPACE INDUSTRY; PLASMA ARC SPRAYING; PLASMA GUNS; EXPERIMENTAL DATA; ROUGHNESS |
Description/Abstract | Negative transferred-arc (TA) cleaning has been used extensively in the aerospace industry to clean and prepare surfaces prior to plasma spraying of thermal barrier coatings. This non-line of sight process can improve the bond strength of plasma sprayed coatings to the substrate material by cleaning and macroscopically roughening the surface. A variation of this cleaning methodology is also used in gas tungsten arc (GTA) welding to cathodically clean the surfaces of aluminum and magnesium prior to welding. Investigations are currently being performed to quantify the degree in which the negative transferred-arc process can clean and roughen metal surfaces. Preliminary information will be reported on the influence of processing conditions on roughening and the removal of carbon and other contaminates from the surface of beryllium. Optical, spectral and electrical methods to quantify cleaning of the surface will also be discussed. Applications for this technology include chemical-free precision cleaning of beryllium components. |
Country of Publication | United States |
Language | English |
Format | Size: 8 p. |
Availability | OSTI as DE98001329 |
System Entry Date | 2007 May 07 |
Top |