Pulsed laser deposition of AlMgB14 thin films (open access)

Pulsed laser deposition of AlMgB14 thin films

Hard, wear-resistant coatings of thin film borides based on AlMgB{sub 14} have the potential to be applied industrially to improve the tool life of cutting tools and pump vanes and may account for several million dollars in savings as a result of reduced wear on these parts. Past work with this material has shown that it can have a hardness of up to 45GPa and be fabricated into thin films with a similar hardness using pulsed laser deposition. These films have already been shown to be promising for industrial applications. Cutting tools coated with AlMgB{sub 14} used to mill titanium alloys have been shown to substantially reduce the wear on the cutting tool and extend its cutting life. However, little research into the thin film fabrication process using pulsed laser deposition to make AlMgB{sub 14} has been conducted. In this work, research was conducted into methods to optimize the deposition parameters for the AlMgB{sub 14} films. Processing methods to eliminate large particles on the surface of the AlMgB{sub 14} films, produce films that were at least 1m thick, reduce the surface roughness of the films, and improve the adhesion of the thin films were investigated. Use of a femtosecond laser …
Date: November 18, 2008
Creator: Russell, Alan; Bastawros, Ashraf & Tan, Xiaoli
System: The UNT Digital Library
Noise Exposure Summary And Comparitive Analyses (open access)

Noise Exposure Summary And Comparitive Analyses

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Date: November 18, 2013
Creator: Bumala, P A
System: The UNT Digital Library