Event Title
Electrochemical Etching HfC and LaB6
Faculty Sponsor
Bill Mackie
Location
Jereld R. Nicholson Library
Date
5-13-2011 3:00 PM
End Date
5-13-2011 4:30 PM
Subject Area
Physics (general)
Description
In this thesis an apparatus was developed to aid in electrochemical etching of crystals into either a conic tip or to a constant diameter of 50μm. The apparatus replaces a hand-operated tray that would raise and lower the acidic solution with respect to a crystal. The crystal is moved vertically and at a velocity that is controlled by a bi polar stepper motor. The apparatus allowed for the conic tips to be etched on the HfC crystals, with a variety of angles dependent on the speed of the apparatus. The LaB6 crystals were not etched to 50μm; however, the apparatus was used to etch crystals with slightly larger diameters.
Recommended Citation
Wickham, Scott, "Electrochemical Etching HfC and LaB6" (2011). Science and Social Sciences. Event. Submission 24.
https://digitalcommons.linfield.edu/studsymp_sci/2011/all/24
Electrochemical Etching HfC and LaB6
Jereld R. Nicholson Library
In this thesis an apparatus was developed to aid in electrochemical etching of crystals into either a conic tip or to a constant diameter of 50μm. The apparatus replaces a hand-operated tray that would raise and lower the acidic solution with respect to a crystal. The crystal is moved vertically and at a velocity that is controlled by a bi polar stepper motor. The apparatus allowed for the conic tips to be etched on the HfC crystals, with a variety of angles dependent on the speed of the apparatus. The LaB6 crystals were not etched to 50μm; however, the apparatus was used to etch crystals with slightly larger diameters.