Work

Focused Ion Beam Milling as a Method for Machining Explosive Crystals**

Year: 2024

Type: article

Abstract: Experimental pore collapse studies have traditionally relied on machining methods that are mechanically active and result in rough surfaces, added stresses, and premature material fractures which are a source of experimental error. This work focuses on the method development and the results of adapting the focused ion beam to mill micro and nano‐scale pores with increased geometrical freedom into explosive crystals. Results include developing a simplified mathematical relationship between the electron beam energy and mill rate, assessments of pore quality, and material and machine‐specific optimal milling parameters.

Source: Propellants Explosives Pyrotechnics

DOI: 10.1002/prep.202400083

Authors: Kerry‐Ann M. Stirrup, Christopher J. Gilpin, Weinong W. Chen

Institutions: Purdue University West Lafayette, Iowa State University

Language: English

Topic: Ion-surface interactions and analysis

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,660

Funders: U.S. Army Combat Capabilities Development Command, Air Force Research Laboratory