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Title: The laser micro-machining system for diamond anvil cell experiments and general precision machining applications at the High Pressure Collaborative Access Team

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.4926889· OSTI ID:1203737
 [1];  [1];  [1];  [1]
  1. Carnegie Inst. of Washington, Argonne, IL (United States). High Pressure Collaborative Access Team (HPCAT)

We report we have designed and constructed a new system for micro-machining parts and sample assemblies used for diamond anvil cells and general user operations at the High Pressure Collaborative Access Team, sector 16 of the Advanced Photon Source. The new micro-machining system uses a pulsed laser of 400 ps pulse duration, ablating various materials without thermal melting, thus leaving a clean edge. With optics designed for a tight focus, the system can machine holes any size larger than 3 μm in diameter. Unlike a standard electrical discharge machining drill, the new laser system allows micro-machining of non-conductive materials such as: amorphous boron and silicon carbide gaskets, diamond, oxides, and other materials including organic materials such as polyimide films (i.e., Kapton). An important feature of the new system is the use of gas-tight or gas-flow environmental chambers which allow the laser micro-machining to be done in a controlled (e.g., inert gas) atmosphere to prevent oxidation and other chemical reactions in air sensitive materials. The gas-tight workpiece enclosure is also useful for machining materials with known health risks (e.g., beryllium). Specialized control software with a graphical interface enables micro-machining of custom 2D and 3D shapes. The laser-machining system was designed in a Class 1 laser enclosure, i.e., it includes laser safety interlocks and computer controls and allows for routine operation. Though initially designed mainly for machining of the diamond anvil cell gaskets, the laser-machining system has since found many other micro-machining applications, several of which are presented here.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF)
Grant/Contract Number:
NA0001974; FG02-99ER45775; AC02-06CH11357
OSTI ID:
1203737
Alternate ID(s):
OSTI ID: 1228680
Journal Information:
Review of Scientific Instruments, Vol. 86, Issue 7; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 59 works
Citation information provided by
Web of Science

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Ultrahigh-pressure isostructural electronic transitions in hydrogen journal September 2019
A CO 2 laser heating system for in situ high pressure-temperature experiments at HPCAT journal August 2018
In situ x-ray diffraction study of polyamorphism in H 2 O under isothermal compression and decompression journal June 2019
High pressure-induced distortion in face-centered cubic phase of thallium journal September 2016
Experimental evidence of low-density liquid water upon rapid decompression journal February 2018
Room-temperature compression and equation of state of body-centered cubic zirconium journal December 2019
High-pressure studies with x-rays using diamond anvil cells journal November 2016
Venture into Water’s No Man’s Land: Structural Transformations of Solid H 2 O under Rapid Compression and Decompression journal November 2018
Postaragonite phases of CaCO 3 at lower mantle pressures journal January 2018
Probing disorder in high-pressure cubic tin (IV) oxide: a combined X-ray diffraction and absorption study journal May 2019
Discovery of Cu 3 Pb journal September 2018
Postaragonite phases of CaCO3 at lower mantle pressures text January 2018
In situ quantitative study of plastic strain-induced phase transformations under high pressure: Example for ultra-pure Zr journal September 2020
Spin Quenching Assisted by a Strongly Anisotropic Compression Behavior in MnP text January 2017
Bond strengthening in dense H2O and implications to planetary composition preprint January 2019
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