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A method for site-specific and cryogenic specimen fabrication of liquid/solid interfaces for atom probe tomography

Journal Article · · Ultramicroscopy
 [1];  [2];  [1];  [2];  [1]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Energy and Environment Directorate
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Earth and Biological Sciences Directorate

In this paper, a site-specific, cryogenic, focused ion beam (FIB) method is presented for the preparation of atom probe tomography (APT) specimens from a frozen liquid/solid interface. As a practical example, the interface between water and a corroded boroaluminosilicate glass has been characterized by APT for the first time. The water/glass interface is preserved throughout specimen preparation by plunge freezing the corroding glass particles with the corrosion solution into slush nitrogen. Site-specific specimen preparation is enabled through a new approach to extract and mount a small volume of material using a cryogenically cooled FIB stage and micromanipulator. The prepared APT specimens are subsequently transferred from the FIB to APT under cryogenic and high-vacuum conditions using a novel FIB/APT transfer shuttle and home-built environmental transfer hub attached to the APT system. Particular focus is given to the technical methods for specimen fabrication under cryogenic conditions. Finally, persistent challenges are discussed in addition to future opportunities for this new specimen preparation method.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Center for Performance and Design of Nuclear Waste Forms and Containers (WastePD); Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
Grant/Contract Number:
AC05-76RL01830; SC0016584
OSTI ID:
1463336
Alternate ID(s):
OSTI ID: 1600933
OSTI ID: 1692161
OSTI ID: 23117987
OSTI ID: 1490238
Report Number(s):
PNNL-SA--133479; PII: S0304399118301153
Journal Information:
Ultramicroscopy, Journal Name: Ultramicroscopy Vol. 194; ISSN 0304-3991
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (6)

Ti and its alloys as examples of cryogenic focused ion beam milling of environmentally-sensitive materials text January 2019
Atom Probe Tomography for 3D Structural and Chemical Analysis of Individual Proteins journal May 2019
Ti and its alloys as examples of cryogenic focused ion beam milling of environmentally-sensitive materials journal February 2019
The Laplace Project: An integrated suite for preparing and transferring atom probe samples under cryogenic and UHV conditions journal December 2018
Cryogenic specimens for nanoscale characterization of solid–liquid interfaces journal December 2019
Atom Probe Tomography for Catalysis Applications: A Review journal July 2019

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