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Electron backscatter diffraction from unpolished particulate specimens; examples of particle identification and application to inhalable mineral particulate identification

Bryan R. Bandli and Mickey E. Gunter
Electron backscatter diffraction from unpolished particulate specimens; examples of particle identification and application to inhalable mineral particulate identification
American Mineralogist (August 2012) 97 (8-9): 1269-1273

Abstract

By simply crushing mineral grains, suspending the powder in a liquid, and dispersing the suspension on a suitable substrate, it is possible to collect adequate compositional and structural information to identify an unknown phase using a scanning electron microscope (SEM) equipped with an energy-dispersive X-ray spectrometer (EDS) and an electron backscatter diffraction system (EBSD). This technique could have important applications in the identification of inhalable particulate material. A simple test is presented to show how SEM/EDS/EBSD data are used to accurately determine the identity of mineral particles. Individual EBSD patterns contain more useful structural information and can be collected and interpreted more quickly than individual selected-area electron diffraction patterns collected with a transmission electron microscope. A case study is presented as an example of how EBSD is able to determine the phase identity of a potentially asbestiform mineral.


ISSN: 0003-004X
EISSN: 1945-3027
Coden: AMMIAY
Serial Title: American Mineralogist
Serial Volume: 97
Serial Issue: 8-9
Title: Electron backscatter diffraction from unpolished particulate specimens; examples of particle identification and application to inhalable mineral particulate identification
Affiliation: University of Minnesota, Department of Geological Sciences, Duluth, MN, United States
Pages: 1269-1273
Published: 201208
Text Language: English
Publisher: Mineralogical Society of America, Washington, DC, United States
References: 13
Accession Number: 2012-079892
Categories: General mineralogy
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
Secondary Affiliation: University of Idaho, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201242
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