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Oxygen

Electron Backscatter Diffraction (EBSD)

Oxygen Orientation Map

Oxygen Phase Map

Orientation and phase maps of a mineral sample containing quartz (SiO2) (green), olivine ((Mg, Fe)2SiO4) (red) and enstatite (MgSiO3) (yellow).

Sample courtesy of K. Kunze, Eidgenössische Technische Hochschule Zürich



Zinc Oxide

Zinc Oxide microfibers
ZnO microfibers with periodic junctions with 6.2 µm spacing

Microfiber anisotropic growth model
Microfiber anisotropic growth model

EBSD measurements and pole figure analysis for Zinc Oxide
EBSD measurements and pole figure analysis

Photoluminescence micrograph of fibers
Photoluminescence micrograph for the type of fibers shown to the left


L. Huang, S. Wright, S. Yang, D. Shen, B. Gu and Y. Du (2004). “ZnO well-faceted fibers with periodic junctions” Journal of Physical Chemistry B 108: 19,901-19,903.

Magnesium Aluminate Spinel

Magnesium Aluminate Spinel orientation map
Orientation map overlaid on an intensity map based on EBSD pattern quality on a hot-pressed MgAl2O4

EDS spectra from a hot-pressed Magnesium Aluminate Spinel
EDS spectra from a hot-pressed MgAl2O4 sample and a hot-pressed and annealed sample

 

Ilmenite Sample
Ilmenite Sample
  • Simultaneously collected Energy Dispersive Spectroscopy (EDS) and Electron Backscatter Diffraction (EBSD) using an Octane Elite Silicon Drift Detector and Hikari Super EBSD camera with APEX™ Software
  • Data collected from a sample from Saint Urbain Anorthosite Massif in Quebec, Canada
  • System contains economic deposits of titanium and iron in Fe/Ti oxide minerals
  • Montage functionality in APEX enables large area data collection
  • Chi-Scan™ is used to differentiate the crystallographically similar Ilmenite with exsolution lamellae of hematite
  • EDAX tools used to measure grain size and shape of each constituent phase
Three calcium carbonate polymorphs in Unio Pictorum (Painter's Mussel) shell
Three calcium carbonate polymorphs in Unio Pictorum (Painter's Mussel) shell
  • Map collected with a Hikari Super EBSD Analysis System with TEAM™ EBSD software
  • Shown: Phase and IPF maps on Image Quality (left) and PRIAS™ center map showing orientation contrast (top)
  • CaCO3 typically occurs in two polymorphs: calcite and aragonite
  • Occasionally a 3rd polymorph can be observed, vaterite, which may for example form as initial mineral deposit in shells to repair damage
  • Vaterite is a metastable phase, which is highly susceptible to beam damage and requires a gentle electron beam for successful analysis