In crystalline materials the atoms are arranged to repeat regularly in space.
- Polycrystalline materials consist of an aggregate of single crystal grains. Many important engineering materials and minerals are polycrystalline.
- Microstructure refers to the assemblage of grains and other constituents such as pores and precipitates.
- Electron backscatter diffraction is a technique for the scanning electron microscope which allows crystal orientations to be measured.
- Maps of crystal orientation can be collected using EBSD. They remove any ambiguity regarding the recognition of grains and grain boundaries in the sample.
- The grains in polycrystalline material are usually not randomly oriented, and crystallographic texturing can confer special properties on materials.
- EBSD is as an important technique for texture analysis because it allows the relation between texture and microstructure to be studied.
- Grain boundaries are the interfaces between grains. Boundaries formed between grains with particular orientation relationships to one another can have desirable properties.
- EBSD can characterize these boundaries and measure the distribution of various boundary types in a sample.
- EBSD is a technique for microstructural analysis.