Crystal structure, defects, and interfaces
bright-field, dark-field, HRTEM, HAADF-STEM
Material Analysis · Microscopy & Imaging
Characterise crystal structure, defects, and interfaces, particle size and lattice spacing, and nanoscale elemental or chemical distribution using a scope agreed around your sample and decision.
Why this test
Lorentz Transmission Electron Microscopy is selected when the project needs defensible information on crystal structure, defects, and interfaces, particle size and lattice spacing, or nanoscale elemental or chemical…
bright-field, dark-field, HRTEM, HAADF-STEM
diffraction, tomography, EDS, or EELS
Lorentz imaging for magnetic structures
Choose the scope
The measurement mode, preparation route and reporting depth depend on what you need to learn from the sample.
crystal structure, defects, and interfaces
particle size and lattice spacing
nanoscale elemental or chemical distribution
Common outputs
Fields, measurement conditions, processing and file formats are confirmed before work begins.
TEM/STEM image series reported with the agreed units, sample reference and measurement conditions.
Selected-area or nanobeam diffraction supplied in a labelled format suitable for direct sample or condition comparison.
Optional EDS/EELS maps and lattice measurements provided with the processing basis and quality checks agreed during technical review.
Method-specific images included when selected in the confirmed reporting scope.
Sample requirements
Provide representative, clearly labelled samples and identify the region, feature or comparison that matters.
| Suitable sample or input | Submission requirement | Planning note |
|---|---|---|
| Powder / particles | Provide a dry, homogeneous and clearly labelled sample in a sealed container. | Exact mass and any drying or dispersion step are confirmed after technical review. |
| Film / coating | Provide the coated substrate or a flat film with the test surface and coating side clearly marked. | State the substrate, nominal thickness and whether sectioning or mounting is permitted. |
| Test coupon / specimen | Provide labelled specimens prepared to the agreed geometry, orientation and surface condition. | Confirm the applicable standard, dimensions, loading direction and number of replicates. |
Region of interest: include a marked image, sketch or reference when the target feature is localised.
Handling: declare hazardous, magnetic, volatile, moisture-sensitive, beam-sensitive or temperature-controlled material before dispatch.
Questions and answers
Short answers to issues that can change preparation, scope or interpretation.
Provide powder / particles, film / coating, test coupon / specimen as applicable. Exact quantity, dimensions and preparation are confirmed during technical review.
The final method, preparation and reporting scope are confirmed after the sample and project objective have been reviewed.
Typical turnaround is 6 working days after sample acceptance and method confirmation.
Preparation is demanding and local. Beam damage, thickness, overlap, and projection effects can complicate interpretation.
Configure the service