Preparing TEM Specimens and Atom Probe Tips by Laser Machining

Rottwinkel, Boris; Kreutzer, André; Spott, Henry; Krause, Michael; Schusser, Georg; Höche, Thomas

doi:10.1017/s1551929519001020

Cited by 5 publications

(2 citation statements)

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“…Outer surface of a shard from a BaO-SrO-ZnO-SiO 2 glass ceramic investigated using nano-CT after crushing a bulk sample characteristics of the laser process and the entire sample handling including the final analysis should be the development guideline. 26,27,28,29,30 One class of materials which would particularly benefit from such developments in the area of sample preparation for nano-CT are oxidic materials such as glasses, glass ceramics or ceramics. Up to now, samples are often prepared as a powder where suitable sample pieces are selected and mounted to a support (small tube, needle, dowel etc.)…”

Section: Introductionmentioning

confidence: 99%

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Laser‐based sample preparation for high‐resolution X‐ray‐computed tomography of glasses and glass ceramics

Krause

Thieme

Schusser

et al. 2022

Journal of Microscopy

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X-ray-computed tomography with sub-micron resolution (nano-CT) is one of the most useful techniques to examine the 3D microstructure of materials down to voxel sizes 10 nm. However, since size and shape of samples have considerable influence on acquisition time and data quality, adapted and universally applicable workflows are needed. Three novel workflows for sample preparation using ultra-short pulsed lasers are presented which allow for reproducible fabrication, safe extraction and mounting of samples. Their application potential is illustrated via nano-CT measurements of glass ceramics as well as a laser-modified glass. Since the according sample geometries take also the requirements of other analytical techniques such as transmission electron microscopy into account, samples prepared according to the new workflows can be furthermore seen as a starting point for correlative microstructural analyses involving multiple techniques.

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Section: Introductionmentioning

confidence: 99%

“…However, milling rectangular trenches via expensive ultra‐short pulsed lasers does not exploit the full potential of laser micromachining. In fact, novel workflows tailored to the characteristics of the laser process and the entire sample handling including the final analysis should be the development guideline 26,27,28,29,30 …”

Section: Introductionmentioning

confidence: 99%