PPubMed21 Oct 2015Cited 2×

Are X-rays the key to integrated computational materials engineering? Integrated computational materials engineering

Gene Ice

Abstract

An IUCrJ paper by Levine et al. highlights the promise and challenge of 3D X-ray structural microscopy as a unique tool to test predictive models of materials behavior.

A figure from Are X-rays the key to integrated computational materials engineering? Integrated computational materials engineering — fig. from the paper

§ The Valyu brief

The paper, in five minutes

Read from the full text via Valyu Contents

X‑ray structural microscopy can nondestructively map 3‑D strain tensors, enabling direct tests of computational materials models.

What’s new

i.Highlights the promise and challenges of 3‑D X‑ray structural microscopy for testing predictive materials models.
ii.Demonstrates full strain‑tensor measurement at seven points in copper vias using differential aperture microscopy.
iii.Shows the need for advanced detectors, optics, and software to achieve sub‑micrometre 3‑D strain maps.
iv.Provides a roadmap for scaling nondestructive 3‑D strain mapping to arbitrary materials.

How they did it

The study used specialized polychromatic microdiffraction tools, including differential aperture microscopy on APS beamline 34‑ID‑E, combined with knowledge of the copper via architecture to measure the full strain tensor at seven well‑defined locations, reporting uncertainties for each measurement.

What they found

Full strain tensor measured at 7 points in copper through‑Si vias (Levine et al., 2015).
Earlier full strain‑tensor map captured ~1 600 voxels in bent single‑crystal silicon (Larson et al., 2008).
Grain‑orientation map of aluminium with >300 000 voxels demonstrated (Budai, 2014).

Caveats

✕Measurements were limited to a favorable system and only seven points, not full 3‑D volumes.
✕Current instrumentation lacks the speed, precision, and detector format needed for routine sub‑micrometre strain mapping.
✕Requires development of ultra‑fast, single‑photon‑counting detectors, high‑precision optics, special undulators, and advanced calibration software.

§ The Valyu brief

Reading the full paper and taking notes. This takes a few seconds…

§ Ask this paper

Ask a question about this paper

Valyu reads the full text and answers from what the paper actually says.

§ Related work in other archives

Similar papers in all four archives

The same idea searched in arXiv, PubMed, bioRxiv and chemRxiv at once, so a method can lead you to where it is being applied.

AarXiv4 found

PPubMed4 found

BbioRxiv4 found

CchemRxiv4 found

Searching the other archives…