Evidence map›Paper›PMID 37587249›Full record

ArticleScientific reports2023

Effects of transition metal carbide dispersoids on helium bubble formation in dispersion-strengthened tungsten.

Ashrakat Saefan, Xingyu Liu, Eric Lang, Levko Higgins, Yongqiang Wang, Osman El-Atwani, Jean Paul Allain, Xing Wang

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Ashrakat SaefanKen and Mary Alice Lindquist Department of Nuclear Engineering, Pennsylvania State University, University Park, PA, 16802, USA.
Xingyu LiuDepartment of Materials Science and Engineering, Pennsylvania State University, University Park, PA, 16802, USA.
Eric LangDepartment of Nuclear, Plasma and Radiological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
Levko HigginsKen and Mary Alice Lindquist Department of Nuclear Engineering, Pennsylvania State University, University Park, PA, 16802, USA.
Yongqiang WangMaterials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
Osman El-AtwaniMaterials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
Jean Paul AllainKen and Mary Alice Lindquist Department of Nuclear Engineering, Pennsylvania State University, University Park, PA, 16802, USA.
Xing WangKen and Mary Alice Lindquist Department of Nuclear Engineering, Pennsylvania State University, University Park, PA, 16802, USA. xvw5285@psu.edu.

Funding

U.S. Department of Energy 89233218CNA000001U.S. Department of Energy DE-SC0014267
6 · The paper itself

Abstract

The formation of helium bubbles and subsequent property degradation poses a significant challenge to tungsten as a plasma-facing material in future long-pulse plasma-burning fusion reactors. In this study, we investigated helium bubble formation in dispersion-strengthened tungsten doped with transition metal carbides, including TaC, ZrC, and TiC. Of the three dispersoids, TaC exhibited the highest resistance to helium bubble formation, possibly due to the low vacancy mobility in the Group VB metal carbide and oxide phases. Under identical irradiation conditions, large helium bubbles formed at grain boundaries in tungsten, while no bubbles were observed at the interfaces between the carbide dispersoid and tungsten matrix. Moreover, our results showed the interfaces could suppress helium bubble formation in the nearby tungsten matrix, suggesting that the interfaces are more effective in trapping helium as tiny clusters. Our research provided new insights into optimizing the microstructure of dispersion-strengthened tungsten alloys to enhance their performance.

Identifiers

PMID37587249
PMCPMC10432386

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.