# Oxide-dispersion driven phase and microstructural evolution with an analytical framework for critical current density in synergistically yttria-titania doped Nb3Sn

https://mdr.nims.go.jp/datasets/d43334be-a97f-4c98-abb9-7ccfe757e823

## File

- [Materials&Design_v268_2026_116577_(Nitin_Y-doped-Nb3Sn)_compressed.pdf](https://mdr.nims.go.jp/filesets/b6625c14-6084-481d-bb19-b98f26f307a5/download) ([Detail](https://mdr.nims.go.jp/filesets/b6625c14-6084-481d-bb19-b98f26f307a5.md))

## Id

d43334be-a97f-4c98-abb9-7ccfe757e823

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-07-16T04:42:19.184612Z

## Updated at

2026-07-16T05:48:10.139746Z

## Published at

2026-07-16T07:30:16.977761Z

## Doi



## First published url

https://doi.org/10.1016/j.matdes.2026.116577

## Date published

2026-07-13

## Recorded date published

2026-8

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Oxide-dispersion driven phase and microstructural evolution with an analytical
    framework for critical current density in synergistically yttria-titania doped
    Nb3Sn
  title_type: original
  lang: en

## Description

- description: This study presents a heat treatment–doping effect of individual and
    synergic nano-oxide Y2O3 and TiO2 dispersoids on Nb3Sn towards the interrelation
    among phase, microstructure and properties. Synergic doping of Y2O3 and TiO2 to
    Nb3Sn resulted in Tc of 18 K after annealing at 400 °C for 9 h. A lower Tc of
    16 K was observed for as-sintered pristine Nb3Sn. Pristine samples were susceptible
    to heat treatment, indicated by the wide transition width of 2 K in Tc. A high
    overall Jc of 5.17 × 105 A/cm2 (10 K, 2 T) was observed for Y2O3 and TiO2 co-doped
    Nb3Sn sample annealed at 400 °C for 9 h compared to the overall Jc of 2.3 × 105
    A/cm2 for as-sintered. Solutionized and quenched samples showed poor overall Jc
    performance, with the lowest Jc of 9.1 × 104 A/cm2 for the pristine. A higher
    NbO phase fraction led to a degraded overall Jc performance in TiO2 doped sample.
    A superior overall  performance for co-doped sample was due to the synergic presence
    of Y2O3 and TiO2 at grain boundaries of Nb3Sn which acted as blanket to restrict
    the NbO formation. An analytical model to predict the microstructurally governed
    overall Jc performance at different applied fields was developed.
  description_type: abstract
  lang: und

## Creator

- name: Nitin Srivastava
  role: author
- name: Bhargav R. Sudhalkar
  role: author
- name: Soupitak Pal
  role: author
- name: Alok Singh
  role: author
  orcid: https://orcid.org/0000-0001-5515-8305
  organization: National Institute for Materials Science
- name: Nobuya Banno
  role: author
  orcid: https://orcid.org/0000-0002-7141-541X
  organization: National Institute for Materials Science
- name: Sangeeta Santra
  role: author

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: Nb3Sn
  schema: not_defined
- subject: yttria
  schema: not_defined
- subject: titania
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by-nc-nd/4.0/
  date_licensed: 2026-07-09

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Materials & Design
  issn: '02641275'
  volume: '268'
  article_number: '116577'

## Conference



## Related item



## Funding



## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: b6625c14-6084-481d-bb19-b98f26f307a5
  filename: Materials&Design_v268_2026_116577_(Nitin_Y-doped-Nb3Sn)_compressed.pdf
  content_type: application/pdf
  size: 5691584
  md5: 6879864ba061980a6503393ede0a1eb0

## Thumbnail

fileset_id: b6625c14-6084-481d-bb19-b98f26f307a5
filename: Materials&Design_v268_2026_116577_(Nitin_Y-doped-Nb3Sn)_compressed.pdf