# Glass-forming ability of La2O3–Nb2O5 evaluated via thermophysical properties under microgravity

https://mdr.nims.go.jp/datasets/eb683e09-3336-4d1b-b3df-60988a716278

## File

- [s41526-025-00520-w.pdf](https://mdr.nims.go.jp/filesets/19c977ca-d60b-4ecf-beaa-9a0db012f279/download) ([Detail](https://mdr.nims.go.jp/filesets/19c977ca-d60b-4ecf-beaa-9a0db012f279.md))

## Id

eb683e09-3336-4d1b-b3df-60988a716278

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-11-07T07:11:29.741764Z

## Updated at

2025-11-10T07:30:38.461553Z

## Published at

2025-11-10T07:25:11.621918Z

## Doi



## First published url

https://doi.org/10.1038/s41526-025-00520-w

## Date published

2025-08-25

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Glass-forming ability of La2O3–Nb2O5 evaluated via thermophysical properties
    under microgravity
  title_type: original
  lang: en

## Description

- description: 'The La2O3–Nb2O5 binary system is a unique glass-forming system without
    conventional network former oxides, exhibiting two distinct glass-forming regions:
    La2O3-rich and Nb2O5-rich compositions. To evaluate its glass-forming ability,
    the temperature dependence of density, viscosity, and surface tension was measured
    using the electrostatic levitation furnace aboard the International Space Station
    (ISS–ELF). Melt density showed linear temperature dependence, and thermal expansion
    coefficients at 2000 K varied from 2.5 × 10−5 to 4.0 × 10−5 K−1. Substantial undercooling
    was observed for glass-forming compositions. Viscosity measurements above the
    melting point revealed that both La2O3-rich and Nb2O5-rich melts behave as fragile
    liquids. Activation energy derived from viscosity data was higher for glass-forming
    compositions. These results suggest that glass-forming ability can be assessed
    based on undercooling and activation energy across a wide compositional range,
    including non-glass-forming melts. The ISS–ELF experiments provide a valuable
    platform for understanding glass formation in systems inaccessible by terrestrial
    techniques.'
  description_type: abstract
  lang: und

## Creator

- name: Atsunobu Masuno
  role: author
  orcid: https://orcid.org/0000-0003-0667-9782
  organization: National Institute for Materials Science
- name: Chihiro Koyama
  role: author
- name: Shinji Kohara
  role: author
  orcid: https://orcid.org/0000-0001-9596-2680
  organization: National Institute for Materials Science
- name: Shunta Sasaki
  role: author
- name: Satoshi Izumi
  role: author
- name: Tomoharu Matsuya
  role: author
- name: Yuki Mikami
  role: author
- name: Kenta Yoshida
  role: author
- name: Hirotaka Kobayashi
  role: author
- name: Yuki Watanabe
  role: author
- name: Akitoshi Mizuno
  role: author
- name: Hirohisa Oda
  role: author
- name: Yuta Shuseki
  role: author
- name: Manabu Watanabe
  role: author
- name: Junpei T. Okada
  role: author
- name: Takehiko Ishikawa
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: glass
  schema: not_defined
- subject: liquid
  schema: not_defined
- subject: viscosity
  schema: not_defined
- subject: microgravity
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: npj Microgravity
  issn: '23738065'
  volume: '11'
  issue: '1'
  article_number: '58'

## Conference



## Related item



## Funding

- identifier: JP18K18928
  funder_name: Japan Society for the Promotion of Science
- identifier: JP20H05882
  funder_name: Japan Society for the Promotion of Science

## 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: 19c977ca-d60b-4ecf-beaa-9a0db012f279
  filename: s41526-025-00520-w.pdf
  content_type: application/pdf
  size: 1083625
  md5: 4ce33bf17fc14b0c3e611ca44777d173

## Thumbnail

fileset_id: 19c977ca-d60b-4ecf-beaa-9a0db012f279
filename: s41526-025-00520-w.pdf