# Mutual phase stability between kaolinite-derived hexacelsian and zirconia in a mixed system

https://mdr.nims.go.jp/datasets/8bd10283-c2bb-47a1-99cb-a13d4773c955

## File

- [2_BAS_YSZ_GO.docx](https://mdr.nims.go.jp/filesets/de05d1b1-b785-4999-a4e1-ffe23fbabe40/download) ([Detail](https://mdr.nims.go.jp/filesets/de05d1b1-b785-4999-a4e1-ffe23fbabe40.md))

## Id

8bd10283-c2bb-47a1-99cb-a13d4773c955

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-09-22T00:37:10.259818Z

## Updated at

2025-09-22T01:36:41.358964Z

## Published at

2026-09-01T23:25:12.805874Z

## Doi

https://doi.org/10.48505/nims.5773

## First published url

https://doi.org/10.1021/acs.inorgchem.5c03060

## Date published

2025-09-15

## Recorded date published

2025-9-15

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Mutual phase stability between kaolinite-derived hexacelsian and zirconia
    in a mixed system
  title_type: original
  lang: en

## Description

- description: This study demonstrates that the phase stability of a two-dimensional
    aluminosilicate can be achieved through the presence of an unreacted coexisting
    component. Specifically, the mutual phase stability and chemical inertness of
    hexacelsian—a metastable phase of BaAl2Si2O8 with a layered structure—and yttria-stabilized
    zirconia (YSZ) were systematically investigated across a wide temperature range
    up to 1600°C, using solid-state reactions of kaolinite and BaCO3 with or without
    YSZ. Despite its metastable nature, hexacelsian remained intact without transforming
    into celsian—the stable BaAl2Si2O8 phase without a layered structure—under prolonged
    heating when co-present with ZrO2. Additionally, while YSZ alone shows both tetragonal
    and monoclinic ZrO2 phases upon calcination, only the tetragonal phase is retained
    when calcined in the presence of hexacelsian. This mutual stability is supported
    by complementary analyses—including X-ray diffraction, scanning electron microscopy,
    and thermal analysis—which revealed the formation of low-crystalline hexacelsian
    at 800°C, preceding the appearance of fully crystalline hexacelsian and the formation
    of calcined products in the kaolinite–YSZ and BaCO3–YSZ mixtures. These results
    offer insights into the design and functionality of thermally stable two-dimensional
    aluminosilicates in multiphase systems.
  description_type: abstract
  lang: eng

## Creator

- name: Shingo Machida
  role: author
  organization: JFCC
- name: Masaya Suzuki
  role: author
  organization: JFCC
- name: Toshimichi Shibue
  role: author
  organization: Waseda Univ
- name: Gaku Okuma
  role: author
  orcid: https://orcid.org/0000-0002-2997-9166
  organization: National Institute for Materials Science
  department: Research Center for Structural Materials/Materials Manufacturing Field/Ceramic
    Matrix Composites Group
- name: Daiki Takeda
  role: author
  organization: Industrial Research Institute of Ishikawa

## Contact agent



## Publisher

organization: American Chemical Society

## Managing organization



## Keyword

- subject: YSZ
  schema: not_defined

## Rights

- description: This document is the Accepted Manuscript version of a Published Work
    that appeared in final form in Inorganic Chemistry, copyright © 2025 American
    Chemical Society after peer review and technical editing by the publisher. To
    access the final edited and published work see https://doi.org/10.1021/acs.inorgchem.5c03060.
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2025-09-02
end_date: 2026-09-02

## Journal

- title: INORGANIC CHEMISTRY
  issn: '00201669'
  volume: '64'
  issue: '36'
  start_page: 18479
  end_page: 18489

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## Specimen



## Chemical composition



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## Fileset

- id: de05d1b1-b785-4999-a4e1-ffe23fbabe40
  filename: 2_BAS_YSZ_GO.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 2672395
  md5: bc253fd36d16c9bf72071ee8e8ca33ff

## Thumbnail

fileset_id: de05d1b1-b785-4999-a4e1-ffe23fbabe40
filename: 2_BAS_YSZ_GO.docx