Download file (2.55MB)
Download as zip (2.42MB)

コレクション

引用

説明:

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.

権利情報:

• In Copyright
  

  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.

キーワード: YSZ

刊行年月日: 2025-09-15

出版者: American Chemical Society

掲載誌:

• INORGANIC CHEMISTRY (ISSN: 00201669) vol. 64 issue. 36 p. 18479-18489

研究助成金:

原稿種別: 著者最終稿 (Accepted manuscript)

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

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

関連資料:

その他の識別子:

連絡先:

更新時刻: 2025-09-22 10:36:41 +0900

MDRでの公開時刻: 2026-09-02 08:25:12 +0900