Complex oxide with negative thermal expansion for producing ceramic matrix composites with invar effect

Elena S. Dedova, Mariya U. Pertushina, Anton I. Kondratenko, Mikhail V. Gorev, Sergey Nikolaevich Kul'kov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The article investigates the phase composition of (Al2O3-20 wt % ZrO2)-ZrW2O8 ceramic composites obtained by cold-pressing and sintering processes. Using X-ray analysis it has been shown that composites mainly have monoclinic modification of zirconium dioxide and orthorhombic phase of aluminum oxide. After adding zirconium tungstate the phase composition of sintered ceramics changes, followed by the formation of tungsten-aluminates spinel such as Alx(WOy)z. It has been shown that thermal expansion coefficient of material decreases approximatly by 30%, as compared with initial ceramics.

Original languageEnglish
Title of host publicationAdvanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
Subtitle of host publicationProceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
PublisherAmerican Institute of Physics Inc.
Volume1783
ISBN (Electronic)9780735414457
DOIs
Publication statusPublished - 10 Nov 2016
EventInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016 - Tomsk, Russian Federation
Duration: 19 Sep 201623 Sep 2016

Conference

ConferenceInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
CountryRussian Federation
CityTomsk
Period19.9.1623.9.16

Keywords

  • ceramics
  • negative thermal expansion coefficient
  • phase transformation
  • spinel
  • zirconium tungstate

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Complex oxide with negative thermal expansion for producing ceramic matrix composites with invar effect'. Together they form a unique fingerprint.

  • Cite this

    Dedova, E. S., Pertushina, M. U., Kondratenko, A. I., Gorev, M. V., & Kul'kov, S. N. (2016). Complex oxide with negative thermal expansion for producing ceramic matrix composites with invar effect. In Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016 (Vol. 1783). [020037] American Institute of Physics Inc.. https://doi.org/10.1063/1.4966330