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

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 Al_x(WO_y)_z. It has been shown that thermal expansion coefficient of material decreases approximatly by 30%, as compared with initial ceramics.

Original language	English
Title of host publication	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
Subtitle of host publication	Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
Publisher	American Institute of Physics Inc.
Volume	1783
ISBN (Electronic)	9780735414457
DOIs	https://doi.org/10.1063/1.4966330
Publication status	Published - 10 Nov 2016
Event	International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016 - Tomsk, Russian Federation Duration: 19 Sep 2016 → 23 Sep 2016

Conference

Conference	International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
Country	Russian Federation
City	Tomsk
Period	19.9.16 → 23.9.16

Keywords

ceramics
negative thermal expansion coefficient
phase transformation
spinel
zirconium tungstate

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.4966330

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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

Complex oxide with negative thermal expansion for producing ceramic matrix composites with invar effect. / Dedova, Elena S.; Pertushina, Mariya U.; Kondratenko, Anton I.; Gorev, Mikhail V.; Kul'kov, Sergey Nikolaevich.

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 American Institute of Physics Inc., 2016. 020037.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Dedova, ES, Pertushina, MU, Kondratenko, AI, Gorev, MV & Kul'kov, SN 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., International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016, Tomsk, Russian Federation, 19.9.16. https://doi.org/10.1063/1.4966330

Dedova ES, Pertushina MU, Kondratenko AI, Gorev MV, Kul'kov SN. 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. American Institute of Physics Inc. 2016. 020037 https://doi.org/10.1063/1.4966330

Dedova, Elena S. ; Pertushina, Mariya U. ; Kondratenko, Anton I. ; Gorev, Mikhail V. ; Kul'kov, Sergey Nikolaevich. / Complex oxide with negative thermal expansion for producing ceramic matrix composites with invar effect. 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 American Institute of Physics Inc., 2016.

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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.",

keywords = "ceramics, negative thermal expansion coefficient, phase transformation, spinel, zirconium tungstate",

author = "Dedova, {Elena S.} and Pertushina, {Mariya U.} and Kondratenko, {Anton I.} and Gorev, {Mikhail V.} and Kul'kov, {Sergey Nikolaevich}",

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AU - Dedova, Elena S.

AU - Pertushina, Mariya U.

AU - Kondratenko, Anton I.

AU - Gorev, Mikhail V.

AU - Kul'kov, Sergey Nikolaevich

PY - 2016/11/10

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N2 - 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.

AB - 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.

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KW - phase transformation

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KW - zirconium tungstate

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