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 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 | |
| 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 |
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Keywords
- ceramics
- negative thermal expansion coefficient
- phase transformation
- spinel
- zirconium tungstate
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
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
}
TY - GEN
T1 - Complex oxide with negative thermal expansion for producing ceramic matrix composites with invar effect
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
Y1 - 2016/11/10
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.
KW - ceramics
KW - negative thermal expansion coefficient
KW - phase transformation
KW - spinel
KW - zirconium tungstate
UR - http://www.scopus.com/inward/record.url?scp=85006059632&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85006059632&partnerID=8YFLogxK
U2 - 10.1063/1.4966330
DO - 10.1063/1.4966330
M3 - Conference contribution
VL - 1783
BT - 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
PB - American Institute of Physics Inc.
ER -