Study of Phase Decomposition in ZrW 2 O 8 | Zendy

Fedorova Anna | Zendy; Kämpf Timo | Zendy; Scheffler Michael | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

Study of Phase Decomposition in ZrW 2 O 8

Author(s) -

Fedorova Anna,

Kämpf Timo,

Scheffler Michael

Publication year - 2016

Publication title -

advanced engineering materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.938

H-Index - 114

eISSN - 1527-2648

pISSN - 1438-1656

DOI - 10.1002/adem.201600035

Subject(s) - materials science , decomposition , thermal decomposition , phase (matter) , tungstate , phase transition , composite number , zirconium , negative thermal expansion , composite material , analytical chemistry (journal) , thermodynamics , thermal expansion , metallurgy , chemistry , chromatography , physics , organic chemistry

This paper describes the decomposition behavior of zirconium tungstate (ZrW 2 O 8 ) materials above 1 050 K. The materials are synthesized according to a sol–gel‐route and a solid‐state route, and have been characterized with respect to their crystallographic properties. Apart from the initial phase and decomposition products ZrO 2 and WO 3 , the additional phase γ‐ZrW 2 O 8 is found, which results from a phase transition initiated by local pressures higher than 200 MPa. Residual stresses induced by the thermal mismatch between different phases within the composite material are found to be 1.15 GPa(ZrO 2 /ZrW 2 O 8 ) and 1.26 GPa (WO 3 /ZrW 2 O 8 ). Obtained stress values are high enough to induce this transition.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research