Effect of composition changes on properties and defect structure of crystalline Sm-doped ZrO2

• Authors: HARTMANOVÁ Mária; KUBEL František; BURŠÍKOVÁ Vilma; JERGEL M.; NAVRÁTIL Vladislav; LOMONOVA E. E.; NAVRÁTIL Karel; KUNDRACIK F.; KOSTI I.
• Year of publication: 2007
• Type: Peer-reviewed scientific article
• Magazine / Source: Russian Journal of Electrochemistry
• MU Faculty or unit: Faculty of Science
• Field: Solid matter physics and magnetism
• Keywords: crystals;ZrO2;Sm2O3;polymorphous structure;pyrochlore phase;electrical conductivity;microhardness;elastic modulus;aborption coefficient;refractive index
• Description: Polymorphous structure, electrical conductivity, absorption coefficient, refractive index, and mechanical characteristics of crystalline system ZrO2 + x Sm2O3 is investigated. Vickers microhardness is investigated by the well-known quasi-static indentation method. Plastic microhardness and the effective elastic modulus are studied by the depth-sensing indentation technique. Special attention is devoted to the ordered defect fluorite structure, pyrochlore phase Sm2Zr2O7, observed for x = 43 mol %. Potential applications of the investigated system are discussed.

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