In:
Journal of the American Ceramic Society, Wiley, Vol. 103, No. 4 ( 2020-04), p. 2491-2498
Abstract:
Transition metal (TM = Mn, Fe, Co, and Ni)‐doped Ba 0.85 Ca 0.15 Ti 0.9 Zr 0.1 O 3 (BCZT) lead‐free ceramics with excellent optical and magnetic properties are synthesized via a solid‐state reaction method. The effects of TM elements on the sintering, structure, optical, and magnetic properties of BCZT ceramics are investigated in detail. Structural phase transition from the coexistence of rhombohedral and tetragonal phases to a single rhombohedral phase is observed owing to grain refinement. A narrow band gap of 1.68 eV is achieved in the Co‐doped BCZT. The optical absorption of TM‐doped BCZT is enhanced, which is ascribed to the molecular orbital rearrangement caused by lattice distortion. Moreover the magnetic behaviors of TM‐doped BCZT are observed. The Fe‐doped BCZT presents the most evident ferromagnetism, resulting from the exchange coupling interaction between the Fe 3+ ions and oxygen vacancies. These results provide additional insight into the use of TM‐doped BCZT lead‐free ferroelectric ceramics for various applications.
Type of Medium:
Online Resource
ISSN:
0002-7820
,
1551-2916
Language:
English
Publisher:
Wiley
Publication Date:
2020
detail.hit.zdb_id:
2008170-4
detail.hit.zdb_id:
219232-9
Permalink