Fine-grained BaTiO3-MgFe2O4 composites prepared by a Pechini-like process

Subscribe to access this work and thousands more

Abstract.

J. Alloys Compd. 368 (2015) 141147. (DOI: 10.1016/j.jallcom.2015.03.082).

The synthesis of BaTiO3-MgFe2O4 composite powders by a Pechini-like one-pot process and resulting ceramic bodies is described herein. Phase formation during the decomposition of homogenous (Ba,Ti,Fe,Mg)-gels was monitored up to 1200 °C. Composite powders consisting of BaTiO3 and MgFe2O4 were obtained after decomposition at 700 °C for 1 h resulting in crystallite sizes of about 10 nm. The shrinkage and sintering behaviour of compacted powders were examined. Sintering at > 1200 °C leads to the formation of hexagonal BaTiO3 only for composites with a MgFe2O4 content of > 30 wt.%. SEM images of ceramic bodies reveal that the MgFe2O4 particles are surrounded by BaTiO3 crystallites. Magnetic measurements of both powders and corresponding ceramic bodies show ferrimagnetic behaviour with low coercivities. At high-field and low temperatures an additional small paramagnetic contribution was observed which increases with decreasing MgFe2O4 content and should be considered by the calculation of the saturation magnetization.
Finally, the frequency dependent variation of the relative permittivities of the composites was investigated.

Subscribe to access this work and thousands more
Save
Need help with your academic research project/paper, technical or creative writing? Hire our expert researchers and writers. Click Here to Submit a Writing Request
Overall Rating

0

5 Star
(0)
4 Star
(0)
3 Star
(0)
2 Star
(0)
1 Star
(0)
APA

Koferstein, R. (2021). Fine-grained BaTiO3-MgFe2O4 composites prepared by a Pechini-like process. Afribary. Retrieved from https://afribary.com/works/fine-grained-batio3-mgfe2o4-composites-prepared-by-a-pechini-like-process

MLA 8th

Koferstein, Roberto "Fine-grained BaTiO3-MgFe2O4 composites prepared by a Pechini-like process" Afribary. Afribary, 04 Aug. 2021, https://afribary.com/works/fine-grained-batio3-mgfe2o4-composites-prepared-by-a-pechini-like-process. Accessed 28 Nov. 2021.

MLA7

Koferstein, Roberto . "Fine-grained BaTiO3-MgFe2O4 composites prepared by a Pechini-like process". Afribary, Afribary, 04 Aug. 2021. Web. 28 Nov. 2021. < https://afribary.com/works/fine-grained-batio3-mgfe2o4-composites-prepared-by-a-pechini-like-process >.

Chicago

Koferstein, Roberto . "Fine-grained BaTiO3-MgFe2O4 composites prepared by a Pechini-like process" Afribary (2021). Accessed November 28, 2021. https://afribary.com/works/fine-grained-batio3-mgfe2o4-composites-prepared-by-a-pechini-like-process