掺钼钛酸锶钡纳米粉体的微观结构和介电性能

IF 2.9 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Technology Pub Date : 2022-11-24 DOI:10.1080/10667857.2022.2151685

Kiflom Gebremedhn Kelele, H. Murthy, R. Balachandran, Aschalew Tadesse, K. Tan

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引用次数: 1

摘要

摘要:本研究的目的是研究钛酸锶钡(BST)的介电性能与掺杂钼的BST的介电性能有何不同。采用慢速注射溶胶-凝胶技术。在BST晶格中加入Mo6+离子使BST的平均晶粒尺寸从19.35 nm减小到17.84 nm。同样，在BST结构中加入Mo后，平均粒径从26.02 nm一路减小到18.58 nm。最终，BST的介电常数升高，在1 MHz时最大值为946.3，而BST的介电常数为233.8。在BST中加入Mo后，介质损耗也降低了(0.15576 ~ 0.0356)。因此，BST中的Mo掺杂剂显著改变了其微结构和介电性能，使其适合多种应用。

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Microstructural and dielectric properties of Mo-doped barium strontium titanate nanopowders

ABSTRACT The goal of this research was to examine how the dielectric properties of barium strontium titanate (BST) differ from those of BST that has been doped with molybdenum. The slow injection sol-gel technique was used. The addition of Mo6+ ions into the lattice of BST caused reduction of the mean crystallite sizes of BST, from 19.35 nm to 17.84 nm. Similarly, the mean particle size decreased from 26.02 nm all the way to 18.58 nm following the addition of Mo within the BST structure. Ultimately, the dielectric constant of BST was elevated with a maximum value of 946.3 at 1 MHz as compared to the value of 233.8 for BST. After Mo was added to BST, a reduction in dielectric loss (0.15576 to 0.0356) was also attained. Because of this, the Mo dopant in BST has significantly altered its microstructural and dielectric properties, making it suitable for multiple applications.

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来源期刊

Materials Technology 工程技术-材料科学：综合

CiteScore

6.00

自引率

9.70%

发文量

105

审稿时长

8.7 months

期刊介绍： Materials Technology: Advanced Performance Materials provides an international medium for the communication of progress in the field of functional materials (advanced materials in which composition, structure and surface are functionalised to confer specific, applications-oriented properties). The focus is on materials for biomedical, electronic, photonic and energy applications. Contributions should address the physical, chemical, or engineering sciences that underpin the design and application of these materials. The scientific and engineering aspects may include processing and structural characterisation from the micro- to nanoscale to achieve specific functionality.