Flexible ceramic composites for Magnetic field sensor Applications

IF 5.6 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS Ceramics International Pub Date : 2025-02-01 Epub Date: 2024-12-02 DOI:10.1016/j.ceramint.2024.12.025

Sajan Masih , Niyti Sharma , Sunil Kumar , Arshdeep Kaur , Shiffali Middha , P.D. Babu , Rubina Ghosh , P.N. Vishwakarma , Jaswinder Pal , Indu Sharma , Gurpreet Singh , Mandeep Singh , Arvind Kumar , Anupinder Singh

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Abstract

Thin flexible mats of IPN-Multiferroic perovskite were prepared using In-situ polymerization of PU/PMMA & (PrFeO₃)_0.24-(PbTiO₃)_0.76). X-ray diffraction peaks confirmed the presence of a tetragonal crystal phase (P4mm No. 99) of perovskite in a non-crystalline interpenetrating polymer network (IPN). The M-H hysteresis revealed the presence of magnetic ordering, whereas the P vs. E loop showed the presence of ferroelectric ordering in composites. The detection of elements present in the sample was done by energy-dispersive X-ray spectroscopy (EDS). The FTIR spectra of flexible mats revealed distinct transmittance peaks indicating various functional groups, including Si-OH, OH, methylene (CH2), urethane carbonyl (C=O), Si-O-Si, Fe-O, Ti-O, and PbO, thus, confirming their expected presence within the sample. The variation in weight loss and elongation at the break due to the incorporation of multiferroic ceramic directly manifested improved mechanical properties of pure IPN. The change in voltage with both frequency and magnetic field, attested for magneto-electric coupling in the prepared flexible sheets. We also observed the magnetoelectric coupling coefficient ‘α_ME’ by subjecting the sample to an AC magnetic field of 20 Oe, scanning frequencies from 150 Hz to 500Hz. The maximum value of ‘α_ME’ was obtained between 180 Hz and 220 Hz. At three different frequencies (180 Hz, 200 Hz, and 220 Hz), the DC magnetic field varied from 0 to 10.31 kOe. The maximum ME coefficient, 1.66 mVcm^-1Oe^-1, is obtained for x = 40 wt%. This predicts their capability to be used in various device applications including magnetic field sensors.

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磁场传感器用柔性陶瓷复合材料

聚氨酯/PMMA原位聚合法制备ipn -多铁钙钛矿柔性薄垫(PrFeO3) 0.24 - 0.76(铅))。x射线衍射峰证实了钙钛矿在非晶互穿聚合物网络（IPN）中的四方晶相（P4mm No. 99）的存在。M-H磁滞表明复合材料中存在磁有序，P - E磁滞表明复合材料中存在铁电有序。利用能量色散x射线光谱（EDS）对样品中的元素进行了检测。柔性垫的FTIR光谱显示出不同的透射峰，显示出不同的官能团，包括Si-OH、OH、亚甲基（CH2）、氨基甲酸乙酯（C=O）、Si-O-Si、Fe-O、Ti-O和PbO，从而证实了它们在样品中的存在。掺入多铁陶瓷后的失重率和断裂伸长率的变化直接体现了纯IPN力学性能的改善。电压随频率和磁场的变化，证明了所制备柔性片中的磁电耦合。通过将样品置于20 Oe的交流磁场中，扫描频率从150 Hz到500Hz，我们还观察了磁电耦合系数αME。αME的最大值在180 ~ 220 Hz之间。在180hz、200hz和220hz三个频率下，直流磁场的变化范围为0 ~ 10.31 kOe。当x = 40 wt%时，最大ME系数为1.66 mvcm - 10e -1。这预示着它们能够用于包括磁场传感器在内的各种设备应用。

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.