Detection of electromagnetic radiation in ferroelectric ceramics for non-contact sensing applications

Sharma, Sumeet K.; Chauhan, Vishal Singh; Kumar, Amit

doi:10.1016/j.jallcom.2015.12.026

Cited by 16 publications

(9 citation statements)

References 51 publications

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“…Recently Sharma et al have reported the electromagnetic emission from lead-free and lead-based ferroelectric materials subjected to externally applied alternating electric field and impact loading, respectively [32,33]. Theoretical models for the electromagnetic emissions from metals, rock, ice and various other materials has been proposed earlier alongside the experimental studies [21,[34][35][36].…”

Section: Introductionmentioning

confidence: 99%

A theoretical model for the electromagnetic radiation emission from hydrated cylindrical cement paste under impact loading

et al. 2018

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This paper presents the detection of the electromagnetic radiation (EMR) from the hydrated cement paste samples when impacted by dropping weight. Cylindrical cement samples cured for 28 days emit EMR in the range of 44 mV to 95 mV as the height of impact is varied from 6 cm to 21 cm. The EMR voltage increases linearly as the height of impact increases. This suggests the suitability of the EMR measurement for the structural health monitoring under dynamic loading conditions. A theoretical model has been presented to explain the occurrence of the EMR under impact. The ions present in the capillary pores of the hydrated cement paste lead to the formation of dipoles at the solid liquid interphase. When impact is applied the separation distance between the opposite charges of the dipoles undergoes transient variation causing the EMR. Theoretically calculated EMR voltages are in good agreement with the experimental results in nature as well as magnitude.

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Section: Introductionmentioning

confidence: 99%

A theoretical model for the electromagnetic radiation emission from hydrated cylindrical cement paste under impact loading

et al. 2018

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“…Figure 5 shows continuous EMR signal obtained for all compositions with varying amplitude. According to the experimental results polarization in the sample is found to increase proportionally with the observed EMR signal at the respective applied electric field which suggests its use for monitoring the polarization state of the ceramics [32]. Same group has reported EMR emissions from widely used piezoelectric materials, viz.…”

Section: Ceramicsmentioning

confidence: 85%

“…Sharma et al have investigated EMR emission from ferroelectric materials and proposed its application for non-contact sensing applications. Sharma et al have tested a set of lead-free ferroelectric compositions in the vicinity of the morphotropic phase boundary (MPB) when subjected to ac field [32]. Electrical part of the EMR signal has been recorded by placing a circular loop antenna made up of copper around the samples as shown in Fig.…”

Section: Ceramicsmentioning

confidence: 99%

“…Figure 8 shows an overview from the author's perspective that how ferroelectric ceramics can be used for non-contact sensing. Though less number of reports are available in the literature, thorough experimental and theoretical analysis of electromagnetic signal emission from piezoelectric materials and wireless detection of these electromagnetic signals can transform the way current sensing techniques work [32].…”

Section: Ceramicsmentioning

confidence: 99%

“…Electrical signals (change in ionic conductivity) were first observed from ionic crystals in late 1920s by Joffee et al [15] and were further explored by numerous researchers [16][17][18][19][20][21][22]. Later electrical emissions from materials were further studied to use this phenomenon in crack propagation monitoring [23,24], earthquake prognosis [25,26], snow avalanche prediction [27,28], stress-state monitoring of coal mines [29], predicting rock burst [30,31] and last but not the least for developing an efficient structural health monitoring technique [32]. Monitoring systems are very important nowadays owing to complex machineries and big infrastructures.…”

Section: Introductionmentioning

confidence: 99%

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A review on deformation-induced electromagnetic radiation detection: history and current status of the technique

2020

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Development of the deformation monitoring techniques for the infrastructures so as to avoid catastrophic failure and resulting economic/human loss has remained a key interest of scientists and engineers. Among various deformation monitoring techniques utilized and explored by groups of researchers, electromagnetic radiation detection is one of the intriguing techniques which has remained popular in researchers’ community till today. Almost every type of material is being explored and studied by researchers for the electromagnetic emissions when subjected to external loading and/or failure. Experimental and theoretical investigations are demonstrating these emissions to be a suitable candidate for the deformation monitoring, as a failure predictor and to know about the complex phenomenon of fracture. This article presents extensive literature review and a rigorous discussion on the work done in the past several decades regarding the exploration of electromagnetic emissions from a wide variety of materials and the underlying physical mechanisms. Thus, this review is an attempt to highlight main findings, proposed physical mechanisms, prospective applications, future scope and challenges of the electromagnetic emission detection technique.

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CA–MQL grinding of zirconia engineering ceramics under precompressive stress

Zeng

Song

et al. 2023

Int J Adv Manuf Technol

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Engineering ceramics are widely used in aerospace, 3C electronics, life sciences and other elds. However, the hard brittleness of engineering ceramics makes it di cult to process, prone to damage during processing, and di cult to balance processing e ciency and quality. In this paper, the grinding force, surface morphology, subsurface damage, residual stress and roughness values of zirconia ceramics are studied after undergoing cold air minimal quantity lubrication (CA-MQL) and traditional wet lubrication (WET) at multiple grinding depths under 0 MPa, 200 MPa and 400 MPa precompressive stresses. The results show that CA-MQL signi cantly improves the grinding surface quality when the grinding depths are 30 µm and 50 µm compared with WET. The optimized surface roughness of 400 MPa precompressive stress combined with CA-MQL grinding reaches 17.12%. Precompressive stress signi cantly reduces the surface residual compressive stress by up to 32.8%.

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Detection of electromagnetic radiation in ferroelectric ceramics for non-contact sensing applications

Cited by 16 publications

References 51 publications

A theoretical model for the electromagnetic radiation emission from hydrated cylindrical cement paste under impact loading

A theoretical model for the electromagnetic radiation emission from hydrated cylindrical cement paste under impact loading

A review on deformation-induced electromagnetic radiation detection: history and current status of the technique

CA–MQL grinding of zirconia engineering ceramics under precompressive stress

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