Ferroelectrics Letters Section最新文献_第3页

Structural, Magnetic Evaluation of Neodymium Doped Nickel-Zinc-Iron Soft Spinel Metal Oxides for Humidity Sensor Applications 湿度传感器用掺钕镍锌铁软尖晶石金属氧化物的结构、磁性评价

IF 0.4 4区物理与天体物理

Ferroelectrics Letters Section Pub Date : 2022-11-02 DOI: 10.1080/07315171.2022.2122583

G. Nagesh, B. Rajesh Babu, K. V. Ramesh

{"title":"Structural, Magnetic Evaluation of Neodymium Doped Nickel-Zinc-Iron Soft Spinel Metal Oxides for Humidity Sensor Applications","authors":"G. Nagesh, B. Rajesh Babu, K. V. Ramesh","doi":"10.1080/07315171.2022.2122583","DOIUrl":"https://doi.org/10.1080/07315171.2022.2122583","url":null,"abstract":"Abstract A series of combustion assisted low-temperature neodymium substituted Ni–Zn–Fe (NZF) nanoparticles were synthesized to unravel the impact on functional behavior of NZF due to the presence of larger Nd ions. The nanopowders were structurally evaluated with X-ray diffraction and infrared spectroscopy measurements without further heat treatment. X-ray diffraction clearly evident the monophasic nature of all the samples and solubility of Nd ions in the spinel unit cell. The average crystallite size from Scherrer and Williamson–Hall method are found below 30 and 20 nm for all the samples, respectively. A distinct shift was observed in most intense peak (3 1 1) suggesting the adjustment among interionic distances to accommodate larger ions. The microstructure, morphology was evaluated from SEM measurements. Magnetic measurements at room temperature show a dramatic change in magnetization, improvement in soft-magnetic nature with low coercivity behavior with Nd substitution. The variation of resistance with respect to humidity conditions suggested that these materials are potentially suitable for resistive humidity sensor applications.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84141512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CdSe thin films prepared by the homemade and cost effective spray pyrolysis technique 采用喷雾热解技术制备了具有成本效益的CdSe薄膜

IF 0.4 4区物理与天体物理

Ferroelectrics Letters Section Pub Date : 2022-11-02 DOI: 10.1080/07315171.2022.2076470

A. D. Kanwate, V. R. Panse, E. U. Masumdar, E. Palupi, R. Umam, Ardimas, G. Antarnusa

引用次数: 0

The failure probability assessment model of piezoelectric materials under electric fatigue load 压电材料在电疲劳载荷下的失效概率评估模型

IF 0.4 4区物理与天体物理

Ferroelectrics Letters Section Pub Date : 2022-11-02 DOI: 10.1080/07315171.2022.2122414

Xianghua Chen, Qun Li, Chunguang Wang

{"title":"The failure probability assessment model of piezoelectric materials under electric fatigue load","authors":"Xianghua Chen, Qun Li, Chunguang Wang","doi":"10.1080/07315171.2022.2122414","DOIUrl":"https://doi.org/10.1080/07315171.2022.2122414","url":null,"abstract":"Abstract The service life of piezoelectric devices is significantly affected by the electric fatigue load. The randomness of loads and nonuniformity of material properties caused by random distribution of internal defects in piezoelectric body will lead to the dispersion of the failure life of piezoelectric devices. Predicting failure probability of piezoelectric materials under electric fatigue load is essential for the reliability and life prediction of piezoelectric structures and devices. In this paper, the initial damage of piezoelectric materials is modeled as a random variable. Based on the methods of probability theory and statistics, the failure probability assessment model of piezoelectric materials under electric fatigue load is proposed. The probability density function of initial damage is obtained by observation and statistics of initial defect area. The failure probability assessment model of piezoelectric materials under electric fatigue load can be obtained by probability theory and integral method. Meanwhile, the failure probability evolution of piezoelectric materials under various electric fatigue loads is considered. The results show that the failure life and dispersion of piezoelectric materials is significantly affected by electric fatigue load, and the variation of failure probability under various electric loads is similar. Based on the proposed failure probability assessment models, the randomness of the electric load and randomly distributed initial defects of materials are considered in the damage evolution and performance prediction of piezoelectric structures, which is an important supplement to the reliability prediction and application of piezoelectric devices.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77570452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structural and Electrical Properties of Pb (Mg1 / 3Nb2 / 3) O3-Pb (Yb1 / 2Nb1 / 2) O3-PbTiO3 Ternary Ceramic for Energy Storage Application 储能用Pb (Mg1 / 3Nb2 / 3) O3-Pb (Yb1 / 2Nb1 / 2) O3-PbTiO3三元陶瓷的结构与电学性能

IF 0.4 4区物理与天体物理

Ferroelectrics Letters Section Pub Date : 2022-11-02 DOI: 10.1080/07315171.2022.2122415

Venkatraj Athikesavan, S. Bhuvana, G. Thilakavathi

{"title":"Structural and Electrical Properties of Pb (Mg1 / 3Nb2 / 3) O3-Pb (Yb1 / 2Nb1 / 2) O3-PbTiO3 Ternary Ceramic for Energy Storage Application","authors":"Venkatraj Athikesavan, S. Bhuvana, G. Thilakavathi","doi":"10.1080/07315171.2022.2122415","DOIUrl":"https://doi.org/10.1080/07315171.2022.2122415","url":null,"abstract":"Abstract The polycrystalline ternary ferroelectric ceramic of PMN-PYN-PT (PMN = PbMg1/3Nb2/3O3, PYN = PbYbl/3Nb2/3O3, PT = PbTiO3) were synthesized by conventional solid state reaction technique. The structural, electrical and energy-storage properties of the ceramic were investigated. X-ray diffraction studies reveal that the ceramic has a coexistence of both tetragonal and rhombohedral phases. Dielectric studies of the sintered samples were studied as a function of temperature ranging from room temperature to 400 °C and in the wide frequency range of 1–50 kHz which shows good relaxor behavior. P-E hysteresis loops for the ceramic confirm good ferroelectric properties, exhibiting at (Pr ∼ 17.5 µC cm−2, Ec ∼ 36.5 and Pm ∼ 20.3) were obtained for PMN-PYN-PT. Energy storage density (W) of 0.13 Jcm−3 was achieved at 50 kV/cm1. The optimum piezoelectric coefficient and piezoelectric voltage coefficient (d33 ∼ 412 pC/N, g33 ∼1.6) measured on the poled sample for PMN-PYN-PT, respectively. From these analyses, the reported ceramic is a promising candidate for energy-storage capacitor applications.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73368535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Effect of microwave sintering on KNN-based lead free ceramics 微波烧结对knn基无铅陶瓷的影响

IF 0.4 4区物理与天体物理

Ferroelectrics Letters Section Pub Date : 2022-05-04 DOI: 10.1080/07315171.2022.2076467

Yang Zhang, Qing-Wen Dai, Jiarui Huang, J. Zhai

引用次数: 1

Influence of sample thickness and cross-sectional area on flexoelectric effect under one-dimensional impact 一维冲击下试样厚度和截面积对挠曲电效应的影响

IF 0.4 4区物理与天体物理

Ferroelectrics Letters Section Pub Date : 2022-05-04 DOI: 10.1080/07315171.2022.2076471

Taotao Hu, Yu Li, Peng Tu

引用次数: 0

Phase transition and ferroelectricity of composites based on ferroelectric metal-organic framework of [NH4][Zn(HCOO)3] 铁电金属-有机骨架[NH4][Zn(HCOO)3]复合材料的相变与铁电性

IF 0.4 4区物理与天体物理

Ferroelectrics Letters Section Pub Date : 2022-05-04 DOI: 10.1080/07315171.2022.2076465

H. Nguyen, M. T. Chau, Thi Bich Thao Phan, A. Milinskiy, S. Baryshnikov

引用次数: 2

Structural and photoluminescence properties of a trivalent rare earth Sm ion-doped PVA/PVP blend polymer films 三价稀土Sm离子掺杂PVA/PVP共混聚合物薄膜的结构和光致发光性能

IF 0.4 4区物理与天体物理

Ferroelectrics Letters Section Pub Date : 2022-05-04 DOI: 10.1080/07315171.2022.2076464

C. Salma, B. H. Rudramadevi

{"title":"Structural and photoluminescence properties of a trivalent rare earth Sm ion-doped PVA/PVP blend polymer films","authors":"C. Salma, B. H. Rudramadevi","doi":"10.1080/07315171.2022.2076464","DOIUrl":"https://doi.org/10.1080/07315171.2022.2076464","url":null,"abstract":"Abstract Transparent polyvinyl alcohol (PVA)/polyvinylpyrrolidone (PVP) and various concentrations of Sm3+ ion-doped PVA/PVP blend-polymer films were prepared using the solution cast method. The structural properties were studied by using XRD and FTIR. Optical UV-Vis, photoluminescence, and decay studies were carried out for prepared PVA/PVP blend polymer films. The XRD confirms the structural change in PVA/PVP blend-polymer with the doping of Sm3+ ion. From FTIR, Sm3+ ion forms the complex formation within the PVA/PVP polymer structure. The allowed band gap decreased from 5 to 4.6 eV, and the refractive index increased from 2.4 to 2.45, increasing Sm3+ ion concentration. From the energy band gap, the bonding parameters ( and δ) were calculated to find the covalent/ionic bond nature of the prepared polymer films. The emission spectra were measured for Sm3+: PVA/PVP with the excitation of 402 nm wavelength (6H5/2→4F7/2). 4G5/2→ 6H7/2 shows maximum intensity at 0.4 wt % of Sm3+, and beyond concentration, quenching was noticed. It is observed from the decay curve that the lifetime of PVA/PVP samples doped with Sm3+ at all concentrations decreases with the increase of Sm3+ ion concentration. It was noticed from CIE chromaticity that Sm3+: PVA/PVP blend polymer films are more appropriate for enhancing reddish-orange photonic emission. Based on the above results, Sm3+: PVA/PVP blend polymer films are suitable for reddish-orange luminescent applications.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2022-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77765057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Stress induced potential barriers in composite piezoelectric semiconductor fibers in extension 复合压电半导体纤维中应力诱发电位势垒的扩展

IF 0.4 4区物理与天体物理

Ferroelectrics Letters Section Pub Date : 2021-11-01 DOI: 10.1080/07315171.2021.1971007

Shuai Ju, Haifeng Zhang, Jia-shi Yang

引用次数: 3

Optical induction in K0.5Na0.5NbO3 ferroelectric ceramic at low calcination temperature by sol-gel route 低煅烧温度下K0.5Na0.5NbO3铁电陶瓷的光感应

IF 0.4 4区物理与天体物理

Ferroelectrics Letters Section Pub Date : 2021-11-01 DOI: 10.1080/07315171.2021.1971012

Shammi Kumar, Mamta Shandilya, N. Thakur

引用次数: 5