European Physical Journal-applied Physics最新文献_第9页

Electrocaloric properties of Sr and Sn doped BCZT lead-free ceramics Sr和Sn掺杂BCZT无铅陶瓷的电热性能

IF 1 4区物理与天体物理

European Physical Journal-applied Physics Pub Date : 2020-08-01 DOI: 10.1051/epjap/2020200165

S. Patel, Manish Kumar

引用次数: 3

Tribological properties of hydrogenated boron carbide (BxC:Hy) thin films on stainless steel deposited by RF-PECVD technique RF-PECVD沉积不锈钢表面氢化碳化硼(BxC:Hy)薄膜的摩擦学性能

IF 1 4区物理与天体物理

European Physical Journal-applied Physics Pub Date : 2020-08-01 DOI: 10.1051/epjap/2020190323

A. Bute, Neelima Khare, Sanjiv Kumar, D. Bhattacharya, Kulwant Singh, A. Sahu, N. Chand, S. Sinha

{"title":"Tribological properties of hydrogenated boron carbide (BxC:Hy) thin films on stainless steel deposited by RF-PECVD technique","authors":"A. Bute, Neelima Khare, Sanjiv Kumar, D. Bhattacharya, Kulwant Singh, A. Sahu, N. Chand, S. Sinha","doi":"10.1051/epjap/2020190323","DOIUrl":"https://doi.org/10.1051/epjap/2020190323","url":null,"abstract":"This study narrates the findings regarding investigation of tribological properties of Bx C:Hy thin films deposited by Radio Frequency Plasma Enhanced Chemical Vapour Deposition (RF-PECVD) technique. To study tribological properties, two sets of films were prepared with variation in composition and thickness by tuning deposition parameters. Tribological properties were studied in ambience for three different applied vertical load values (5, 10 and 15 N). Lower self-bias (−75 V) seems advantageous for synthesis of Bx C:Hy films offering superior hardness, lubricity and wear resistance in tribologically stressed conditions. For a given composition, the film with the highest thickness (∼3 μm) exhibited better friction and wear resistance, offering lowest co-efficient of friction (COF) ∼0.23 for 5 N load and specific wear rate of 2.56 × 10−5 mm3 /Nm for 10 N load. Lower self-bias during deposition (−75 V) seems advantageous for synthesis of Bx C:Hy films having high hardness (∼2800 HK) and excellent Co-efficient of friction (COF).","PeriodicalId":12228,"journal":{"name":"European Physical Journal-applied Physics","volume":"25 1","pages":"21301"},"PeriodicalIF":1.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81966123","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

Sensitivity of germanium content on growth conditions of silicon-germanium nanoparticles prepared in nonthermal capacitively-coupled plasmas 锗含量对非热容耦合等离子体中制备的硅锗纳米颗粒生长条件的敏感性

IF 1 4区物理与天体物理

European Physical Journal-applied Physics Pub Date : 2020-08-01 DOI: 10.1051/epjap/2020190302

Md. Seraj Uddin, C. Vijayan, J. Rath

引用次数: 1

Using fine-structured gratings to implement mid-infrared dual-band absorbers 采用精细结构光栅实现中红外双波段吸收器

IF 1 4区物理与天体物理

European Physical Journal-applied Physics Pub Date : 2020-08-01 DOI: 10.1051/epjap/2020200087

Xin He, Jinliang Jie, Junbo Yang, Yunxin Han, Sen Zhang

引用次数: 2

Spin transition properties of metal (Zn, Mn) diluted Fe(phen)2(NCS)2 spin-crossover thin films 金属(Zn, Mn)稀释Fe(phen)2(NCS)2自旋交叉薄膜的自旋跃迁特性

IF 1 4区物理与天体物理

European Physical Journal-applied Physics Pub Date : 2020-08-01 DOI: 10.1051/epjap/2020200056

S. Saha, S. Mandal

{"title":"Spin transition properties of metal (Zn, Mn) diluted Fe(phen)2(NCS)2 spin-crossover thin films","authors":"S. Saha, S. Mandal","doi":"10.1051/epjap/2020200056","DOIUrl":"https://doi.org/10.1051/epjap/2020200056","url":null,"abstract":"We report here the effect of metal (Zn and Mn) dilution on the spin transition of Fe(phen)2 (NCS)2 thin film spin-crossover (SCO) complex. The SCO complexes are deposited on glass and indium-tin-oxide (ITO) coated glass by dip-coating technique. The growth of the films is clearly confirmed by the appearance of the sharp optical absorption band at 521–540 nm corresponding to 1 A1g to 1 T1g ligand field absorption of the SCO complex. Although the microstructure of the films remains unaffected by metal dilution, substitution of Fe(II) by either Zn(II) (diamagnetic) or Mn(II) (paramagnetic) results in subtle changes in the bonding environment of the host metal as inferred form X-ray diffraction and Raman studies. The high spin to low spin (or vice versa) transition can be triggered either by electric field or magnetic field as revealed in the measured current (I )–voltage (V ) profile or magnetization data of the films. The data further shows the effect of metal dilution on the spin transition temperatures(T1/2 ), produced hysteresis loop width and loop area, which are the crucial parameter for fabricating spin-based room temperature switching devices.","PeriodicalId":12228,"journal":{"name":"European Physical Journal-applied Physics","volume":"5 1","pages":"20301"},"PeriodicalIF":1.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86317091","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

Application of artificial neuronal networks in extracting parameters of solar cells 人工神经网络在太阳能电池参数提取中的应用

IF 1 4区物理与天体物理

European Physical Journal-applied Physics Pub Date : 2020-08-01 DOI: 10.1051/epjap/2020200109

M. Khalis, R. Masrour

引用次数: 4

Study of femtosecond laser pulse induced shockwave in aluminum-coated dielectric target 飞秒激光脉冲在镀铝介质靶中的诱导冲击波研究

IF 1 4区物理与天体物理

European Physical Journal-applied Physics Pub Date : 2020-07-01 DOI: 10.1051/epjap/2020190014

Chuliang Zhou, Y. Bai, Zhongpeng Li, Yingying Ding, Haiyi Sun, Ye Tian

引用次数: 1

Design, fabrication and characterization of an electrical-explosively actuated MEMS flyer-accelerator inserted with parallel bridge foils 插入平行桥箔的电爆炸驱动MEMS飞行加速器的设计、制造和表征

IF 1 4区物理与天体物理

European Physical Journal-applied Physics Pub Date : 2020-07-01 DOI: 10.1051/epjap/2020200042

Zhi Yang, Guoqiang Zheng, Peng Zhu, Cong Xu, Qiu Zhang, Ke Wang, R. Shen

{"title":"Design, fabrication and characterization of an electrical-explosively actuated MEMS flyer-accelerator inserted with parallel bridge foils","authors":"Zhi Yang, Guoqiang Zheng, Peng Zhu, Cong Xu, Qiu Zhang, Ke Wang, R. Shen","doi":"10.1051/epjap/2020200042","DOIUrl":"https://doi.org/10.1051/epjap/2020200042","url":null,"abstract":"Parallel bridge foils (PBF) with four strip foils, which is derived from traditional single bridge foil (SBF), was designed to study the effect of convergence and collision of plasmas and shock waves on driving flyer. Firstly, Electro-thermal simulation of PBF was performed to analyze temperature distribution before melting, which predicted the synchronous burst characteristic of PBF. Subsequently, a capacitor discharging circuit was designed to initiate bridge foils, results indicated PBF reached higher burst power in shorter time compared with SBF due to better matching between PBF and the test circuit. The flow fields of electrical explosion of bridge foils were photographed by ultra-high-speed camera, which displayed PBF almost burst simultaneously. Moreover, PBF had wider and brighter flow field visualization than SBF owing to convergence and superposition of plasma beams. Most importantly, flyer-accelerators inserted with bridge foils were prepared by MEMS technology, and comparative analysis from PDV revealed MEMS flyer-accelerator inserted with PBF had access to better velocity performances, compared with that inserted with SBF. For instance, PBF flyer-accelerator spent mere 168 ns to 2325 m/s at 900 V/0.22 µF, but SBF flyer-accelerator took 335 ns to 1073 m/s. Finally, we proposed a mathematical model for explaining the enhancement effect of flyer velocity, which to some extent showed good agreement with experimentation.","PeriodicalId":12228,"journal":{"name":"European Physical Journal-applied Physics","volume":"1 1","pages":"10301"},"PeriodicalIF":1.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74121133","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: 7

Performance of a rf neutralizer operating with noble gases and iodine 与惰性气体和碘一起工作的射频中和器的性能

IF 1 4区物理与天体物理

European Physical Journal-applied Physics Pub Date : 2020-07-01 DOI: 10.1051/epjap/2020190213

Patrick Dietz, F. Becker, K. Keil, K. Holste, P. Klar

引用次数: 4

Mechanism of broadened phase transition temperature range in LaFeCoSiC compounds prepared upon high-pressure annealing 高压退火制备的LaFeCoSiC化合物相变温度范围变宽的机理

IF 1 4区物理与天体物理

European Physical Journal-applied Physics Pub Date : 2020-07-01 DOI: 10.1051/epjap/2020200037

Zhengming Zhang

{"title":"Mechanism of broadened phase transition temperature range in LaFeCoSiC compounds prepared upon high-pressure annealing","authors":"Zhengming Zhang","doi":"10.1051/epjap/2020200037","DOIUrl":"https://doi.org/10.1051/epjap/2020200037","url":null,"abstract":"The cobalt-carbon co-doped NaZn13 -type compound LaFe10.95 Co0.65 Si1.4 C0.15 (LFCSC) is one of the most promising candidates for room-temperature working substance in magnetic refrigerator due to its many excellent properties such as large reversible entropy, low cost, and short annealing time. However, owing to the narrow temperature regions of magnetic phase transition in LFCSC, the operation-temperature window for magnetic refrigeration is limited, which restricts its actual application to some extends. In this paper, it is shown that the application of high-pressure to LFCSC during annealing can tailor atomic environment and magnetic transition, which leads to a strongly expanded phase transition temperature range in LFCSC. This broadening behavior can be well understood by importing the magnetoelastic interaction of localized magnetic moments into a microscopic model. The refrigeration performance of the high-pressure annealed sample with wide phase transition temperature range is enhanced according to the relative cooling power (RCP). On the contrary, temperature averaged entropy change (TEC) exhibits a weakened value in the high-pressure annealed sample, which suggests that the magnetic cooling performance could not be effectively improved by simply expanding the phase transition temperature range in the second-order phase transition materials. However, high-pressure annealing would be helpful to the magnetic refrigeration performance for the first-order phase transition materials.","PeriodicalId":12228,"journal":{"name":"European Physical Journal-applied Physics","volume":"26 1","pages":"10601"},"PeriodicalIF":1.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80176426","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