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| 1 | Enhanced dielectric and electrocaloric properties in lead-free rod-like BCZT ceramics显示文摘Ba0.85Ca0.15Zr0.10Ti0.90O3(BCZT)lead-free ceramics demonstrated excellent dielectric,ferroelectric,and piezoelectric properties at the morphotropic phase boundary(MPB).So far,to study the effect of morphological changes on dielectric and ferroelectric properties in lead-free BCZT ceramics,researchers have mostly focused on the influence of spherical grain shape change.In this study,BCZT ceramics with rod-like grains and aspect ratio of about 10 were synthesized by surfactant-assisted solvothermal route.X-ray diffraction(XRD)and selected area electron diffraction(SAED)performed at room temperature confirm the crystallization of pure perovskite with tetragonal symmetry.Scanning electron microscopy(SEM)image showed that BCZT ceramics have kept the 1D rod-like grains with an average aspect ratio of about 4.Rod-like BCZT ceramics exhibit enhanced dielectric ferroelectric(εr=11,906,tanδ=0.014,Pr=6.01μC/cm^2,and Ec=2.46 kV/cm),and electrocaloric properties(ΔT=0.492 K andz=0.289(K×mm)/kV at 17 kV/cm)with respect to spherical BCZT ceramics.Therefore,rod-like BCZT lead-free ceramics have good potential to be used in solid-state refrigeration technology. | Zouhair HANANI Soukaina MERSELMIZ Abdelaadim DANINE Nicolas STEIN Daoud MEZZANE M’barek AMJOUD Mohammed LAHCINI Yaovi GAGOU Matjaz SPREITZER Damjan VENGUST Zdravko KUTNJAK Mimoun El MARSSI Igor ALUK'YANCHUK Mohamed GOUNE | 2020 | Journal of Advanced Ceramics2020，9，2： | 1 |
| 2 | Simulation of cutting forces in ball-end milling显示文摘 | Matjaz M Franci C | 2003 | Robotics and Computer Integrated Manufacturing2003，19，： | 1 |
| 3 | Inhibition of copper corrosion by 1,2,3-benzotriazole: A review 显示文摘 | MATJAZ F INGRID M | 2010 | Corrosion Science2010，52，： | 1 |
| 4 | Characterization of the carbides and the martensite phase inpowder-metallurgy high-speed steel 显示文摘 | MATJAZ G BARBARA S B DJORDJE M | 2010 | MaterialsCharacterization2010，61，4： | 1 |
| 5 | Hydrologic conditions responsible for triggering the Stoze landslide, Slovenia显示文摘 | MATJAZ M MATJAZ MITJA B | 2004 | Engineering Geology2004，73，3： | 1 |
| 6 | Comparison of heat transfer conditions in tube bundle cross-flow for different tube shapes显示文摘 | Andrej H Matjaz L Borut M | 2006 | International Journal of Heat and Mass Transfer2006，49，： | 1 |
| 7 | Development of EM field in lasers with rotating mirror Q-switch显示文摘 | MARKO M MATJAZ L | 1993 | IEEE J Quantum Electronics1993，29，8： | 1 |
| 8 | Hydrologic conditions responsible for lriggeringtheSto~elandslide, Slovenia显示文摘 | MATJAZ M MATJA C MITJA B | 2004 | Engineering Geology2004，73，34： | 1 |
| 9 | Instantaneous and potential radiation effect on underplanted European beech below Norway spruce can- opy显示文摘 | Matjaz C I Schmid M K | 2013 | European Journal Forest Research2013，132，1： | 1 |
| 10 | Design and evaluation of a low-level RF control system analog/digital receiver for the ILC main LINACs显示文摘 | Uros M Brian C Matjaz V | 2008 | Nuclear Instruments and Methods in Physics Research Section A:Accelerators Spectrometers Detectors and Associated Equipment2008，594，1： | 1 |
| 11 | Characterization of the carbides and the martensite phase in powder-metallurgy high-speed steel 显示文摘 | Matjaz G Barbaras B Djordje M | 2010 | Materials Characterization2010，61，： | 1 |
| 12 | Characterization of the carbides and the martensite phase in powder-metallurgy high-speed steel显示文摘 | Matjaz G Setina B B Djordie M | 2010 | MaterialsCharacterization2010，61，4： | 1 |
| 13 | Novel lead-free BCZT-based ceramic with thermally-stable recovered energy density and increased energy storage efficiency显示文摘The eco-responsible lead-free piezoelectric ceramics have been intensively searched for more than adecade, however, the final goal to replace toxic ceramics like lead zirconate titanate (PZT) with lead-freecompounds, having comparable or even better performance has not yet been reached. In this road, thelead-free ceramics Ba_(0.85)Ca_(0.15)Zr_(0.1)Ti_(0.9)O_(3) (BCZT), possessing excellent dielectric, ferroelectric, andpiezoelectric properties are regarded as serious candidates for the PZT replacement. Besides, nano-structuring BCZT is of paramount importance to enhance these functionalities even more. Here, BCZTmultipodes are designed by template-growth hydrothermal synthesis using hydrogen zirconate titanatenanowires. We demonstrate that the fabricated BCZT multipodes exhibit high dielectric permittivity of5300 with a temperature stability coefficient of ±5.9% between 20 and 140℃. A significant recoveredenergy density of 315.0 mJ/cm^(3) with high thermal stability and high energy storage efficiency of 87.4%,and enhanced large-signal piezoelectric coefficient d^(*)_(33) (310 pm/V) are found. Compared to the tradi-tional BCZT ceramics reported in the literature, relying on high-temperature processing, our sampleexhibits boosted energy storage parameters at a much lower temperature. These outcomes may offer anew strategy to tailor eco-responsible relaxor ferroelectrics toward superior energy storage performancefor ceramic capacitor applications. | Zouhair Hanani Soukaina Merselmiz M'barek Amjoud Daoud Mezzane Mohammed Lahcini Jaafar Ghanbaja Matjaz Spreitzer Damjan Vengust Mimoun El Marssi Igor A.Luk'yanchuk Zdravko Kutnjak Brigita Rozic Mohamed Goune | 2022 | Journal of Materiomics2022，8，4： | 0 |
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