Journal of Electroceramics最新文献

{"title":"Correction to: A comprehensive study of structural, dielectric, electrical, thermal, and optical properties of Na/W co-doped BiMnO3 complex electroceramic; (Bi1/2Na1/2)(Mn1/2W1/2)O3","authors":"Sudhansu Sekhar Hota, Debasish Panda, Monalisa Jena, Swayangshree Ojha, Ananya Samal, Ram Naresh Prasad Choudhary","doi":"10.1007/s10832-024-00381-x","DOIUrl":"10.1007/s10832-024-00381-x","url":null,"abstract":"","PeriodicalId":625,"journal":{"name":"Journal of Electroceramics","volume":"53 1","pages":"101 - 101"},"PeriodicalIF":1.7,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Review on the synthesis routes of nickel manganite – a potential material for thermistor applications","authors":"V K Haripriya,&nbsp;K. A. Malini","doi":"10.1007/s10832-024-00376-8","DOIUrl":"10.1007/s10832-024-00376-8","url":null,"abstract":"<div><p>Nickel manganese oxide (NiMn₂O₄) is a versatile mixed metal oxide with a range of potential applications across various fields. It belongs to the spinel structure family, characterized by a cubic crystal structure with specifically arranged cationic and anionic lattice sites. Nickel manganite is a ceramic material that can be produced in miniaturized form using various fabrication processes. This article aims to explore the suitability of this material for various applications, particularly in NTC thermistors. Thermistor materials are widely used in sensing applications in science, engineering, and technology. They are applied in time delay circuits, device protection, voltage regulation, speech volume control, testing equipment for ultra-high-frequency power, and detecting very small amounts of radiant energy. This review seeks to provide valuable insights into the synthesis strategies for nickel manganite, guiding researchers and experts by offering useful information on the appropriate methods for fabricating nickel manganite to meet the specific requirements of NTC thermistors in sensing applications. The article discusses in detail the various synthesis techniques of nickel manganite and how these techniques influence its structure and other properties.</p></div>","PeriodicalId":625,"journal":{"name":"Journal of Electroceramics","volume":"53 1","pages":"77 - 100"},"PeriodicalIF":1.7,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Au-catalyzed Fe2O3@SnO2 heterostructured nanowires for improved low-concentration acetone sensing","authors":"Sung-Ki Min,&nbsp;Hong-Seok Kim,&nbsp;Sung-Pil Chang","doi":"10.1007/s10832-024-00378-6","DOIUrl":"10.1007/s10832-024-00378-6","url":null,"abstract":"<div><p>This study presents the synthesis of Au and Fe₂O₃ nanoparticles (NPs) embedded on SnO₂ nanowires (NWs) using a vapor–liquid–solid (VLS) and hydrothermal method. The resulting Au@Fe₂O₃@SnO₂ NW composites demonstrated a remarkable response of 133.05 at an optimal operating temperature of 225 °C when exposed to 20 ppm of acetone gas, significantly outperforming pure SnO₂ NWs by a factor of 23. These composites also exhibited excellent selectivity and long-term stability in acetone gas detection. A thorough investigation into the sensor’s operational mechanism revealed that the interactions between acetone molecules and adsorbed oxygen, along with electron transfer processes, result in changes in sensor resistance. The superior gas-sensing properties are primarily attributed to the well-defined one-dimensional (1D) microstructure, featuring closely connected n–n heterojunctions of SnO₂ and Fe₂O₃, which provide a large specific surface area with numerous active sites. These sites facilitate the reaction between acetone molecules and oxygen ions on the surface, enhanced by the catalytic effect of Au. This work underscores the potential of this fabrication method for developing gas sensors capable of detecting acetone at low ppm levels in a 225 °C environment.</p></div>","PeriodicalId":625,"journal":{"name":"Journal of Electroceramics","volume":"53 1","pages":"66 - 76"},"PeriodicalIF":1.7,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Studies on morpho-structure and ionic conductivity of apatite-type lanthanum silicate doped with transitional metal cations","authors":"Ioana Perhaita,&nbsp;Laura Elena Muresan,&nbsp;Gheorghe Borodi,&nbsp;Adriana Popa,&nbsp;Adrian Nicoara,&nbsp;Lucian Barbu Tudoran","doi":"10.1007/s10832-024-00374-w","DOIUrl":"10.1007/s10832-024-00374-w","url":null,"abstract":"<div><p>Oxy-apatite lanthanum silicates with general formula La₁₀Si_5.9M_0.1O_27±δ (M = Cr³⁺, Mn⁴⁺, Fe³⁺, Mo⁶⁺, W⁶⁺; 0.05 ≤ δ ≤ 0.1, coded LaSiMO) were obtained by gel-combustion and they were characterized through electrochemical impedance spectroscopy. The XRD patterns show that all samples adopt apatite structure and crystallize in the hexagonal space group P-3(147) with crystallite sizes ranging from 86 nm to 103 nm. The dopant cations were accommodated at Si position with the highest occupancy factor at O6 sites (responsible in conduction) for LaSiCrO and LaSiFeO apatites. Fe and Cr doped samples contain pure apatite phase while those doped with Mn, Mo, W contain La₂SiO₅ as secondary phase which act as insulator in conduction process. Based on EPR and ICP-OES investigations we found that Mn, Mo, W cations present multiple oxidation states in the apatite lattice and a lower incorporation degree in comparison with Fe and Cr cations. Local distortions are present in Fe and Cr doped apatite lattices which explains the higher ionic conductivity of these samples. At 500^oC, the ionic conductivities, range between 1.15·10^− 4 and 3.56·10^− 4 S·cm^− 1 for samples sintered at 1400^oC, values that are higher than un-doped apatite (6.46·10^− 5 S·cm^− 1). Due to the highest ionic conductivity among the samples, LaSiCrO was additionally sintered at 1500^oC and 1600^oC in order to investigate the role of temperature on ionic conduction process. The relative density of LaSiCrO was improved from 89.03 to 93.06% and the ionic conductivity reach 0.28·10^− 2 S·cm^− 1, at 600^oC. The results of this study show that apatites doped with Cr and Fe may be used as electrolytes in SOFCs.</p></div>","PeriodicalId":625,"journal":{"name":"Journal of Electroceramics","volume":"53 1","pages":"55 - 65"},"PeriodicalIF":1.7,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10832-024-00374-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Honoring a Legacy – Heartfelt Thanks to Our Former Editor-in-Chief!","authors":"Sanjay Mathur","doi":"10.1007/s10832-024-00362-0","DOIUrl":"10.1007/s10832-024-00362-0","url":null,"abstract":"","PeriodicalId":625,"journal":{"name":"Journal of Electroceramics","volume":"52 1","pages":"1 - 2"},"PeriodicalIF":1.7,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10832-024-00362-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phase boundary modulation and dielectric, piezoelectric and ferroelectric properties of PZN-xPZT ternary ceramics","authors":"Jianzhou Du,&nbsp;Haohao Yang,&nbsp;Zichen Mu,&nbsp;Cong Yang,&nbsp;Jingyi Yan,&nbsp;Yuansheng Chen","doi":"10.1007/s10832-024-00373-x","DOIUrl":"10.1007/s10832-024-00373-x","url":null,"abstract":"<div><p>Ternary of PZN-<i>x</i>PZT relaxation ferroelectric ceramics were successfully prepared by conventional solid-phase reaction. With the increase of Pb(Zr, Ti)O₃ (PZT) content, XRD analysis shows a gradual decrease of the inclusion crystal phase and a decrease in the formation of secondary phases such as Zn(NbO₃)₂, leading to a more homogeneous phase structure, which is conducive to the improvement of piezoelectric properties. SEM images and densitometric measurements show a decrease in grain size and an increase in the degree of densification of the ceramics, which contributes to the enhancement of the ability of reorientation of electrical domains and thus the improvement of piezoelectric response. The 0.4PZN-0.6PZT ceramic samples demonstrate favorable grain sizes and exhibit the following optimal properties: <i>T</i>_c = 272 ℃, <i>d</i>₃₃ = 570 pC/N, <i>k</i>_p = 0.67, <i>ε</i>_r = 2175, and <i>tan</i>δ = 1.6%. However, the ceramic sample of 0.45PZN-0.55PZT has better comprehensive properties (<i>T</i>_c = 261 ℃, <i>d</i>₃₃ = 443 pC/N, <i>k</i>_p = 0.59, <i>ε</i>_r = 1908, <i>tan</i>δ = 1.7%, <i>P</i>_r = 37.3 µC/cm², <i>P</i>_s = 30.2 µC/cm², <i>E</i>_c = 1.08 kV/mm). PZN-<i>x</i>PZT ceramics are well known for their excellent dielectric, Curie temperature, phase boundary modulation, piezoelectric and ferroelectric properties and are widely used in sensors and transducers.</p></div>","PeriodicalId":625,"journal":{"name":"Journal of Electroceramics","volume":"53 1","pages":"45 - 54"},"PeriodicalIF":1.7,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Density functional quantum screening of the structural, electronic, phonon, and thermophysical properties of Cu-based chalcogenides for interface thermal performance and energy applications","authors":"Zeesham Abbas,&nbsp;Kisa Fatima,&nbsp;Shafaat Hussain Mirza,&nbsp;Amna Parveen,&nbsp;Shabbir Muhammad","doi":"10.1007/s10832-024-00369-7","DOIUrl":"10.1007/s10832-024-00369-7","url":null,"abstract":"<div><p>Researchers are actively prioritizing the development of ecologically friendly and energy-efficient materials for renewable energy devices, such as thermoelectric generators, to tackle the upcoming energy concerns. We have performed an extensive examination of the structural, phonon, electronic, thermoelectric, and thermodynamic properties of Cu-based chalcogenides TMCu₃S₄ (TM = V/Nb/Ta) for their prospective application in renewable energy technologies. The use of the GGA method within the framework of density functional theory (DFT) enables a thorough examination of exchange and correlation energy potentials using first-principles computations. Based on the computed structural parameters, it is evident that TaCu₃S₄ is the most stable compound among TMCu₃S₄ (TM = V/Nb/Ta) due to its lowest ground state energy. TB-mBJ produced improved energy bandgaps of VCu₃S₄, NbCu₃S₄, and TaCu₃S₄ are 0.575, 0.725, and 0.824 eV, respectively. The figure of merit (ZT) values for VCu₃S₄, NbCu₃S₄, and TaCu₃S₄ are 0.997, 0.946, and 0.943, respectively, at 50 K for constant chemical potential. These values render them exceedingly suitable for utilization in thermoelectric (TE) devices. The thermoelectric properties of Cu-based chalcogenides TMCu₃S₄ (TM = V/Nb/Ta) indicate that these materials have great promise for energy-related applications. The thermodynamic analysis reveals that the TMCu₃S₄ (TM = V/Nb/Ta) chalcogenide materials are thermally stabile.</p></div>","PeriodicalId":625,"journal":{"name":"Journal of Electroceramics","volume":"53 1","pages":"29 - 44"},"PeriodicalIF":1.7,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced temperature stability of Li3Mg2NbO6-based ceramics by using LTC composite additives","authors":"Jingru Xie,&nbsp;Zhifen Fu,&nbsp;Qing Cheng,&nbsp;Chen Chen,&nbsp;Yubin She,&nbsp;Xiangyi Li","doi":"10.1007/s10832-024-00368-8","DOIUrl":"10.1007/s10832-024-00368-8","url":null,"abstract":"<div><p>The need for microwave dielectric ceramics is steadily growing along with the rapid advancement of wireless communication technology. The preparation of Li₃Mg₂NbO₆-<i>x</i>wt% LiF-TiO₂-CaF₂ (LMN-LTC, <i>x</i> = 4, 6, 8, 10) ceramics was carried out using the solid-state reaction method. The two-phase structure of the LMN-LTC ceramics was shown by XRD investigation, with the main phase being LMN and the second phase Ca(TiO₃). Due to the influence of additive LTC, the microwave dielectric properties of the LMN ceramics, especially the temperature stability were successfully regulated to near zero. The LMN ceramic with the addition of 6wt% LTC sintered at 1050 °C for 6 h exhibits outstanding microwave dielectric properties: <i>ε</i>_<i>r</i> = 13.0, <i>Q</i> × <i>f</i> = 42,000 GHz, <i>τ</i>_<i>f</i> = 1.76 ppm/°C. It is shown that LMN-6wt% LTC ceramic is promising for wireless communication applications.</p></div>","PeriodicalId":625,"journal":{"name":"Journal of Electroceramics","volume":"53 1","pages":"1 - 9"},"PeriodicalIF":1.7,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural, vibrational, magnetic, and dielectric properties of hexagonally ordered Cr-doped LuMn1 − xCrxO3 (0 ≤ x ≤ 0.08) manganite","authors":"Aadish Kumar Jain,&nbsp;Anchit Modi,&nbsp;Pradeep Kumar Sharma,&nbsp;Shubha Dubey,&nbsp;Ashutosh Mishra","doi":"10.1007/s10832-024-00371-z","DOIUrl":"10.1007/s10832-024-00371-z","url":null,"abstract":"<div><p>This study examines how controlled doping of trivalent cations (Cr³⁺) at manganese (Mn³⁺) sites influences the structural, microstructural, vibrational, magnetic, and dielectric properties of LuMn_1 − xCr_xO₃ (0 ≤ x ≤ 0.08) compounds. These compounds were synthesized using conventional solid-state reaction techniques. Rietveld-fitted X-ray diffraction reveals hexagonal crystal symmetry (P₆₃cm space group) with reduced lattice parameters and volume due to Cr doping and ionic size mismatch. Room temperature Raman spectra show phonon peak shifts and reduced mode intensity, indicating structural disorder or internal stress in all samples. The magnetization outcomes reveal a weak ferromagnetic property across all samples, which can be enhanced with higher concentrations of Cr ions. The frequency-dependent dielectric properties and loss tangent (tan δ) at 300 K in all examined compounds demonstrate a decrease in dielectric constant and an increase in loss tangent. These changes are attributed to the double exchange interaction between Mn³⁺-O-Cr³⁺ cations, supported by the metallic character’s emergence. Our findings on improved magnetization and adjusted dielectric parameters represent progress in understanding multiferroic compounds.</p></div>","PeriodicalId":625,"journal":{"name":"Journal of Electroceramics","volume":"53 1","pages":"10 - 17"},"PeriodicalIF":1.7,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Studies on synthesis, Raman, and electrical properties of novel spinel high entropy ceramics","authors":"Rajesh K. Mishra,&nbsp;E. B. Araújo,&nbsp;Rohit R. Shahi","doi":"10.1007/s10832-024-00370-0","DOIUrl":"10.1007/s10832-024-00370-0","url":null,"abstract":"<div><p>Entropy-stabilized ceramics have attracted researchers significantly due to their potential vast multi-functional applications in various engineering fields. The present study emphasizes the synthesis, sintering temperature, Raman, and electrical behavior of a spinel (CoAlFeNTi)₃O₄ high entropy oxide (HEO). The HEO is synthesized through the modified solid-state reaction method at two different sintering temperatures (1100 °C and 1250 °C) and characterized further with the XRD, Raman, and SEM for structural and microstructural behavior. XRD analysis confirmed the formation of a single cubic spinel phase with the Fd-3 m space group. In addition, Raman analysis also confirmed that the synthesized HEOs have a spinel structure with an inverse spinel nature. With the enhancement of the sintering temperature, XRD analysis indicates that the crystallinity and crystallite size of the HEO enhanced. The current density (J) versus applied electric field (E) characteristics displayed that both 1100 °C and 1250 °C sintered HEOs possessed leakage current density at zero applied electric field and an ohmic conductance of <span>(:4.59times:{10}^{-10})</span> mhos/cm and <span>(:3.43times:{10}^{-10})</span> mhos/cm respectively. Moreover, J - E characteristics also showed that the enhancement of sintering temperature enhanced the resistive switching behavior of the different temperature sintered spinel HEOs. This improved resistive switching behavior in the J-E curve indicates that the synthesized spinel HEO can find potential application in resistive switching memory devices.</p></div>","PeriodicalId":625,"journal":{"name":"Journal of Electroceramics","volume":"53 1","pages":"18 - 28"},"PeriodicalIF":1.7,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}