Journal of the Australian Ceramic Society最新文献

{"title":"Green fabrication of silver nanoparticles for heavy metal removal in textile wastewater: mechanistic, kinetic, and thermodynamic insights","authors":"Anju Bhardwaj,&nbsp;Nidhi Gupta","doi":"10.1007/s41779-025-01283-z","DOIUrl":"10.1007/s41779-025-01283-z","url":null,"abstract":"<div><p>The textile industry’s hazardous heavy metals and dyes are a significant environmental concern. This study presents an eco-friendly synthesis of silver nanoparticles (AgNPs) using <i>Zanthoxylum armatum</i> seed extract, providing a green and sustainable approach that eliminates the need for toxic precursors. The phytochemicals in the extract not only facilitate nanoparticle formation but also enhance catalytic efficiency for pollutants. The synthesised AgNPs exhibited remarkable performance in adsorbing and reducing heavy metals such as Cu (95.5%), Cd (98.4%), Cr (94.2%), Pb (92.3%), Ni (93.8%), Fe (90.23%), and Co (83.65%) within 10 minutes, outperforming ZnO, TiO₂, and biogenic nanoparticles in both efficiency and speed. This study is novel in its application of thermodynamic and kinetic models, offering a detailed evaluation of factors influencing the adsorption process. Key findings include the impact of nanoparticle size, temperature, contact time, adsorbent dosage, and pH on efficiency. Atomic absorption spectroscopy (AAS) confirmed high precision in the removal of metal ions. The AgNPs also demonstrated superior selectivity for hazardous ions like Cd^{2 +} and Fe^{3 +}, detected via colourimetric changes and UV- Vis spectroscopy. AgNPs show dual functionality of rapid detection of ions and high efficiency of removing them. The AgNPs maintained more than 80% of their adsorption efficiency even after eight regeneration cycles, with Ag⁺ leaching levels significantly below WHO limits, demonstrating their structural robustness and environmental safety. This study stands out for its thorough evaluation of recyclability and long-term stability. It also highlights ecotoxicological safety, as the phytochemical-capped nanoparticles show low environmental reactivity and controlled ion release, and it addresses important scalability issues by optimising extract yield and synthesis costs using locally available seed biomass. Furthermore, the AgNPs were validated in real textile effluent from Buddha Nullah (Ludhiana), showing up to 98% removal of heavy metals like Cd, Cu, and Ni under ambient sunlight. Statistical analysis using ANOVA confirmed the significance of differences in removal efficiency, particularly highlighting selective adsorption behaviour. By combining green synthesis with high efficiency, mechanistic clarity, safety, and scalability—an integrated advancement rarely addressed in prior nanoremediation studies—these findings collectively provide a revolutionary and economical solution for industrial wastewater remediation.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"62 2","pages":"787 - 814"},"PeriodicalIF":2.1,"publicationDate":"2025-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147621102","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":"Green synthesis and characterization of zinc oxide nanoparticles via thyme for biomedical applications: effect of plant extract concentration and drying method","authors":"Hümeyra Karakaya,&nbsp;Burcu Kızılateş,&nbsp;İlker Erdem","doi":"10.1007/s41779-025-01287-9","DOIUrl":"10.1007/s41779-025-01287-9","url":null,"abstract":"<div><p>Green synthesis of nano particles using plant extracts is sustainable, cost-effective, and eco-friendly. However, the synthesis parameters are still being investigated. In this study, zinc oxide nanoparticles (ZnO NPs) were prepared via thyme extract (green synthesis) and the effect of synthesis parameters were investigated. Samples with different concentrations of thyme plant extract (PE) (10, 16 &amp; 24% (v/v) PE / Zn salt solution) were prepared and two different drying methods (freeze-drying (FD) and oven-drying (OD)) were performed. XRD results showed the hexagonal crystalline ZnO were formed with considerable crystallinity (70.8–75.1%) without further heat treatment (calcination). The crystallite sizes of ZnO NPs were determined to be in the range of 11.9–14.8 nm. The ZnO NPs prepared via PE concentration of 16% (v/v) and freeze-drying was with the finest crystallite size (11.9 nm) and considerable crystallinity (72.9%). ZnO NPs prepared via FD method were found to have smaller particle sizes, thus providing a higher surface-to-volume ratio. DLS (dynamic light scattering) analysis was used for determining the particle size distribution (PSD) and surface charge of ZnO NPs at acidic, neutral and basic pH values. The antibacterial characteristics of ZnO NPs were determined against Gram (+) and (-) bacteria. The ZnO NPs with the finest microstructure (16% PE (v/v), FD) had the highest antibacterial activity. The green synthesized ZnO NPs prepared in this study may be promising candidates for various applications including biomaterials and biomedical applications with their fine microstructure and considerable antibacterial activity.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"62 2","pages":"855 - 878"},"PeriodicalIF":2.1,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147621080","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":"Optimization of mechanical, tribological, and machining properties of TiO₂-reinforced AA6013 composites","authors":"D. Vinodh,&nbsp;Sudhakar Reddy Kota,&nbsp;M. Meikandan,&nbsp;K. Vijetha,&nbsp;Natrayan Lakshmaiya,&nbsp;Ramya Maranan","doi":"10.1007/s41779-025-01286-w","DOIUrl":"10.1007/s41779-025-01286-w","url":null,"abstract":"<div><p>Aluminum-based metal matrix composites (MMCs) have emerged as strong candidates for next-generation automotive and aerospace components due to their high strength-to-weight ratio and improved performance under demanding service conditions. Among these, the incorporation of TiO₂ ceramic particles into AA6013 aluminum alloy provides an opportunity to enhance mechanical properties, wear resistance, and machining behavior in a unified manner. This study investigates AA6013–TiO₂ composites fabricated by stir casting with reinforcement levels of 3%, 6%, and 9% by weight. Mechanical characterization revealed consistent improvements in hardness, tensile strength, and impact resistance with increasing TiO₂ addition, while tribological testing demonstrated significant reductions in wear rate and friction coefficient. Machinability was systematically evaluated and optimized using Taguchi design of experiments, which identified cutting speed, feed rate, and depth of cut as the most influential parameters. Confirmation testing at the optimal conditions yielded superior surface quality and lower thermal stresses. The novelty of this work lies in its integrated assessment of mechanical, tribological, and machining responses of TiO₂-reinforced AA6013 composites, supported by statistical validation and optimization strategies. The findings establish AA6013–TiO₂ composites as promising lightweight materials for high-performance applications in the automotive and aerospace industries.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"62 2","pages":"839 - 853"},"PeriodicalIF":2.1,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s41779-025-01286-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147621079","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":"Optimizing energy storage and pyroelectric characteristics through A-site disorder in (Bi0.5Na0.5)TiO3 – based ceramics","authors":"Karam S. El-Nasser,&nbsp;Ebtsam K. Alenezy,&nbsp;Mohamed S. Massoud,&nbsp;Eid Eissa Salama,&nbsp;Ibrahim O. Ali,&nbsp;K. A. Aly,&nbsp;Amira A. Kamal,&nbsp;Abd El-razek Mahmoud","doi":"10.1007/s41779-025-01260-6","DOIUrl":"10.1007/s41779-025-01260-6","url":null,"abstract":"<div><p>Dielectric materials are widely used in high-energy storage devices as an essential component of electronic capacitors. While a high pyroelectric coefficient caused by high remnant polarization (P_r) can restrict their superior and wider energy storage performance. Here, (0.8-x)(Na_0.5Bi_0.5)TiO₃-0.2SrTiO₃-xBaTiO₃ (NBSTBx) (x = 0.0, 0.05, 0.1, and 0.15) ceramic materials prepared by the solid solution method were targeted to undergo the idea of present research. The crystal lattice symmetry increased as configurational entropy (ΔS) increased, resulting in the disrupting of ferroelectricity long-range order of NBT-ST ceramic. Two exclusive dielectric anomalies accompanying large-temperature nanoregions (PNRs) in the ergodic relaxor (ER) case and short-temperature PNRs in the nonergodic relaxor (NR) case are recognized at x &lt; 0.1. The highest activation energy (Ea = 0.098 eV) was achieved at 0.1 of BT, which denotes low coupling between polar clusters, resulting in intriguing to establish ordered polarized zones with large polarization. The pyroelectric parameter (PE) was evaluated by an approximately numeric technique through differentiating remnant polarization P_r as a function of temperature. The suppression of PE was achieved at NBSTB_0.1 sample close to the phase transition temperature. However, high figure of merit coefficient (FOM = 7.9 × 10^− 9 C.cm^− 2.°C^− 1) was achieved at T = 180 °C indicating the material is suitable for pyroelectric applications at high T. The present work shows a good paradigm for enhancing the energy storage performance of NBT ceramics via suppression of pyroelectric characteristics to converge the demanding requirements of energy storage applications.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"62 1","pages":"407 - 419"},"PeriodicalIF":2.1,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147338999","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":"Sustainable scoria-based ceramics: a promising material for high temperature and wear-resistance applications","authors":"Shoroog Alraddadi,&nbsp;Hasan Assaedi","doi":"10.1007/s41779-025-01285-x","DOIUrl":"10.1007/s41779-025-01285-x","url":null,"abstract":"<div><p>The demand for sustainable ceramics with high thermal stability and wear resistance is increasing in advanced high-temperature industrial applications. This study aims to fabricate scoria-based ceramics as an eco-friendly material for high temperature and wear resistance applications. Therefore, a comprehensive study was conducted on the influence of scoria content and varying durations (2 and 4 h) on the phase evolution, microstructure, mechanical and physical properties of ceramic samples fabricated from red clay and volcanic scoria at a low temperature of 950 °C which has not been previously studied. The findings show that extending the sintering duration (4 h) leads to the formation of a new dominant mineral phase accompanied by an increase in density reduced porosity and enhanced mechanical properties. Likewise, incorporating scoria accelerates the phase transformation process contributing to the development of finer grains and an enhanced glassy phase at prolonged sintering times, which in turn leads to higher hardness, wear resistance, and thermal stability. The findings demonstrate the potential of scoria-based ceramics as sustainable and cost effective materials with high performance and thermal stability for industrial applications at high temperatures, including refractory coatings, corrosion resistance, kiln linings, and thermal barriers.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"62 2","pages":"825 - 838"},"PeriodicalIF":2.1,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147621078","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":"Effect of Ca2+ and Y3+ co-doping on the electrical properties of Ce0.8Y(0.12-x)Ca(0.08+x)O(2-δ) electrolyte ceramics","authors":"Bin Yang,&nbsp;Ruili Jing,&nbsp;Biaoxi Guan,&nbsp;Dan Li,&nbsp;Bingge Wang,&nbsp;Fuxi Zhang","doi":"10.1007/s41779-025-01284-y","DOIUrl":"10.1007/s41779-025-01284-y","url":null,"abstract":"<div><p>The Ca²⁺ and Y³⁺ co-doped ceria Ce_0.8Y_(0.12−x)Ca_(0.08+x)O_(2−δ) (x = 0.00,0.02,0.04,0.06) powder materials were prepared by solid-phase synthesis method. They were pressed and sintered at 1350 °C for 5 h to obtain circular sheet-like ceramics with relative densities greater than 95%. The phase structure of the prepared ceramics was identified using powder X-ray diffraction (XRD), and it was found that all samples were pure cubic phase. As x increased, the lattice constant first increased and then decreased. The microstructure of the ceramic surface was observed using field emission scanning electron microscopy (FESEM), it was found that they were all relatively dense. The change in the co-doping content of Ca²⁺ and Y³⁺ had a slight impact on the microstructure. As x increased, the size of large grains decreased, while the amount of small grains also decreased. By testing impedance spectroscopy, the electrical properties of different samples were studied, and it was found that as x increases, the conductivity first gradually increases and then decreases, reaching its maximum at x = 0.04. The gradual increase in conductivity is related to the increasing amounts of oxygen vacancies, average binding energy (ABE), and oxygen vacancy radius. The decrease in conductivity of the sample with x = 0.06 may be related to the relatively large elastic strain and Coulomb stress between defect pairs. The sample with x = 0.04 has the highest conductivity, reaching 24.6 mS/cm at 700 °C, which is higher than the conductivity of YSZ at the same temperature.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"62 2","pages":"815 - 823"},"PeriodicalIF":2.1,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147621155","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":"Hydrothermally developed spinel bimetallic oxide SrCr2O4 particles rationally linked with conductive PANI for supercapacitor","authors":"Muhammad Hassnain Abid,&nbsp;B. M. Alotaibi,&nbsp;Ahmed Hussain Jawhari,&nbsp;Haifa A. Alyousef,&nbsp;Albandari. W. Alrowaily,&nbsp;Muhammad Faizan,&nbsp;Naseeb Ahmad","doi":"10.1007/s41779-025-01275-z","DOIUrl":"10.1007/s41779-025-01275-z","url":null,"abstract":"<div>\u0000 \u0000 <p>An economical and environmental friendly energy storage device is the best way to address issues like pollution and the world energy crisis. For supercapacitor applications, electrode materials with high specific capacitance (C_sp) that are effective, stable and sustainable must be developed. Here, SrCr₂O₄/PANI was prepared hydrothermally for use as a charge storage medium in supercapacitors. Electrochemical properties of developed material were computed using GCD and CV in a 3 M KOH. Electrode made of SrCr₂O₄/PANI exhibited faradaic behaviour, obtaining specific capacitance (C_s=1289.37 F/g), while pure SrCr₂O₄ revealed lower C_s of 648.48 F/g. Polyaniline (PANI) caused an increased C_s and conductivity of material due to its greater surface area and improved electrical conduction. These findings suggest that the SrCr₂O₄/PANI nanocomposite may be a good choice for a reliable and quick supercapacitor electrode. The capacitive feature of SrCr₂O₄/PANI electrode was enhanced with change in structural and electronic arrangement, modification in morphology and integration of carbon based materials. According to this study, adding PANI to a SrCr₂O₄ nanoarray enhances energy storage performance and efficiently used in other energy storage systems.</p>\u0000 </div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"62 2","pages":"681 - 693"},"PeriodicalIF":2.1,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147621040","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":"Development and characterization of eco-friendly geopolymer light weight bricks reinforced with nano waste materials for radiation protection applications","authors":"Sahar A. Mostafa,&nbsp;Mohammad Sayed,&nbsp;Islam N. Fathy,&nbsp;K. A. Mahmoud,&nbsp;Hussein Alshaari,&nbsp;R. A. Elsad,&nbsp;Shaaban M. Shaaban,&nbsp;Islam M. Nabil","doi":"10.1007/s41779-025-01282-0","DOIUrl":"10.1007/s41779-025-01282-0","url":null,"abstract":"<div>\u0000 \u0000 <p>This study analyzes the effects of ferrosilicon (NLFS) and aluminum nano-wastes (NLAP) on the properties of lightweight geopolymer bricks that can be used in radiation shielding, particularly focusing on the potential applications of these materials in radiation protection. Density reductions of 27.6 and 24.8% were recorded using 1% nano-aluminum powder and 1% nano-ferrosilicon, respectively. The compressive strength recoded a non-significant decrease with the use of nano-waste materials, recording 163 kg/cm² for ferrosilicon and 143 kg/cm² for aluminum compared to 185 kg/cm² for the control mix. SEM imaging confirmed the achievement of the set goals as it showed a porous structure with different pore size distributions. TGA and FTIR confirmed the chemical stability and formation of the geopolymeric bonds. The performance in radiation shielding evaluated using Monte Carlo simulations showed that the ferrosilicon waste bricks outperformed the aluminum waste bricks in terms of gamma-ray and neutron attenuation. The decrement in the linear attenuation coefficients for the ferrosilicon sample was 7.441 –0.028 cm^− 1 in the range of 0.015-15 MeV compared to the aluminum sample 5.215 –0.022 cm^− 1. Environmental analysis showed that both nanomaterials helped lower the carbon footprint, with ferrosilicon achieving an 8.53% CO₂ emission reduction as opposed to 4.67% for aluminum. The assessment detailed the use of ferrosilicon and aluminum nano-waste in radiation-shielding lightweight geopolymer bricks.</p>\u0000 </div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"62 2","pages":"771 - 785"},"PeriodicalIF":2.1,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147621055","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":"Microstructural and mechanical investigation of CYSZ/MCrAlY thermal barrier coatings: a comparison of APS and SPS processes","authors":"Fatih Kirbiyik","doi":"10.1007/s41779-025-01281-1","DOIUrl":"10.1007/s41779-025-01281-1","url":null,"abstract":"<div><p>This study investigates the microstructure and mechanical properties of Ceria-Yttria-Stabilized Zirconia (CYSZ) thermal barrier coatings (TBCs) with a NiCoCrAlY bond coat, fabricated using Atmospheric Plasma Spraying (APS) and Spark Plasma Sintering (SPS). TBCs play a vital role in high-temperature applications within the aerospace and automotive industries. APS coatings demonstrated greater porosity, increased thermally grown oxide (TGO) formation, and more significant thermal degradation at elevated temperatures. Conversely, SPS coatings were denser with superior adhesion, lower porosity, and enhanced mechanical properties, including higher microhardness. Phase analysis showed APS reduced CeO₂ content and transformed zirconia phases, while SPS preserved the original phase composition, ensuring better structural integrity and thermal stability. Overall, SPS outperformed APS in mechanical strength, phase stability, and oxidation resistance, making it a superior method for producing high-performance TBCs.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"62 2","pages":"761 - 769"},"PeriodicalIF":2.1,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147621081","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":"Electrical and thermoelectrical properties of strontium doped mixed rare earth (praseodymium & neodymium) manganite ceramics","authors":"Nisha Devi,&nbsp;Tariq Mustafa,&nbsp;Yaseen Ahmad,&nbsp;Monika Sharma,&nbsp;Sonali Thakur,&nbsp;K. K. Bamzai","doi":"10.1007/s41779-025-01268-y","DOIUrl":"10.1007/s41779-025-01268-y","url":null,"abstract":"<div><p>The electrical and thermoelectrical properties along with phase identification, microstructural determination and optical studies are carried out for strontium doped mixed rare earth manganite ceramics. Praseodymium and neodymium in equal ratios are taken as mixed rare elements. The polycrystalline compositions with the general formula Sr_x(PrNd)_1-xMnO₃ (x = 0, 0.25, 0.50, 0.75, 1) synthesized using the conventional solid state reaction technique. X – ray diffraction analysis revealed a structural transformation from the orthorhombic Pbnm phase to the hexagonal P6₃/mmc phase when the Sr content exceeds x = 0.50. High resolution scanning electron microscopy analysis reveals a dense microstructure with varying morphology with increasing concentration of strontium. The average particle size ranges from 0.15 to 0.40 µm for all the compositions. From optical studies, the band gap is found to be in the range of 1.07–1.21 eV. The dielectric properties of Sr_x(PrNd)_1-xMnO₃ are also investigated. Temperature dependent electrical resistivity measurements indicated a decrease in resistivity with rising temperature. While the Seebeck coefficient was large and positive at room temperature for x = 0, with a transition from <i>p</i> – type to <i>n</i> – type conduction at higher temperatures. For other composition, there is <i>n</i> – type behaviour because of negative Seebeck coefficient values. Power factor and figure of merit are greatly affected as the concentration of strontium increases having maximum value for X = 0.75 concentration. Thus, according to the obtained results, the studied materials could be proposed as the most promising materials for thermoelectric applications.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"62 2","pages":"571 - 591"},"PeriodicalIF":2.1,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147621015","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}