Journal of the Australian Ceramic Society最新文献

{"title":"An investigation on the hot corrosion behavior of mullite-12wt.%Yb2SiO5 as a novel EBC composite under CMAS melt attack","authors":"Alireza Hasani Arefi,&nbsp;Majid Mohammadi,&nbsp;Mostafa Hajian,&nbsp;Seyedeh Mahla Seifzadeh Omrani,&nbsp;Seyed Abdolkarim Sajjadi","doi":"10.1007/s41779-025-01330-9","DOIUrl":"10.1007/s41779-025-01330-9","url":null,"abstract":"<div>\u0000 \u0000 <p>Environmental barrier coatings (EBCs) are used to protect silicon carbide (SiC) components in gas turbine engines by inhibiting their surface reactions with water vapor and molten calcium-magnesium-alumino-silicates (CMAS). In this study, ytterbium monosilicate (Yb₂SiO₅) and mullite (3Al₂O₃.2SiO₂) powders were synthesized and mixed with a specific content (mullite-12wt.%Yb₂SiO₅) as an EBC. The hot corrosion performance of the composite samples was investigated at 1300 °C for various durations in contact with molten CMAS powder. Phase analysis of the synthesized powders and hot-corroded specimens was characterized using the X-ray diffraction (XRD) technique. A scanning electron microscope (SEM) equipped with an energy-dispersive spectrometer (EDS) was used to study the morphology and chemical composition of phases formed in the hot-corroded samples. The results showed that as the exposure time increased up to 48 h, the rate of reaction-layer growth significantly decreased, indicating enhanced substrate protection at high temperatures. Additionally, the formation of resistant phases, such as Yb₃Al₅O₁₂ and anorthite, during the reaction leads to an improvement in coating performance. These findings highlight the potential of Yb₂SiO₅-based EBCs for advanced gas turbine applications.</p>\u0000 </div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"62 4","pages":"1415 - 1423"},"PeriodicalIF":2.6,"publicationDate":"2025-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965235","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":"Microwave-sintered Ag2O-Ti-based composites for infection-resistant dental implants","authors":"Shashi Prakash Dwivedi,&nbsp;Shubham Sharma,&nbsp;Vijay Chaudhary,&nbsp;Akhilesh Khan,&nbsp;N. Beemkumar,&nbsp;S. Hemalatha,&nbsp;Parveen Kumar,&nbsp;Ankit Kedia,&nbsp;Abhinav Kumar,&nbsp;Ehab El Sayed Massoud,&nbsp;Jasmina Lozanovic","doi":"10.1007/s41779-025-01333-6","DOIUrl":"10.1007/s41779-025-01333-6","url":null,"abstract":"&lt;div&gt;&lt;p&gt;By incorporating silver oxide (Ag&lt;sub&gt;2&lt;/sub&gt;O), the primary goal of this investigation is to strengthen the antimicrobial characteristics of titanium composites utilized in dental implants. The objective of the research is to examine the effect of Ag&lt;sub&gt;2&lt;/sub&gt;O inclusion on the antibacterial and antifungal effectiveness of titanium composites while simultaneously preserving their biocompatibility and mechanical integrity. To produce silver titanium composites, a microwave sintering process was employed to combine TiO&lt;sub&gt;2&lt;/sub&gt; with variable proportions of Ag&lt;sub&gt;2&lt;/sub&gt;O. The ratios of Ag&lt;sub&gt;2&lt;/sub&gt;O incorporated has been varied from 0 to 100% in TiO&lt;sub&gt;2&lt;/sub&gt;-based composites (0%TiO&lt;sub&gt;2&lt;/sub&gt; + 100%Ag&lt;sub&gt;2&lt;/sub&gt;O; 33.5%TiO&lt;sub&gt;2&lt;/sub&gt; + 66.5%Ag&lt;sub&gt;2&lt;/sub&gt;O; 66.5%TiO&lt;sub&gt;2&lt;/sub&gt; + 33.5%Ag&lt;sub&gt;2&lt;/sub&gt;O, and 100%TiO&lt;sub&gt;2&lt;/sub&gt; + 0%Ag&lt;sub&gt;2&lt;/sub&gt;O). The Ag&lt;sub&gt;2&lt;/sub&gt;O, also with a purity of 99.99%, was selected for its potent anti-microbial characteristics and TiO&lt;sub&gt;2&lt;/sub&gt; with a purity of 99.99% was employed as the base material. As the melting points of TiO&lt;sub&gt;2&lt;/sub&gt; (1847 °C) and Ag&lt;sub&gt;2&lt;/sub&gt;O (293 °C), the micro-wave sintering temperature was set at 185 °C. Each sample was held at this temperature for 20 min to achieve optimal densification without compromising material integrity. Staphylococcus aureus as well as Aspergillus niger inhibitory regions of up to 24 mm have been exhibited within antimicrobial performance. Numerous Ag-containing biomaterials have been recently examined; however, in this current study, the Ag&lt;sub&gt;2&lt;/sub&gt;O-TiO&lt;sub&gt;2&lt;/sub&gt; composites exhibit a 24 mm inhibition zone that far exceeds those previously described. To verify the uniformly-dispersion of Ag&lt;sub&gt;2&lt;/sub&gt;O particles within the composite-matrix, Scanning Electron Microscopy (SEM) was conducted. To assess antimicrobial efficacy, inhibition zone testing was conducted against Staphylococcus aureus and Aspergillus niger, with inhibition zones being measured for each composite formulation. By incorporating Ag&lt;sub&gt;2&lt;/sub&gt;O particles, the antimicrobial characteristics of the titanium composites were significantly enhanced. Superior antibacterial and antifungal activity was demonstrated by the composites, which exhibited inhibition zones of 24 mm against both Staphylococcus aureus and Aspergillus niger. As unveiled from the prior literary outcomes, the titanium implantation which has been coated with silver nanoparticles usually exhibit inhibitory regions among 10 to18 mm towards S. aureus as well as E. coli. The findings from the current study therefore suggest a 30 to 60% rise in the diameter of the inhibitory zone, which indicates the antimicrobial effectiveness of the employed approach which indeed is more effective to that of similar research studies. The uniformity of the Ag&lt;sub&gt;2&lt;/sub&gt;O particle distribution was verified by SEM analysis, which assured the uniform quality of the coating. Ag&lt;sub&gt;2&lt;/sub&gt;O-enhanced Titanium composites that ar","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"62 4","pages":"1455 - 1468"},"PeriodicalIF":2.6,"publicationDate":"2025-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965257","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":"Preparation of MgS thin film on surface of MgO partially stabilized zirconia (MgO-PSZ) substrate by magnetron sputtering and sulfidation reaction","authors":"Sheng Qu,&nbsp;Jingkun Yu,&nbsp;Tianpeng Wen","doi":"10.1007/s41779-025-01313-w","DOIUrl":"10.1007/s41779-025-01313-w","url":null,"abstract":"<div>\u0000 \u0000 <p>A MgS thin film used as auxiliary electrode of sulfur solid electrolyte was prepared on the MgO partially stabilized zirconia (MgO-PSZ) substrate by using magnetron sputtering and sulfidation reaction. The microstructure and composition of the MgS thin film were investigated by using X-ray diffraction and the electron micrographs were observed by using scanning electron microscope, and the electrochemical performance of the sulfur solid electrolyte composed of the prepared MgS thin film as auxiliary electrode and the MgO-PSZ substrate was measured by using electrochemical impedance spectroscopy. The results showed that a perfect MgS thin film with a thickness of about 2.0 μm was prepared by magnetron sputtering and sulfidation reaction, the structure of the MgS thin film was dense and uniform. The MgS thin film can potentially serve as an auxiliary electrode for sulfur sensor, found to be efficient for zirconia-based sulfur sensor by binding MgS on the surface of MgO-PSZ substrate.</p>\u0000 </div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"62 3","pages":"1205 - 1212"},"PeriodicalIF":2.6,"publicationDate":"2025-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148366033","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":"Controlled crystallization and engineering of the electro-optical properties of silver oxide nano/micro disks obtained by pulsed laser welding technique","authors":"A. F. Qasrawi,&nbsp;Rana B. Daragme","doi":"10.1007/s41779-025-01326-5","DOIUrl":"10.1007/s41779-025-01326-5","url":null,"abstract":"<div><p>Herein, Ag₂O films are subjected to the pulsed laser welding (PLW) technique to enhance their crystallinity and expand their application potential. Engineering the pulse energy and pulse width successfully produced Ag₂O nano/microdisks ranging in size from 100 to 900 nm. The crystallinity of the disks improved with increasing pulse energy and width. A significant reduction in defect concentration—by more than 61.5%—was achieved at 220 V and a pulse width of 10 ms. Optically, PLW enhanced transmittance and reduced the reflectance in Ag₂O films while lowering free carrier absorption. The energy band gap remained unchanged. As broadband antennas, the nano/microdisk-structured films operated effectively within the 2.3–5.1 GHz frequency range and exhibited a bandwidth of 2.8 GHz. They also showed a minimum return loss of − 38 dB at 3.15 GHz, confirming their suitability for mmWave applications.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"62 4","pages":"1681 - 1693"},"PeriodicalIF":2.6,"publicationDate":"2025-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965321","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":"Thermal stability and radiation attenuation of arsenic-vanadium glass system","authors":"M. D. Alshahrani,&nbsp;Yousef Alshumrani,&nbsp;Wael Alshehri,&nbsp;Abdulaziz A. Alshihri,&nbsp;F. M. Aldosari,&nbsp;Hosam M. G. Al-Qatlawi,&nbsp;Atef Ismail","doi":"10.1007/s41779-025-01337-2","DOIUrl":"10.1007/s41779-025-01337-2","url":null,"abstract":"<div>\u0000 \u0000 <p>This study focuses on the properties of novel glass compositions containing As₂O₃, V₂O₅, Fe₂O₃, and CaO, which lack traditional glass-forming oxides. Differential Scanning Calorimetry (DSC) analysis revealed enhanced glass-forming ability and thermal stability due to V₂O₅ substitution for As₂O₃, attributed to increased terminal oxygen atoms. Mössbauer Effect (ME) spectroscopic analysis indicated ferric ions’ tetrahedral configurations, where higher V₂O₅ content improved homogeneity. Radiation shielding properties were evaluated using Phy-X/PSD software, with parameters like mass attenuation coefficient (MAC), half-value layer (HVL), and mean free path (MFP) analyzed across gamma energies (0.015–15 MeV). Results showed superior attenuation performance for high-energy photons, with As-rich glasses demonstrating better shielding efficacy due to higher effective atomic number (Z_<i>eff</i>). The G-P method was employed for buildup factors (EBF and EABF), confirming As-rich glasses’ suitability for radiation shielding applications in medical and technological fields.</p>\u0000 </div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"62 4","pages":"1519 - 1529"},"PeriodicalIF":2.6,"publicationDate":"2025-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965333","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":"Heat-resistant geopolymer derived from metakaolin–fly ash blend with bagasse ash addition: an innovative curved backing for steel pipe welding","authors":"Attaphon Kaewvilai,&nbsp;Pakamon Kittisayarm,&nbsp;Thammanoon Thaweechai,&nbsp;Greg Heness,&nbsp;Cristina Leonelli,&nbsp;Duangrudee Chaysuwan,&nbsp;Chayanee Tippayasam","doi":"10.1007/s41779-025-01334-5","DOIUrl":"10.1007/s41779-025-01334-5","url":null,"abstract":"<div>\u0000 \u0000 <p>Ceramic backing is used to support the weld groove and ensure welding quality. However, commercial ceramic backings are expensive and not reusable, limiting their applications and highlighting the need for improvement. This research presents the development of a heat-resistant geopolymer as an innovative curved backing for steel pipe welding. Geopolymers produced from metakaolin-fly ash blends improved their heat resistance by the addition of bagasse ash (BA) at contents of 0, 5, and 10 wt%. The results revealed that BA-added specimens showed lower thermal conductivity due to high porosity (22.76 ± 0.93%), larger pore size (5.63–10.12 nm), and the formation of nepheline phases with an increasing Si/Al ratio. The amount of BA was optimized to 10% to obtain a heat-resistant geopolymer with 29.85 MPa of compressive strength and 0.31 W/m·K of thermal conductivity, providing a good balance between strength and insulation. For the welding experiment, the 10% BA geopolymer was fabricated into a curved strip consistently with the weld-joint profile and successfully used as backing for gas metal arc welding (GMAW) of carbon steel pipe, exhibiting excellent thermal resistance and complete joint fusion. Welded joints showed high joint efficiency (89.28%) and tensile strength (555.63 MPa) was greater than the minimum specified tensile strength of the base metal according to ASME section IX. The hardness profiles of the weld and heat affected zone exhibited evenly distributed with hardness values in the range of 164.3–193.0 HV. These results indicate that BA-added geopolymer is a cost-effective and environmentally friendly alternative material for used as an innovative curved backing for pipe welding application.</p>\u0000 </div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"62 4","pages":"1469 - 1486"},"PeriodicalIF":2.6,"publicationDate":"2025-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965426","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":"Synergistıc effects of Mg-silica aerogel and hydroxyapatite in PLA/K-carrageenan scaffolds for bone regeneration","authors":"Yesim Muge Sahin","doi":"10.1007/s41779-025-01315-8","DOIUrl":"10.1007/s41779-025-01315-8","url":null,"abstract":"<div><p>Biomimetic scaffolds that promote both osteogenesis and angiogenesis have been developed in response to the persistent clinical difficulty of regenerating critical-sized bone defects. In this study, 3D-printed scaffolds composed of polylactic acid (PLA) and κ-carrageenan (KC), functionalized with hydroxyapatite (HA) and magnesium-doped silica aerogel (Mg-SA) were designed and fabricated. For the obtained 3D printed composite scaffolds, by combining hydroxyapatite (HA) and magnesium-doped silica aerogel (Mg-SA) it was aimed to couple the nucleation ability of HA with the interfacial reactivity and biological advantages of Mg-modified siliceous phases. After 3D prototyping, the composite scaffolds were thoroughly examined for morphology, structure, and porosity using Brunauer-Emmett-Teller (BET) surface area analysis, X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The MTT assay and live/dead staining with human osteoblast-like cells were used to evaluate in-vitro performance, additionally immersion in simulated body fluid (SBF) followed by SEM was used to evaluate bioactivity. The composites supported cell attachment and proliferation with their porous architecture, suitable surface chemistry, and high cytocompatibility. SBF testing indicated apatite-like (Ca–P) deposition on HA- and/or Mg-SA-containing scaffolds, whereas the PLA/KC control showed the weakest or no response within the same timeframe. Incorporation of Mg-SA was intended to enhance osteogenic responses and may be conducive to pro-angiogenic behavior, warranting follow-up studies. In general, combining HA and Mg-SA in a 3D-printed scaffold is a promising platform for bone tissue engineering; the current data offer direction for the design of multifunctional composites addressing the coupled requirements of bone regeneration.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"62 3","pages":"1227 - 1245"},"PeriodicalIF":2.6,"publicationDate":"2025-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148365883","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":"Evaluation of mechanical strength of nanosilica and areca fiber–reinforced polyester composites","authors":"Ishrat Meera Mirzana,&nbsp;D. R. Srinivasan,&nbsp;N. Nagabhooshanam,&nbsp;Mathur Nadarajan Kathiravan,&nbsp;Dhandapany Sendil Kumar,&nbsp;S. D. V. V. S. Bhimeshwar Reddy,&nbsp;Ch. Ram Mohan Rao","doi":"10.1007/s41779-025-01331-8","DOIUrl":"10.1007/s41779-025-01331-8","url":null,"abstract":"<div><p>Among the tested specimens, the composite PAN1, reinforced with 3 vol% nanosilica, exhibited superior interlaminar shear strength (26.1 MPa), tensile strength (117 MPa), flexural strength (124 MPa), and impact strength (3.27 J). These enhancements are attributed to the efficient and uniform dispersion of nanosilica throughout the composite, which improves load transfer and overall mechanical performance. Alternatively, the PAN2 composite containing 5 vol% nanosilica demonstrated the highest shore-D hardness (99) and fatigue life counts of 14,895 at 75% UTS, 17,235 at 25% UTS, and 15,794 at 50% UTS, owing to the filler’s effective load transmission, surface hardness enhancement, and crack resistance. Overall, the 3 vol.%nanosilica-reinforced composite exhibits a combination of superior mechanical properties. Based on these results, it is suggested as a potential repair material for applications where environmental conditions or physical damage compromise structural integrity, such as wind turbine blades or automotive components.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"62 4","pages":"1425 - 1435"},"PeriodicalIF":2.6,"publicationDate":"2025-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965452","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":"Investigation on the tribological behavior of aluminium titanate ceramic-based non-asbestos brake pads for passenger cars","authors":"M. Muthu Samy,&nbsp;Vijay Raghunathan,&nbsp;D. Lenin Singaravelu","doi":"10.1007/s41779-025-01314-9","DOIUrl":"10.1007/s41779-025-01314-9","url":null,"abstract":"<div><p>This research focuses on the development of non-asbestos brake pads for passenger vehicles, incorporating ceramic aluminium titanate (Al₂TiO₅) as the theme abrasive ingredient. Three brake pad formulations were fabricated: BP-1 and BP-2, which contained aluminium titanate of different particle sizes (600 μm and 400 μm respectively), and BP-3, which was based on calcium sulfate. The physical, chemical and mechanical properties of these brake pads were characterized following industrial standards. Tribological performance was assessed through full-scale inertia brake dynamometer testing per JASO-C-406:2000, simulating real-world braking conditions. Microstructural analysis, including Field Emission Scanning Electron Microscope (FE-SEM) and elemental mapping, revealed distinct wear mechanisms for each formulation. BP-1 demonstrated superior friction consistency, minimal wear, attributed to its optimized particle size distribution and strong matrix bonding. In contrast, BP-2 exhibited moderate performance, while BP-3 showed the highest material loss due to weaker bonding. This study highlights aluminium titanate’s potential as a sustainable and effective ceramic abrasive, offering enhanced braking performance and reducing environmental concerns.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"62 3","pages":"1213 - 1225"},"PeriodicalIF":2.6,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148365945","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":"Preparation of nickel ferrite nanostructures using electrooxidation method","authors":"Ijaz u Rahman Rashid,&nbsp;Saba Mosivand","doi":"10.1007/s41779-025-01319-4","DOIUrl":"10.1007/s41779-025-01319-4","url":null,"abstract":"<div><p>Nickel-iron oxide nanoparticles were prepared using an electrochemical method by one cathode and two anodes in a solution containing sodium sulfate and thiourea. The effect of different applied voltages, as well as the surface of the nickel anode on structure and magnetization of the nanoparticles were investigated. The nanoparticles were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and vibrating sample magnetometer (VSM). Based on XRD patterns the formation of cubic structure of NiFe₂O₄, together with rhombohedral α-Fe₂O₃, hexagonal Ni(OH)₂ and rhombohedral Fe_8.7O₁₀, depending on the experimental conditions was confirmed. It is possible to improve the crystal structure of samples by increasing the applied voltage or the surface area of nickel anode. Based on SEM images, the mean particle size ranges from ~ 30 nm to ~ 210 by changing the applied voltage or the surface area of nickel anode. SEM images show that the samples synthesized at lower voltages or smaller nickel anode surface area are highly agglomerated. VSM results show that all nanoparticles are magnetically soft and present a little hysteresis. The samples prepared at 25 V presents the magnetization of ~ 4.3 ± 0.2 emu/g due to the presence of higher amount of nickel ferrite or larger size of the nanoparticles in this sample.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"62 3","pages":"1271 - 1282"},"PeriodicalIF":2.6,"publicationDate":"2025-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148365975","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}