Journal of the American Ceramic Society最新文献_第8页

Enhanced electrical properties with high Curie temperature in PMN‒PZT single crystal by solid-state crystal growth 通过固态晶体生长提高PMN-PZT单晶的高居里温度电学性能

IF 3.8 3区材料科学

Journal of the American Ceramic Society Pub Date : 2025-05-29 DOI: 10.1111/jace.20685

Honghui Wang, Song Xia, Ming Ma, Zhenrong Li

{"title":"Enhanced electrical properties with high Curie temperature in PMN‒PZT single crystal by solid-state crystal growth","authors":"Honghui Wang, Song Xia, Ming Ma, Zhenrong Li","doi":"10.1111/jace.20685","DOIUrl":"https://doi.org/10.1111/jace.20685","url":null,"abstract":"0.25 Pb(Mg1/3Nb2/3)O3‒0.35PbZrO3‒0.40PbTiO3 (PMN‒PZT) single crystals were successfully grown by solid-state crystal growth (SSCG) method. The microstructure, phase structure, dielectric, ferroelectric, piezoelectric, and electromechanical properties were systematically investigated for the [110]/[001]-oriented PMN‒PZT single crystals and compared with those of composed ceramics. Most notably, the [001]-oriented PMN‒PZT single crystals possess high piezoelectric properties (d33 ∼ 1098 pC/N), high piezoelectric voltage constant (g33 ∼ 62 × 10−3 V m/N), ultra-high figure of merit (g33 × d33 ∼ 68 × 10−12 m2/N), excellent electromechanical coupling coefficient (k33 ∼ 0.88), high Curie temperature (TC ∼ 313°C), and rhombohedral to tetragonal phase transition temperature (TR-T ∼ 154°C). Moreover, the <math>\u0000 <semantics>\u0000 <msubsup>\u0000 <mi>d</mi>\u0000 <mn>33</mn>\u0000 <mo>∗</mo>\u0000 </msubsup>\u0000 <annotation>$d_{{mathrm{33}}}^*$</annotation>\u0000 </semantics></math> is 1468 pm/V at room temperature and can reach 4215 pm/V at 160°C under a low electric field of 5 kV/cm. The k33 is stable around 0.88 in range of room temperature to around 140°C. This work extends the composition range of single crystal growth in PMN‒PZT system by SSCG method and the PMN‒PZT single crystals exhibit significant application potential in piezoelectric actuator, energy harvester, and electromechanical devices.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 10","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144751552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of porosity and Cr₂O₃ doping on transient behavior of high-burnup UO₂ under simulated RIA/LOCA 孔隙率和Cr₂O₃掺杂对模拟RIA/LOCA下高燃度UO₂瞬态行为的影响

IF 3.8 3区材料科学

Journal of the American Ceramic Society Pub Date : 2025-05-29 DOI: 10.1111/jace.20699

Dong Zhao, Saurabh Kumar Sharma, Andre Broussard, Kevin Yan, Tianyi Chen, Jie Lian

{"title":"Effects of porosity and Cr₂O₃ doping on transient behavior of high-burnup UO₂ under simulated RIA/LOCA","authors":"Dong Zhao, Saurabh Kumar Sharma, Andre Broussard, Kevin Yan, Tianyi Chen, Jie Lian","doi":"10.1111/jace.20699","DOIUrl":"https://doi.org/10.1111/jace.20699","url":null,"abstract":"This paper reports the fabrication of UO₂ fuels mimicking high-burnup structures (HBS) using spark plasma sintering (SPS), with precise control over porosity, pore structure, and grain size. Thermal shock tests at ramping rates of 10–500°C/s were performed to study the transient behavior of these fuels under simulated loss-of-coolant accident (LOCA) and reactivity-initiated accident (RIA) scenarios. Both undoped and Cr2O3-doped fuels resist cracking under LOCA conditions. Under RIA transients, however, fuel cracking occur and crack density increases significantly with higher porosity. Cr2O3-doped fuels exhibit superior thermal shock resistance due to enhanced thermomechanical properties. Finite element analysis (FEA) was employed to model temperature and stress distributions, offering insights into cracking mechanisms under extreme conditions. Temperature gradients across fuel pellets during thermal shock testing drive cracking and fragmentation. These results highlight the critical roles of chemical doping and microstructure in the performance and safety assessment of high-burnup fuels. The methodologies developed, including advanced synthesis, microstructure control, transient testing and FEA, extend beyond nuclear fuels and are applicable to designing and evaluating materials for extreme thermal shocks and rapid temperature changes in high-performance applications.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 10","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144751714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced separation of V-spinel and Ti-spinel in vanadium slag guided by crystallization mechanism 钒渣中钒尖晶石与钛尖晶石的结晶分离

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2025-05-28 DOI: 10.1111/jace.20701

Guoliang Feng, Jintao Gao, Xi Lan, Lei Guo, Zhancheng Guo

{"title":"Enhanced separation of V-spinel and Ti-spinel in vanadium slag guided by crystallization mechanism","authors":"Guoliang Feng, Jintao Gao, Xi Lan, Lei Guo, Zhancheng Guo","doi":"10.1111/jace.20701","DOIUrl":"https://doi.org/10.1111/jace.20701","url":null,"abstract":"Vanadium (V) and titanium (Ti) are widely used in high-performance ceramics due to their excellent magnetic, electrical, and chemical properties. Vanadium slag from the smelting of vanadium–titanium magnetite contains large amounts of V and Ti, which are enriched into spinel in the form of mutual replacement. However, the lack of research on the crystallization mechanism of V and Ti limits their respective recovery. In this study, the crystallization of V and Ti in vanadium slag with temperature was investigated, where V was primarily crystallized into V-spinel between 1773 and 1573 K, while Ti was mainly crystallized into Ti-spinel between 1573 and 1373 K. Afterward, the enhanced separations of V-spinel and Ti-spinel were realized by controlling the cooling rate using super-gravity in the corresponding temperature range, respectively. High-purity crystals of V-spinel with up to 42.68 wt.% V2O3 and Ti-spinel containing up to 32.87 wt.% TiO2 was obtained. On this basis, the crystallization mechanism of V and Ti was revealed by crystal characterization, and the results showed that the crystallization of Ti lagged behind that of V due to the lower crystal stability of Ti-spinel than that of V-spinel. This study provides a theoretical basis and methodological guidance for the efficient utilization of vanadium slag.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144537283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Achieving robust mechanical properties and high translucence in ZrO2–SiO2–Al2O3 ternary ceramic nanocomposites ZrO2-SiO2-Al2O3三元陶瓷纳米复合材料具有良好的机械性能和高的半透明性

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2025-05-28 DOI: 10.1111/jace.20712

Zihua Lei, Wenjun Yu, Le Fu

{"title":"Achieving robust mechanical properties and high translucence in ZrO2–SiO2–Al2O3 ternary ceramic nanocomposites","authors":"Zihua Lei, Wenjun Yu, Le Fu","doi":"10.1111/jace.20712","DOIUrl":"https://doi.org/10.1111/jace.20712","url":null,"abstract":"Transparent or translucent ceramics typically exhibit inferior mechanical performance, which restricts their wider application. Here, we aim to develop ZrO2–SiO2–Al2O3 ternary ceramic nanocomposites (TCNCs) that integrate those two often incompatible properties via microstructure engineering. A fixed ratio of 30 mol% SiO2 was introduced into the ZrO2–Al2O3 system, while the ratios between ZrO2 and Al2O3 were varied. Additionally, different forms of Al2O3 (crystallization or amorphous) were used, resulting in four types of TCNCs. Among the samples studied, the TCNC containing 60 mol% ZrO2 and 10 mol% amorphous Al2O3 achieved high translucency and remarkable mechanical properties. The TCNC comprised ZrO2 nanoparticles embedded in SiO2 glass matrix and Al2O3 glass domains. The superior properties of the TCNC can be attributed to its nanocrystalline-amorphous dual-phase microstructure. For TCNCs utilizing α-Al2O3 submicron particles as the aluminum source, despite their adequate mechanical properties, the agglomeration and lack of densification of these particles resulted in significant light scattering, rending the TCNCs opaque. This study demonstrates that engineering a nanocrystalline-amorphous dual-phase microstructure is an effective strategy to achieve a synergistic combination of robust mechanical properties and high translucence.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144537253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characteristics of (Sr0.92Y0.08)0.85Ti1‒xNixO3‒𝛿 (x = 0.05, 0.10, 0.15, 0.20) perovskites for internal dry methane reforming in solid oxide fuel cells 固体氧化物燃料电池内甲烷干重整用（Sr0.92Y0.08） 0.85Ti1-xNixO3 -𝛿（x = 0.05, 0.10, 0.15, 0.20）钙钛矿的特性

IF 3.8 3区材料科学

Journal of the American Ceramic Society Pub Date : 2025-05-28 DOI: 10.1111/jace.20641

Jun Ho Kim, Su In Mo, Gwang Seon Park, Seung Woo Kim, Se Han Yu, Jeong Woo Yun

{"title":"Characteristics of (Sr0.92Y0.08)0.85Ti1‒xNixO3‒𝛿 (x = 0.05, 0.10, 0.15, 0.20) perovskites for internal dry methane reforming in solid oxide fuel cells","authors":"Jun Ho Kim, Su In Mo, Gwang Seon Park, Seung Woo Kim, Se Han Yu, Jeong Woo Yun","doi":"10.1111/jace.20641","DOIUrl":"https://doi.org/10.1111/jace.20641","url":null,"abstract":"Perovskite with A-site deficiency (A1‒xBO3) is a promising candidate due to introduction of oxygen vacancy for ionic conductivity and nano-sized exsolution of B component with metal phase for catalytic activity. In this study, Ni-doped Sr0.92Y0.08TiO3 perovskite has been investigated to improve the catalytic activity for CO2 dry internal reforming of methane in solid oxide fuel cells (SOFCs). (Sr0.92Y0.08)0.85Ti1‒xNixO3‒𝛿 (x = 0.05, 0.10, 0.15, 0.20) perovskite with A-site deficiency is prepared by pechini method and compared to stoichiometric Sr0.92Y0.08Ti0.85Ni0.15O3‒𝛿 (SYTN15) perovskite. The physical and physicochemical characteristics of the synthesized powders are analyzed by gas chromatography, X-ray diffraction, Brunauer‒Emanett‒Teller, transmission electron microscopy, X-ray photoelectron spectroscopy, and temperature programmed oxidation. (Sr0.92Y0.08)0.85Ti0.85Ni0.15O3‒𝛿 (SYTN15(+)) shows the highest CH4 conversion with 93% and CO2 conversion with 86%. In addition, the SYTN15(+) results to the lowest decreasing rate of the CH4 conversion with 1.86% drop for 50 h. The SYTN15(+) shows better catalytic performance by 10% for dry reforming of methane (DRM) comparing to the SYTN15. The maximum power densities of the SYTN15(+) and the SYTN15 at 900°C are 60.02 and 27.90 mW cm‒2, respectively. Consequently, A-site deficiency catalyst, SYTN15(+) exhibits excellent catalytic activity for DRM and sufficient electrochemical property for SOFC anode materials.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 10","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jace.20641","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144751233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Production of 3D ZrO2 nanofibrous structures by solution blow spinning 溶液吹丝法制备三维ZrO2纳米纤维结构

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2025-05-28 DOI: 10.1111/jace.20683

Déborah dos S. Gomes, Maria O. G. Ferreira, Bianca V. Sousa, Lisiane N. L. Santana, Gelmires. A. Neves, Romualdo R. Menezes

{"title":"Production of 3D ZrO2 nanofibrous structures by solution blow spinning","authors":"Déborah dos S. Gomes, Maria O. G. Ferreira, Bianca V. Sousa, Lisiane N. L. Santana, Gelmires. A. Neves, Romualdo R. Menezes","doi":"10.1111/jace.20683","DOIUrl":"https://doi.org/10.1111/jace.20683","url":null,"abstract":"Zirconia nanofibers are of great technological and economic interest with various potential applications areas, such as thermal barriers, sensors, catalysis, and energy generation. Thus, this study aims to develop a non-sol-gel route for the production of 3D nanofibrous structures of zirconia, using solution blow spinning (SBS) technique. Precursor solutions were prepared using zirconium acetate in acetic acid solution and polyvinylpyrrolidone (PVP) was used as spinning aid polymer. 3D aerogel structures were produced by SBS. The influence of calcination temperature on phase evolution and fibers morphology was evaluated in the range of 500°C to 1000°C. Initially tetragonal phase was the stable structure, with the rise in temperature zirconia fibers underwent a transition to monoclinic phase. The average diameters ranged from 111 ± 38 nm to 458 ± 183 nm with temperature rise, but in all temperature aerogel structural integrity was observed. Therefore, a simplified non-sol-gel route using SBS proved efficient in producing 3D nanofibrous zirconia aerogel structures with potential application in several technological areas.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144537286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electric field enhancement of ceramics including microdefects 含微缺陷陶瓷的电场增强

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2025-05-28 DOI: 10.1111/jace.20690

Kaishi Matsunaga, Jin Araki, Yuki Nakashima, Manabu Fukushima, Kiyoshi Hirao, Norimitsu Murayama, Wataru Nakao

引用次数: 0

Integrated experimental and thermodynamic modeling study of phase equilibria in the “CuO0.5”–CaO–AlO1.5 system “CuO0.5”-CaO-AlO1.5体系相平衡的综合实验与热力学模拟研究

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2025-05-28 DOI: 10.1111/jace.20698

Georgii Khartcyzov, Maksym Shevchenko, Evgenii Nekhoroshev, Evgueni Jak

{"title":"Integrated experimental and thermodynamic modeling study of phase equilibria in the “CuO0.5”–CaO–AlO1.5 system","authors":"Georgii Khartcyzov, Maksym Shevchenko, Evgenii Nekhoroshev, Evgueni Jak","doi":"10.1111/jace.20698","DOIUrl":"https://doi.org/10.1111/jace.20698","url":null,"abstract":"The phase equilibria in the “CuO0.5”–CaO–AlO1.5 system in equilibrium with Cu metal were investigated as part of the integrated experimental and thermodynamic modeling study of phase equilibria in the Cu–Pb–Zn–Fe–Ca–Si–Al–Mg–O–S–(As, Sn, Sb, Bi, Ag, Au, Ni, Cr, Co, and Na) gas/oxide liquid/matte/speiss/metal/solids system in support of the development and optimization of pyrometallurgical processes. The equilibration and quenching technique, followed by the electron probe X-ray microanalysis (EPMA) was used in the present study. The liquidus of the “CuO0.5”–CaO–AlO1.5 system in equilibrium with Cu, including primary phase fields of Ca3Al2O6, Ca12Al14O33, CaAl2O4, CaAl4O7, CaAl12O19, corundum (Al2O3), delafossite (CuAlO2), and lime (CaO), as well as the immiscibility gap in the liquidi of these phases were characterized. The thermodynamic model parameters for the CaO–AlO1.5 binary system and the “CuO0.5”–CaO–AlO1.5 ternary systems in equilibrium with Cu metal were reoptimized based on the experimental data obtained. New experimental results, combined with phase equilibria and thermodynamic literature data, were used to derive a self-consistent set of parameters of the thermodynamic model of all phases in the “CuO0.5”–CaO–AlO1.5 system in equilibrium with Cu metal, in agreement with the major 20-component system. The predicted phase diagram of the CaO–AlO1.5 and “CuO0.5”–CaO–AlO1.5 systems were presented for the first time.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jace.20698","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144537282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Conduction mechanism and electrochemical properties of P2-Na2/3Fe1/3Mn2/3O2 for Na-ion batteries 钠离子电池中P2-Na2/3Fe1/3Mn2/3O2的导电机理及电化学性能

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2025-05-28 DOI: 10.1111/jace.20707

Ichrak Ben Slima, Krimi Moufida, Faouzi Missaoui, Lahcen Fkhar, Abdelfattah Mahmoud, Abdallah Ben Rhaiem

{"title":"Conduction mechanism and electrochemical properties of P2-Na2/3Fe1/3Mn2/3O2 for Na-ion batteries","authors":"Ichrak Ben Slima, Krimi Moufida, Faouzi Missaoui, Lahcen Fkhar, Abdelfattah Mahmoud, Abdallah Ben Rhaiem","doi":"10.1111/jace.20707","DOIUrl":"https://doi.org/10.1111/jace.20707","url":null,"abstract":"Layered transition metal oxides NaxFe1-yMnyO2 represent a cutting-edge cathode material for sodium-ion batteries because they demonstrate high capacity, excellent cycle rate, good electrochemical stability, and long lifetime. The widely used solid-state reaction method was utilized to prepare Na2/3Fe1/2Mn2/3O2 cathode active material. Using Rietveld refinement of X-ray diffraction data, the hexagonal system with P63/mmc space group and lattice constants a = b = 2.9184(9) Å and c = 11.2525(6) Å was identified. Scanning electron microscope analysis enables us to examine the morphology of this material. The optical band gap was calculated throughout the UV–visible spectroscopy in the 200–800 nm wavelength range. The gap energy was estimated to be equal to 2.60 eV. The electrical study relying on the complex impedance of the P2 compound confirms the presence of the three distinct phases with different conductivity behaviors. The semiconducting behavior has two phases: the first occurs for T ≤ 383 K with the NSPT mechanism, and the second occurs for T ≥ 423 K with the CBH mechanism. The electrochemical performance of this material was assessed on CR2032 coin-type half-cell configurations by investing galvanostatic charge-discharge cycling in the voltage range of 2–4.2 V. Up to 120 mAh g−1, the cathode active material shows a high discharge capacity. When the scan rate is raised, the redox peaks exhibit a slight shift, indicating that the material has good structural stability and minimal polarization.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144537264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Re-optimization of the FeO–Fe2O3–SiO2 system integrated with experimental phase equilibria studies 结合实验相平衡研究的FeO-Fe2O3-SiO2体系再优化

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2025-05-28 DOI: 10.1111/jace.20702

Evgenii Nekhoroshev, Denis Shishin, Siyu Cheng, Maksym Shevchenko, Evgueni Jak

{"title":"Re-optimization of the FeO–Fe2O3–SiO2 system integrated with experimental phase equilibria studies","authors":"Evgenii Nekhoroshev, Denis Shishin, Siyu Cheng, Maksym Shevchenko, Evgueni Jak","doi":"10.1111/jace.20702","DOIUrl":"https://doi.org/10.1111/jace.20702","url":null,"abstract":"The Fe–Si–O system is important in understanding the slag chemistry of copper production which involves fayalite slags. It is also an important part of a 20-component Cu-Pb-Zn-Fe-Ca-Si-O-S-Al-Mg-Cr-Na-As-Sn-Sb-Bi-Ag-Au-Ni-Co thermodynamic database being developed for multiple processes and applications of ferrous and nonferrous metallurgy. The present work presents experimental data on high-temperature silica liquidus/miscibility gap in the Fe-Si-O system measured by equilibration/quenching/electron probe X-ray microanalysis (EPMA) method as well as a thermodynamic reassessment of the Fe–Si–O system within the 20-component database. The slag phase has been modeled within the modified quasichemical formalism to account for short-range ordering phenomena. The heat capacities of liquid endmembers have been updated in a way consistent with the physical principles of liquid slag cooling and glass transition, potentially opening a way for lower-temperature applications of the database regarding the leaching of minor elements from partially crystallized slags. Recent developments in thermodynamic modeling and optimization allowed us to perform the assessment of the system in a consistent way as a part of a multicomponent experimental dataset, leading to a superior prediction quality of the resulting thermodynamic database for industrial applications.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jace.20702","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144537284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0