Journal of The European Ceramic Society最新文献_第8页

Effect of heat treatment on the microstructure and mechanical properties of SiCf/SiC composite cladding 热处理对SiCf/SiC复合包层组织和力学性能的影响

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2026-07-01 Epub Date: 2026-01-28 DOI: 10.1016/j.jeurceramsoc.2026.118186

Zhennan Xu , Dongmei He , Jiaxiang Xue , Zhengmao Yang , Zhaoke Chen , Liqiang Zhang , Xiang Xiong

{"title":"Effect of heat treatment on the microstructure and mechanical properties of SiCf/SiC composite cladding","authors":"Zhennan Xu , Dongmei He , Jiaxiang Xue , Zhengmao Yang , Zhaoke Chen , Liqiang Zhang , Xiang Xiong","doi":"10.1016/j.jeurceramsoc.2026.118186","DOIUrl":"10.1016/j.jeurceramsoc.2026.118186","url":null,"abstract":"<div><div>SiC<sub>f</sub>/SiC composite claddings have emerged as a revolutionary solution for future nuclear fuel cladding owing to their exceptional properties. However, the extreme thermal environment during service presents significant challenges to their structural integrity and performance stability. This study investigates the microstructural evolution and mechanical degradation behavior of two-layer SiC<sub>f</sub>/SiC composite claddings following heat treatment at 1200–1500℃ with holding times of 1 and 10 h. Results indicate that moderate heat treatment (≤1300℃ for 1 h) can optimize the cladding microstructure by enhancing β-SiC crystallinity and effectively relieving residual stresses within fibers and matrix. However, as the heat treatment temperature increases and the holding time extends, varying degrees of damage occur in the fibers, interfaces, and matrix of the SiC<sub>f</sub>/SiC composite cladding, except for the coating, leading to significant mechanical degradation. After heat treatment at 1500℃ for 10 h, the radial strength retention of the cladding fell below 80 %, and the axial strength retention decreased to 58.6 %.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 8","pages":"Article 118186"},"PeriodicalIF":6.2,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146080534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Unraveling the defect-induced conduction mechanism in BNT-based ceramics for solid oxide fuel cells 揭示固体氧化物燃料电池中bnt基陶瓷的缺陷诱导传导机制

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2026-07-01 Epub Date: 2026-01-01 DOI: 10.1016/j.jeurceramsoc.2025.118123

Chenggong Xiang , Zhiyong Liu , Pengrong Ren , Kun Guo , Zhiguo Wang , Longlong Shu

{"title":"Unraveling the defect-induced conduction mechanism in BNT-based ceramics for solid oxide fuel cells","authors":"Chenggong Xiang , Zhiyong Liu , Pengrong Ren , Kun Guo , Zhiguo Wang , Longlong Shu","doi":"10.1016/j.jeurceramsoc.2025.118123","DOIUrl":"10.1016/j.jeurceramsoc.2025.118123","url":null,"abstract":"<div><div>Pinpointing the intrinsic link between defects and conductivity in ABO<sub>3</sub> perovskite solid ionic conductors is vital for engineering high-performance ones for electrochemical energy storage and conversion. In this work, the distribution of relaxation times (DRT) was harnessed to decipher the underlying mechanisms that defects governed conduction behavior in both grains and grain boundaries. It found that the lattice defects promoted the formation of flattened TiO<sub>6</sub> octahedra, resulting in excellent grain conductivity. Accumulation of highly polarizable defect dipoles at grain boundary created a built-in electric field that obstructed ion transport and manifested as significant grain boundary impedance behavior. Elevated temperatures were capable of activating the aggregation-associated defect dipoles, which helped to lower the migration energy barrier at the grain boundaries and thus flattening the overall ion migration energy barrier. Consequently, the ionic conductivity at 600 ℃ (7.7 mS·cm<sup>−1</sup>) was nearly 7 times higher than that at 400 ℃ (1.19 mS·cm<sup>−1</sup>). This work uncovers the multifaceted roles of defects at grains and grain boundaries, offering new insights and a theoretical foundation for tailoring the ionic conductivity of solid-state conductors via defect engineering.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 7","pages":"Article 118123"},"PeriodicalIF":6.2,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145882151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Environmental-friendly gray glaze with photonic micro-nanostructure 具有光子微纳米结构的环保型灰色釉料

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2026-07-01 Epub Date: 2026-01-17 DOI: 10.1016/j.jeurceramsoc.2026.118153

Haiyong Li , Hongquan Zhan , Pan Liu , Xuewen Han , Mengjun Liu , Rongting Pan , Chang-an Wang

引用次数: 0

Controlling sinterability and phase evolution in pyrochlore glass-ceramics via cationic radius ratio (rA/rB) for nuclear waste forms 利用放射性废物形态的阳离子半径比（rA/rB）控制焦绿石微晶玻璃的烧结性和相演化

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2026-07-01 Epub Date: 2026-01-16 DOI: 10.1016/j.jeurceramsoc.2026.118151

Hongru Jin, Ce Zheng, Yichun Bi, Zili Liu, Shengkai Wang, Xiaoqiang Li

{"title":"Controlling sinterability and phase evolution in pyrochlore glass-ceramics via cationic radius ratio (rA/rB) for nuclear waste forms","authors":"Hongru Jin, Ce Zheng, Yichun Bi, Zili Liu, Shengkai Wang, Xiaoqiang Li","doi":"10.1016/j.jeurceramsoc.2026.118151","DOIUrl":"10.1016/j.jeurceramsoc.2026.118151","url":null,"abstract":"<div><div>Pyrochlore glass-ceramics are promising materials for nuclear waste immobilization, in which Zr⁴⁺ substitution for Ti⁴⁺ is known to enhance radiation resistance. However, high levels of Zr<sup>4 +</sup> substitution increase cation disorder, elevating the energy barrier for crystallization and posing synthesis challenge. In this study, the cation disorder in the pyrochlore structure was controlled by tuning the r<sub>A</sub>/r<sub>B</sub> ratio in Gd<sub>2-x</sub>Ln<sub>x</sub>Ti<sub>2-y</sub>Zr<sub>y</sub>O<sub>7</sub> (Ln<img>Nd, Dy, and Y) glass-ceramics. The results indicate that B-site Zr⁴⁺ substitution decreases the r<sub>A</sub>/r<sub>B</sub> ratio, leading to higher activation energy and impairing sinterability. In contrast, A-site Nd³⁺ substitution increases the r<sub>A</sub>/r<sub>B</sub> ratio, effectively mitigating these adverse effects and enabling sintering at lower temperatures. The phase composition was precisely regulated by the r<sub>A</sub>/r<sub>B</sub> ratio, progressing through four distinct stages: monoclinic, pyrochlore, coexisting pyrochlore/defect-fluorite, and defect-fluorite, showing a linear correlation between pyrochlore content and r<sub>A</sub>/r<sub>B</sub>. This work successfully demonstrates r<sub>A</sub>/r<sub>B</sub> regulation for fabricating advanced Zr<sup>4+</sup>-substituted glass-ceramic waste forms.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 8","pages":"Article 118151"},"PeriodicalIF":6.2,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146036912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Role of nanoparticles on the reaction sintering and performance of functionally multilayered Yb-silicate environmental barrier coatings 纳米粒子对多功能多层yb -硅酸盐环境屏障涂层反应烧结及性能的影响

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2026-07-01 Epub Date: 2025-12-24 DOI: 10.1016/j.jeurceramsoc.2025.118114

Gauri Waghmare, Ashutosh S. Gandhi

{"title":"Role of nanoparticles on the reaction sintering and performance of functionally multilayered Yb-silicate environmental barrier coatings","authors":"Gauri Waghmare, Ashutosh S. Gandhi","doi":"10.1016/j.jeurceramsoc.2025.118114","DOIUrl":"10.1016/j.jeurceramsoc.2025.118114","url":null,"abstract":"<div><div>Ytterbium silicate environmental barrier coatings (EBCs) were developed via a slurry spraying and reactive sintering approach using Yb<sub>2</sub>O<sub>3</sub> micro- and nano-particles as feedstock. Upon reactive sintering the Yb<sub>2</sub>O<sub>3</sub> top-coat sprayed on Si-bond coat substrate at 1400 °C for 10 h, β-Yb<sub>2</sub>Si<sub>2</sub>O<sub>7</sub> (YbDS) and X2-Yb<sub>2</sub>SiO<sub>5</sub> (YbMS) formed in the interface region as two separate layers. The sintered coatings were heated in static air from 1300 to 1400 °C for 3–50 h for studying growth kinetics of the silicate layers. Differences in the densification behaviour of nanoparticle and Yb<sub>2</sub>O<sub>3</sub> microparticle EBCs fabricated with same processing parameters were understood using Herring’s scaling laws. The coatings and a bare Si substrate were tested for their water vapour resistance in a custom-built combustion flame set-up at 1350 °C for 50 h. Performance evaluation in terms of mass change, microstructural features, and phases present demonstrated the effectiveness of the nanoparticle derived reaction sintered slurry deposited EBCs.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 7","pages":"Article 118114"},"PeriodicalIF":6.2,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145940027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

High-performance SiO2f/SiO2 wave-transparent composites based on laminated puncture method 基于层压穿刺法的高性能SiO2f/SiO2波透明复合材料

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2026-07-01 Epub Date: 2026-01-27 DOI: 10.1016/j.jeurceramsoc.2026.118181

Shuping Wen , Wei Hu , Zhilin Chen , Zhilin Tian , Jijin Huang , Liya Zheng , Bin Li

{"title":"High-performance SiO2f/SiO2 wave-transparent composites based on laminated puncture method","authors":"Shuping Wen , Wei Hu , Zhilin Chen , Zhilin Tian , Jijin Huang , Liya Zheng , Bin Li","doi":"10.1016/j.jeurceramsoc.2026.118181","DOIUrl":"10.1016/j.jeurceramsoc.2026.118181","url":null,"abstract":"<div><div>SiO<sub>2f</sub>/SiO<sub>2</sub> composites have significant potential in radome applications. However, traditional 2D weaving suffers from weak interlayer bonding, while 2.5D and 3D weaving are costly. To overcome these limitations, a laminated puncture reinforcement architecture was introduced into SiO<sub>2f</sub>/SiO<sub>2</sub> composites. The results show that the laminated puncture structure effectively enhances the load-bearing capability, achieving flexural and compressive strengths of 93 MPa and 146 MPa, respectively. Digital image correlation (DIC) analysis confirms that the Z-directional fibers suppress shear-band propagation and delay catastrophic failure. Furthermore, the composites demonstrate excellent ablation resistance with a linear rate of 0.151 mm/s and a mass rate of 0.088 g/s, governed by surface melting, volatilization, and mechanical erosion. In addition, stable electromagnetic transparency is maintained with a dielectric constant of approximately 3 and a dielectric loss tangent value below 0.004. This cost-efficient fabrication method delivers state-of-the-art comprehensive performance, enabling practical engineering applications.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 8","pages":"Article 118181"},"PeriodicalIF":6.2,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146080443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Lattice engineering via large-radius cation doping: A novel strategy for CMAS-resistant high-entropy (Nd0.2Y0.2Er0.2Yb0.2Lu0.2)2SiO5 大半径阳离子掺杂晶格工程：抗cmas高熵（Nd0.2Y0.2Er0.2Yb0.2Lu0.2）2SiO5的新策略

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2026-07-01 Epub Date: 2026-01-27 DOI: 10.1016/j.jeurceramsoc.2026.118178

Qicheng Li , Xiufang Cui , Zhuo Chen , Zhijia Zhang , Yuqi Dong , Shinan Hu , Shitong Chen , Tong Shang , Yongchao Fang , Guo Jin

{"title":"Lattice engineering via large-radius cation doping: A novel strategy for CMAS-resistant high-entropy (Nd0.2Y0.2Er0.2Yb0.2Lu0.2)2SiO5","authors":"Qicheng Li , Xiufang Cui , Zhuo Chen , Zhijia Zhang , Yuqi Dong , Shinan Hu , Shitong Chen , Tong Shang , Yongchao Fang , Guo Jin","doi":"10.1016/j.jeurceramsoc.2026.118178","DOIUrl":"10.1016/j.jeurceramsoc.2026.118178","url":null,"abstract":"<div><div>Three high-entropy silicates were synthesized: (Y<sub>0.25</sub>Er<sub>0.25</sub>Yb<sub>0.25</sub>Lu<sub>0.25</sub>)<sub>2</sub>SiO<sub>5</sub> (4HE), (Nd<sub>0.2</sub>Y<sub>0.2</sub>Er<sub>0.2</sub>Yb<sub>0.2</sub>Lu<sub>0.2</sub>)<sub>2</sub>SiO<sub>5</sub> (NdHE), and (La<sub>0.2</sub>Y<sub>0.2</sub>Er<sub>0.2</sub>Yb<sub>0.2</sub>Lu<sub>0.2</sub>)<sub>2</sub>SiO<sub>5</sub> (LaHE)，with systematic analysis of size disorder effects on crystal structure and phase composition. Using Y<sub>2</sub>SiO<sub>5</sub> as a control, the corrosion resistance of these rare earth silicates was compared, and the influence of La<sup>3 +</sup> and Nd<sup>3+</sup> doping on CMAS corrosion was analyzed. The research results demonstrate that La doping induces the formation of 7.51 wt% X1 phase due to high size disorder (δ = 0.0854), whereas NdHE maintains a nearly single-phase X2-type structure. NdHE exhibits the optimal CMAS corrosion resistance in isothermal CMAS corrosion experiments conducted at both 1400 ℃ and 1500 ℃. This is attributed to Nd<sup>3+</sup> doping accelerating the precipitation of apatite-phase corrosion products and altering their growth orientation, thereby enabling rapid formation of a continuous, dense corrosion layer at the melt-substrate interface, which effectively impedes further rapid penetration of CMAS.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 8","pages":"Article 118178"},"PeriodicalIF":6.2,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Unraveling the high-temperature oxidation mechanism and its impact on tribological performance of Mo2VAlC2 MAX phase Mo2VAlC2 MAX相高温氧化机理及其对摩擦学性能的影响

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2026-07-01 Epub Date: 2026-01-27 DOI: 10.1016/j.jeurceramsoc.2026.118177

Wanjie Sun , Jie Yu , Weiguo Wei , Xiao Jiang , Yan Zhang , Jiafeng Tang , Ying Liu , Lu Wang , Chang Liu

{"title":"Unraveling the high-temperature oxidation mechanism and its impact on tribological performance of Mo2VAlC2 MAX phase","authors":"Wanjie Sun , Jie Yu , Weiguo Wei , Xiao Jiang , Yan Zhang , Jiafeng Tang , Ying Liu , Lu Wang , Chang Liu","doi":"10.1016/j.jeurceramsoc.2026.118177","DOIUrl":"10.1016/j.jeurceramsoc.2026.118177","url":null,"abstract":"<div><div>This study investigates the high-temperature oxidation behavior and tribological performance of a novel <em>o</em>-MAX Mo<sub>2</sub>VAlC<sub>2</sub>. The oxidation behavior of Mo<sub>2</sub>VAlC<sub>2</sub> bulk materials within the range of room temperature to 800 ℃ was examined and analyzed by TGA-DSC, XRD, and XPS. The results revealed the multi-stage oxidation process of Mo<sub>2</sub>VAlC<sub>2</sub>, which exhibited good oxidation resistance below 600 ℃. As the temperature rises, the formation of volatile MoO<sub>3</sub> leads to the catastrophic oxidation of Mo<sub>2</sub>VAlC<sub>2</sub>, eventually generating an oxide layer primarily composed of Al<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub> with superior lubricating properties at 800 ℃. The coefficient of friction decreases significantly from 0.503 at room temperature to 0.210 at 800 ℃. Additionally, the wear mechanism changes from fatigue-abrasive wear to oxidation wear with increasing temperature. This study reveals the oxidation-tribological coupling behavior of Mo<sub>2</sub>VAlC<sub>2</sub> and provides insights for designing MAX phases with enhanced high-temperature self-lubricating properties.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 8","pages":"Article 118177"},"PeriodicalIF":6.2,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Porous alumina ceramics with integrated open and closed pores synthesized from thermal-oxidation of colloidal assembled aluminum particles via freeze casting 由胶体组装铝颗粒通过冷冻铸造热氧化合成具有开孔和闭孔集成的多孔氧化铝陶瓷

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2026-07-01 Epub Date: 2026-01-13 DOI: 10.1016/j.jeurceramsoc.2026.118146

Wenhao Li , Renhong Gan , Jiuhao You , Zhuoran Li , Xiaoyan Zhang

{"title":"Porous alumina ceramics with integrated open and closed pores synthesized from thermal-oxidation of colloidal assembled aluminum particles via freeze casting","authors":"Wenhao Li , Renhong Gan , Jiuhao You , Zhuoran Li , Xiaoyan Zhang","doi":"10.1016/j.jeurceramsoc.2026.118146","DOIUrl":"10.1016/j.jeurceramsoc.2026.118146","url":null,"abstract":"<div><div>Hierarchically porous ceramics featuring aligned pores and pore walls assembled from hollow microspheres were fabricated via a novel processing route. Initially, pre-oxidized metallic aluminum solid microspheres were dispersed in a tert-butanol-based suspension, which was subsequently subjected to freeze casting and thermal treatment. This process resulted in the formation of oriented pores together with in situ generated hollow microspheres. The hierarchical pore structure consists of aligned channels (14.5 μm in diameter) produced by solvent sublimation, and closed pores (around 2.2 μm in diameter) formed through a Kirkendall-effect-driven hollowing transformation. The obtained porous ceramics exhibit favorable characteristics, including a sintering expansion of 2.80 %, high porosity, and enhanced compressive strength. By optimizing the sintering temperature and heating rate, porous alumina ceramics with a porosity of 67.8 % and a compressive strength of 64.75 MPa were achieved. These materials show promising potential for applications requiring lightweight structures without compromising mechanical performance.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 7","pages":"Article 118146"},"PeriodicalIF":6.2,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145978565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Structure matters: A synchrotron study reveals how crystallite structure influences the deposition mechanism for the powder aerosol deposition method 结构问题：一项同步加速器研究揭示了晶体结构如何影响粉末气溶胶沉积方法的沉积机制

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2026-07-01 Epub Date: 2026-01-06 DOI: 10.1016/j.jeurceramsoc.2026.118127

Daniel Paulus , Mario Linz , Anna-Lena Hansen , Sander van Smaalen , Ralf Moos , Anke Silvia Ulrich , Daniela Schönauer-Kamin

{"title":"Structure matters: A synchrotron study reveals how crystallite structure influences the deposition mechanism for the powder aerosol deposition method","authors":"Daniel Paulus , Mario Linz , Anna-Lena Hansen , Sander van Smaalen , Ralf Moos , Anke Silvia Ulrich , Daniela Schönauer-Kamin","doi":"10.1016/j.jeurceramsoc.2026.118127","DOIUrl":"10.1016/j.jeurceramsoc.2026.118127","url":null,"abstract":"<div><div>Powder aerosol deposition (PAD or ADM) is a coating technique to produce ceramic films at room temperature. Although the deposition mechanism has been clarified in some respects, unanswered questions remain. The present work reports films of titanium oxide, which forms a typical PAD microstructure, and films of incommensurate misfit-layered calcium cobalt oxide (Ca<sub>3</sub>Co<sub>4</sub>O<sub>9-δ,</sub> CCO-349), which forms a atypical film. For this work, films made of these two materials were examined using X-ray diffraction with synchrotron radiation and a scanning electron microscopy. It turned out that due to its aperiodic crystal structure, CCO-349 can be deformed more easily than conventional technical ceramics like TiO<sub>2</sub>. The deformation occurs when the layers in the crystal slide in the direction of the misfit. As a result, it is unnecessary to break the crystals, and a larger crystallite size remains in the film. Therefore, PAD films of CCO-349 have a different microstructure.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 7","pages":"Article 118127"},"PeriodicalIF":6.2,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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