Journal of the American Ceramic Society最新文献_第5页

Role of ZnO dopant in enhancing piezoelectric characteristics in KNN-based piezoelectric ceramics ZnO掺杂剂在提高knn基压电陶瓷压电特性中的作用

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2024-10-08 DOI: 10.1111/jace.20186

Yilong Liu, Chuilei Wang, Yuanna Zhu, Limin Hou, Tao Wei, Tongzhen Wu, Yu Huan

{"title":"Role of ZnO dopant in enhancing piezoelectric characteristics in KNN-based piezoelectric ceramics","authors":"Yilong Liu, Chuilei Wang, Yuanna Zhu, Limin Hou, Tao Wei, Tongzhen Wu, Yu Huan","doi":"10.1111/jace.20186","DOIUrl":"https://doi.org/10.1111/jace.20186","url":null,"abstract":"Considering that lead-based piezoelectric ceramics are not conducive to sustainable development, the research and preparation of environmentally friendly lead-free piezoelectric ceramics has become a new trend. Among them, potassium-sodium niobate based (KNN-based) piezoelectric ceramics are considered as the most potential candidates because of their good piezoelectric properties. However, the strong sensitivity to temperature has hindered the further application of KNN-based ceramics. In this work, the ZnO dopant was introduced in 0.96K0.48Na0.52Nb0.96Sb0.04O3–0.04Bi0.5Na0.5HfO3 ceramics to improve their piezoelectric characteristics. On the one hand, Zn2+ could occupy B-site and thus enhance the lattice distortion of BO6 octahedra, resulting the enhanced piezoelectric properties including kp = 46%, d33 = 344 pC/N and TC = 282°C in the optimal component with x = 0.01. On the other hand, the defect dipole formed by the acceptor dopant Zn2+ pinned the motion of domain wall, and thus improved the temperature stability over a wide temperature range of 20°C to 180°C, where the descent in unipolar strain decreased from 35% (x = 0) to 23% (x = 0.01). This work provides a point of view about how ZnO dopants make an influence on the KNN-based ceramics.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 2","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762556","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

Defect inhibition mechanism of 3D-printed ceramics via synergetic resin composition and debinding processing regulation 协同树脂组成与脱粘工艺调控对3d打印陶瓷缺陷抑制机理的影响

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2024-10-07 DOI: 10.1111/jace.20168

Shixiang Zhou, Guizhou Liu, Annan Chen, Jin Su, Kai Liu, Changshun Wang, Yue Zhang, Chunze Yan, Yunsong Shi

引用次数: 0

Geopolymers made using organic bases. Part III: Cast magnesium, yttrium, and zinc aluminosilicate and silicate ceramics 用有机碱制成的地聚合物。第三部分：铸造镁，钇，锌铝硅酸盐和硅酸盐陶瓷

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2024-10-07 DOI: 10.1111/jace.20149

Devon M. Samuel, Waltraud M. Kriven

{"title":"Geopolymers made using organic bases. Part III: Cast magnesium, yttrium, and zinc aluminosilicate and silicate ceramics","authors":"Devon M. Samuel, Waltraud M. Kriven","doi":"10.1111/jace.20149","DOIUrl":"https://doi.org/10.1111/jace.20149","url":null,"abstract":"It was shown in Part II of this series of articles that geopolymers synthesized with organic bases could be used as precursors to mullite and mullite + glass composites. A natural next step is to determine whether it is possible to synthesize materials outside the Al2O3·SiO2 and alkali oxide·Al2O3·SiO2 phase systems. Hence, the focus of this study was the use of geopolymer-like processing to make preceramic bodies with magnesium, yttrium, and zinc aluminosilicate and silicate compositions. These preceramics were successfully fired into monolithic bodies of cordierite, mixed yttrium and aluminum silicates, yttrium disilicate, and willemite. The synthesis of these preceramics employed a guanidine silicate solution, a synthetic oxide powder, and in some cases metakaolin to reach the oxide composition of the ceramic. All solidified within 3 days at 20°C or 50°C, depending on the composition. For the first time, this study showed that Y2O3 and ZnO can react with silicate solutions to give some Y-O-Si and Zn-O-Si bonding analogous to Al-O-Si bonding in geopolymers. These results suggest that other silicate compositions may be possible, such as with the rare earth oxides, which might be valuable to process like a geopolymer rather than by traditional ceramic processing. However, the ceramics made here were generally porous due to the expansion of gases within the sample that were trapped by a viscous liquid phase during firing.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 2","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jace.20149","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762387","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

Microstructural basis of AI predictions for material properties: A case study of silicon nitride ceramics using t-SNE 人工智能预测材料性能的微观结构基础：基于t-SNE的氮化硅陶瓷的案例研究

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2024-10-07 DOI: 10.1111/jace.20173

Ryoichi Furushima, Yuki Nakashima, Yutaka Maruyama, You Zhou, Kiyoshi Hirao, Tatsuki Ohji, Manabu Fukushima

{"title":"Microstructural basis of AI predictions for material properties: A case study of silicon nitride ceramics using t-SNE","authors":"Ryoichi Furushima, Yuki Nakashima, Yutaka Maruyama, You Zhou, Kiyoshi Hirao, Tatsuki Ohji, Manabu Fukushima","doi":"10.1111/jace.20173","DOIUrl":"https://doi.org/10.1111/jace.20173","url":null,"abstract":"Artificial intelligence (AI) models such as a convolutional neural network (CNN) are powerful tools for predicting the properties of materials from their microstructural images, etc. It is, however, critically essential to understand how the AI models use images and information to predict the target properties. In this study, we tried to gain insight into the inner workings of two AI models trained to predict bending strength (BS) and thermal conductivity (TC) of silicon nitride ceramics. Focusing on the intermediate feature representation of the microstructural images in the networks, the high-dimensional data points corresponding to sample images were mapped onto a two-dimensional plane using t-distributed stochastic neighbor embedding (t-SNE). The maps demonstrated that the AI models predicted BS and TC primarily based on the porosity and grain sizes of the samples. The result indicates that t-SNE is a useful technique for making the basis of models' predictions more understandable and well founded.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 2","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762409","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

Clarifying early period hydration process of ultra-low W/B cementitious composite subjected to underwater circumstance 阐明水下环境下超低水化比胶凝复合材料的早期水化过程

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2024-10-07 DOI: 10.1111/jace.20187

Jinyun Zhu, Liuliu Xu, Rui Yu, Xue Liu, Siyu Wang, Zhiyu Wang

{"title":"Clarifying early period hydration process of ultra-low W/B cementitious composite subjected to underwater circumstance","authors":"Jinyun Zhu, Liuliu Xu, Rui Yu, Xue Liu, Siyu Wang, Zhiyu Wang","doi":"10.1111/jace.20187","DOIUrl":"https://doi.org/10.1111/jace.20187","url":null,"abstract":"An innovative method is proposed in this study that combines long sequence precision prediction model with experiments to study how early hydration affects ultra-low water-binder ratio cementitious composite (ULWBRCC) properties. To be specific, by using heat release and degree of hydration as variables and introducing various temporal models to analyze the early hydration process, the micro- and macroscopic properties of specimens at different ages are assessed in detail. The obtained results can be summarized as follows: The long-sequence accurate time series model can predict the earliest hydration process of underwater ULWBRCC, and the predicted late-stage hydration pattern matches the experimental results. The underwater environment optimizes ULWBRCC's hydration process and increases its early compressive strength by 19.6%. The hydration of ULWBRCC is predicted using a time series model in the paper, filling the gap of uncertainty in the earliest performance of underwater rapid repair cement-based composite materials, and the MSE of the Informer is improved by 92.88% compared with other models.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 2","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762222","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

Advancing understanding of composition–structure–luminescent properties in laser glass through machine learnings 通过机器学习推进对激光玻璃组成-结构-发光特性的理解

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2024-10-07 DOI: 10.1111/jace.20184

Yao Ji, Shuangli Dong, Weichao Wang, Qinyuan Zhang

{"title":"Advancing understanding of composition–structure–luminescent properties in laser glass through machine learnings","authors":"Yao Ji, Shuangli Dong, Weichao Wang, Qinyuan Zhang","doi":"10.1111/jace.20184","DOIUrl":"https://doi.org/10.1111/jace.20184","url":null,"abstract":"Rare-earth (RE)-doped laser glasses meet urgent needs in national security and scientific fields, and their optimization has garnered extensive attention. However, the design of these laser glasses often relies excessively on trial-and-error experimentation, leading to significant costs and a lack of scientific guidance. Herein, we propose an integrated method that combines structural descriptors determined from molecular dynamics simulations, a self-constructed luminescent database, and a machine learning algorithm to establish the composition–structure–luminescent property (CSLP) relationship. Using an Nd3+-doped commercial silicate laser glass system as an example, the effectiveness of this approach has been demonstrated. The developed CSLP model enables highly accurate predictions of spectral properties, achieving a determination coefficient (R2) greater than 0.94, based on eight structural descriptors. The importance of different structural descriptors on spectral characteristics is ranked and thoroughly discussed, revealing an intrinsic relationship between the first and second coordination shells around RE ions and luminescent behaviors. Furthermore, the generic structural descriptors identified in the CSLP model can be extrapolated to other systems involving different network formers (e.g., silicate and phosphate) and modifier cations (e.g., Li, Na, K, Ba, and Ca). This capability facilitates the design of laser glasses tailored to specific targets, such as large emission cross-sections, extended lifetimes, or reduced quenching effects.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 2","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762411","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

Local structure maturation in high entropy oxide (Mg,Co,Ni,Cu,Zn)1-x(Cr,Mn)xO thin films 高熵氧化物（Mg,Co,Ni,Cu,Zn）1-x(Cr,Mn)xO薄膜的局部结构成熟

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2024-10-06 DOI: 10.1111/jace.20171

Gabriela E. Niculescu, Gerald R. Bejger, John P. Barber, Joshua T. Wright, Saeed S. I. Almishal, Matthew Webb, Sai Venkata Gayathri Ayyagari, Jon-Paul Maria, Nasim Alem, John T. Heron, Christina M. Rost

{"title":"Local structure maturation in high entropy oxide (Mg,Co,Ni,Cu,Zn)1-x(Cr,Mn)xO thin films","authors":"Gabriela E. Niculescu, Gerald R. Bejger, John P. Barber, Joshua T. Wright, Saeed S. I. Almishal, Matthew Webb, Sai Venkata Gayathri Ayyagari, Jon-Paul Maria, Nasim Alem, John T. Heron, Christina M. Rost","doi":"10.1111/jace.20171","DOIUrl":"https://doi.org/10.1111/jace.20171","url":null,"abstract":"High entropy oxides (HEOs) have garnered much interest due to their available high degree of tunability. Here, we study the local structure of (MgNiCuCoZn)0.167(MnCr)0.083O, a composition based on the parent HEO (MgNiCuCoZn)0.2O. We synthesized a series of thin films via pulsed laser deposition at incremental oxygen partial pressures. X-ray diffraction shows lattice parameters to decrease with increased pO2 pressures until the onset of phase separation. X-ray absorption fine structure shows that specific atomic species in the composition dictate the global structure of the material as Cr, Co, and Mn shift to energetically favorable coordination with increasing pressure. Transmission electron microscopy analysis on a lower-pressure sample exhibits a rock salt structure, but the higher-pressure sample reveals reflections reminiscent of the spinel structure. In all, these findings give a more complete picture of how (MgNiCuCoZn)0.167(MnCr)0.083O forms with varying initial conditions and advances fundamental knowledge of cation behavior in high entropy oxides.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 2","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jace.20171","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762166","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

Hierarchical materials with interconnected pores from capillary suspensions for bone tissue engineering 骨组织工程用毛细管悬浮液中具有相互连接孔的分层材料

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2024-10-06 DOI: 10.1111/jace.20179

Souhaila Nider, Femke De Ceulaer, Berfu Göksel, Annabel Braem, Erin Koos

{"title":"Hierarchical materials with interconnected pores from capillary suspensions for bone tissue engineering","authors":"Souhaila Nider, Femke De Ceulaer, Berfu Göksel, Annabel Braem, Erin Koos","doi":"10.1111/jace.20179","DOIUrl":"https://doi.org/10.1111/jace.20179","url":null,"abstract":"The increasing demand for bone grafts due to the aging population has opened new opportunities for the manufacture of porous ceramics to assist in bone reconstruction. In our study, we investigate a new, promising method to manufacture hierarchically porous structures in a straightforward and tunable way. It consists of combining the novel technology of capillary suspensions, formed by mixing solid particles and two immiscible liquids, one less than 5 vol%, with freeze casting. We have successfully achieved alumina and beta-tricalcium phosphate (β-TCP) materials with both <2 µm and 20–50 µm as the smallest and largest pore sizes, respectively. The microstructure exhibits fully open pores and high levels of porosity (>60%). The capillary suspensions’ rheological behavior indicates that silica nano-suspensions as a secondary fluid creates a stronger internal particle network than sucrose for the alumina system. Conversely, the opposite was observed with the β-TCP system. These differences were attributed to the change in affinity between the secondary fluids and the solid loading. In our study, both systems have served to deepen the knowledge about the new area of capillary suspensions and proved their use in hierarchical porous scaffolds for bone tissue engineering.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 2","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762165","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

Microstructure and mechanical properties of 3D-printed zirconia bone scaffold: Experimental and computational analysis 3d打印氧化锆骨支架的微观结构和力学性能：实验和计算分析

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2024-10-06 DOI: 10.1111/jace.20189

Srimanta Barui, Austin Lebert, Francisco Jauregui, Krishna Sai Aparna Munjuluri, Kunal Kate

{"title":"Microstructure and mechanical properties of 3D-printed zirconia bone scaffold: Experimental and computational analysis","authors":"Srimanta Barui, Austin Lebert, Francisco Jauregui, Krishna Sai Aparna Munjuluri, Kunal Kate","doi":"10.1111/jace.20189","DOIUrl":"https://doi.org/10.1111/jace.20189","url":null,"abstract":"Microextrusion-based additive manufacturing of zirconia-based bioceramics is capable of fabricating design-specific architectures with high mechanical strength properties and relative density. We developed a novel organic residue-free binder system for zirconia paste printing (ZP2) with the shear-thinning properties apropos to microextrusion-based 3D printing. Based on thermogravimetric analysis, debinding protocol was established followed by high-temperature heat treatment under four sintering conditions. Quantitative linear shrinkage (32.3%–42.7% ranging from in-plane to vertical direction), density (83.3%–87.5%), and surface roughness (7.7–13.8 µm from the parallel to the perpendicular to the infill direction) as a factor of sintering conditions (1400°C–1500°C for 3–4 h) were analyzed. Whereas qualitative phase assemblage demonstrated “sintering condition independent” phase stability; grain growth and reduction in porosity were observed in the microstructure with increment in sintering temperature and hold time. Interestingly, at higher temperature and hold time, the compressive (46–72.4 MPa) and tensile strength (16.2–23.1 MPa) properties experienced a trade-off between grain growth and reduction in porosity. The ZP2 scaffolds sintered at lower temperature and hold time qualified for the bone scaffold applications having interconnected porosities, biologically relevant surface roughness, and human bone mimicking mechanical properties. With a unique finite element analysis recipe, the mechanical behavior of the “life-like” reconstructed computer aided design (CAD) geometries identical to real 3D-printed-sintered ZP2 scaffolds was quantitatively predicted.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 2","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762167","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

Effect of relative humidity on the interlayer spacing of phosphate intercalated Mg, Al layered double hydroxide (hydrotalcite-like) crystals 相对湿度对磷插层Mg， Al层状双氢氧化物（类水滑石）晶体层间间距的影响

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2024-10-04 DOI: 10.1111/jace.20178

Titus Reed, Nichole Wonderling, Juan Pablo Gevaudan, John C. Mauro

{"title":"Effect of relative humidity on the interlayer spacing of phosphate intercalated Mg, Al layered double hydroxide (hydrotalcite-like) crystals","authors":"Titus Reed, Nichole Wonderling, Juan Pablo Gevaudan, John C. Mauro","doi":"10.1111/jace.20178","DOIUrl":"https://doi.org/10.1111/jace.20178","url":null,"abstract":"The availability of water and the type of interlayer anions present affect the arrangement and interlayer spacing of layered double hydroxide (LDH). A systematic study of the effect of relative humidity (RH) on the basal spacing of phosphate intercalated, magnesium aluminum LDHs (MgAl–PO4 LDH) was conducted, confirming that MgAl-PO4 LDH exhibit distinct interlayer spacing corresponding to separate low- and high-hydration states produced when exposed to low and high humidity conditions. The transition from the low- to high-hydration form begins when RH exceeds 33% and is accompanied by the transition from one to two interlayers of water. An improved understanding of the effect of RH on MgAl–PO4 LDHs will enable more accurate atomistic modeling and experimental characterization of MgAl–PO4 LDHs and may lead to improvements in the tunability of MgAl-PO4 LDHs for commercial applications such as slow-release fertilizer.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 2","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jace.20178","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762330","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