Journal of the American Ceramic Society最新文献_第9页

Outstanding pure green upconversion luminescence in LaZrTa3O11:Er3+/Yb3+ phosphors prepared by molten salt synthesis with B2O3 flux

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2024-11-19 DOI: 10.1111/jace.20262

Xuekai Wang, Yongze Cao, Xianglan Yan, Guojian Li, Xiangping Li, Jinshu Zhang, Baojiu Chen

引用次数: 0

Laboratory and synchrotron x-ray micro–computed tomography to shed light on degradation features of corroded Roman glass

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2024-11-18 DOI: 10.1111/jace.20241

Roberta Zanini, Giulia Franceschin, Luisa Vigorelli, Gianluca Iori, Lara Chiaberge, Elena Longo, Laura Guidorzi, Alessandro Re, Alessandro Lo Giudice, Arianna Traviglia

{"title":"Laboratory and synchrotron x-ray micro–computed tomography to shed light on degradation features of corroded Roman glass","authors":"Roberta Zanini, Giulia Franceschin, Luisa Vigorelli, Gianluca Iori, Lara Chiaberge, Elena Longo, Laura Guidorzi, Alessandro Re, Alessandro Lo Giudice, Arianna Traviglia","doi":"10.1111/jace.20241","DOIUrl":"https://doi.org/10.1111/jace.20241","url":null,"abstract":"This study explores the three-dimensional structure of Roman glass through the combined use of laboratory and phase-contrast synchrotron x-ray micro–computed tomography. This original approach validates a noninvasive analytical procedure designed to enhance the understanding of glass degradation mechanisms, crucial for the preservation of historical artefacts. The high-resolution images obtained reveal the intricate internal structure and morphology of various forms of glass deterioration, including cracking, pitting, and the formation of multilayered iridescent patinas. The research provides compelling evidence of corrosion processes and interaction mechanisms with burial soil, shedding light on the chemical and physical interactions that occur over centuries. By characterizing and examining the long-term alteration of ancient glass, this work contributes to the field of archaeometry, offering insights into how different types of glass withstand the test of time in diverse environmental conditions. The findings have important implications for conservation strategies, enabling better preservation techniques for glass artefacts.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 3","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jace.20241","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143116241","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

New perspective on the role of grain boundaries for hot-corrosion studies on sintered 3YSZ ceramic

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2024-11-18 DOI: 10.1111/jace.20263

Spandan Prasad Sahu, Himirkanti Sarkar, Lakshaman Kumar, Anirban Chowdhury

{"title":"New perspective on the role of grain boundaries for hot-corrosion studies on sintered 3YSZ ceramic","authors":"Spandan Prasad Sahu, Himirkanti Sarkar, Lakshaman Kumar, Anirban Chowdhury","doi":"10.1111/jace.20263","DOIUrl":"https://doi.org/10.1111/jace.20263","url":null,"abstract":"The hot-corrosion behavior of sintered 3 mol.% yttria-stabilized zirconia (3YSZ) ceramic with significant (1:4 in ratio) variation in grain sizes was investigated. Contrary to the popular perception of the role of grain boundaries, ceramics with smaller grains portrayed remarkable hot-corrosion resistance despite having ∼450% more grain boundaries compared to their counterpart. The mechanism behind a rather ‘unusual’ role of the grain boundary in deciding the corrosion pathways for 3YSZ ceramic systems was examined. The affinity of NaVO3 to react with Y2O3 was found to be a crucial step for the initiation of corrosion and this process had no potential influence on the fraction of grain boundaries in the system. A phase transformation (tetragonal to monoclinic) induced porosity created easy path for the molten liquid to flow inside the ZrO2 matrix. The ceramic with a smaller grain size resisted such a transformation and resulted in a much lower penetration depth for the corrosion to proceed further inside the matrix. Although grain boundaries are usually portrayed as weak points for corrosion, this study illustrates an alternate pathway using which corrosion can be averted in a fine grained 3YSZ ceramic.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 3","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143116240","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

Impacts of hydroxyl and bond energy on laser-induced damage in mid-infrared chalcogenide glass

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2024-11-18 DOI: 10.1111/jace.20256

Yuyang Wang, Xiaolin Liang, Kai Jiao, Yuze Wang, Qinnan Fang, Shengchuang Bai, Shixun Dai, Pingxue Li, Xunsi Wang, Rongping Wang

{"title":"Impacts of hydroxyl and bond energy on laser-induced damage in mid-infrared chalcogenide glass","authors":"Yuyang Wang, Xiaolin Liang, Kai Jiao, Yuze Wang, Qinnan Fang, Shengchuang Bai, Shixun Dai, Pingxue Li, Xunsi Wang, Rongping Wang","doi":"10.1111/jace.20256","DOIUrl":"https://doi.org/10.1111/jace.20256","url":null,"abstract":"Mid-infrared chalcogenide glasses often suffer from a low laser damage threshold due to their weak bond energy and the presence of impurities, particularly at the specific wavelength of 2.94 µm, which is widely used in medical applications. In this paper, we first investigated the effect of the hydroxyl (OH⁻) peak absorption coefficient on the laser damage properties of As2S3 glasses. The surface temperature distribution of chalcogenide glasses under laser irradiation was also analyzed using the finite element method (FEM) and in-situ heat monitoring. The results showed that the surface temperature of the glass increases exponentially with the rise in the absorption coefficient at the OH− peak position. Subsequently, Raman spectra analysis and average bond energy (ABE) theory were employed to compare five typical chalcogenide glasses without hydroxyl absorption, revealing the relationship between the laser damage threshold and the bond energies of the glass networks. Finally, an optimized glass composition of Ge25As10S65 was identified, possessing the highest laser damage threshold of 340.98 J/cm2, more than twice that of traditional As2S3. These findings provide essential glass host and data references for the future development of mid- and far-infrared optical fibers and waveguide devices.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 3","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143116243","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

Key phase diagram experiments and thermodynamic modeling of the ZnO‒B2O3, ZnO‒SiO2, and ZnO‒B2O3‒SiO2 systems

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2024-11-15 DOI: 10.1111/jace.20252

Min-Kyung Kim, Jaesung Lee, In-Ho Jung

引用次数: 0

CMAS corrosion resistance of rare earth phosphates at high temperatures for environmental barrier coatings

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2024-11-15 DOI: 10.1111/jace.20251

Bishnu Pada Majee, Keith Bryce, Liping Huang, Jie Lian

{"title":"CMAS corrosion resistance of rare earth phosphates at high temperatures for environmental barrier coatings","authors":"Bishnu Pada Majee, Keith Bryce, Liping Huang, Jie Lian","doi":"10.1111/jace.20251","DOIUrl":"https://doi.org/10.1111/jace.20251","url":null,"abstract":"Phase stability, thermal properties, and calcium–magnesium–alumina–silicate (CMAS) resistance of LuPO4 at 1300°C, 1400°C, and 1500°C were studied to evaluate its potential as an environmental barrier coating (EBC) for SiC-based ceramic-matrix composites (CMCs). Its coefficient of thermal expansion (∼5.69 × 10−6°C−1) is close to that of SiC-based CMCs. At 1300°C, a dense reaction layer of Ca8MgLu(PO4)7 forms and inhibits CMAS penetration; however, no such layer forms at 1400°C and 1500°C, leading to CMAS infiltration along grain boundaries. Prolonged (45 and 96 hours) CMAS corrosion of LuPO4 at 1300°C showed the formation of a disilicate (Lu2Si2O7) phase along with Ca8MgLu(PO4)7. A multicomponent rare earth phosphate (Lu0.2Yb0.2Er0.2Y0.2Gd0.2)PO4 shows improved CMAS resistance at 1400°C due to higher grain boundary stability and slower dissolution rate of rare earth elements into molten CMAS than single component rare earth phosphate. The mechanisms of CMAS corrosion and the kinetics of the formation of protective reaction layers in LuPO4 and (Lu0.2Yb0.2Er0.2Y0.2Gd0.2)PO4 were elucidated. Multicomponent design is needed to increase grain boundary stability and reduce dissolution rate into molten CMAS for REPO4-based EBCs.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 3","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115528","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

Pressureless sintering and properties of additively manufactured ZrB2–SiC

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2024-11-15 DOI: 10.1111/jace.20250

Marharyta Lakusta, Nicholas M. Timme, Jeremy L. Watts, William G. Fahrenholtz, Gregory E. Hilmas, David W. Lipke

{"title":"Pressureless sintering and properties of additively manufactured ZrB2–SiC","authors":"Marharyta Lakusta, Nicholas M. Timme, Jeremy L. Watts, William G. Fahrenholtz, Gregory E. Hilmas, David W. Lipke","doi":"10.1111/jace.20250","DOIUrl":"https://doi.org/10.1111/jace.20250","url":null,"abstract":"Densification behavior, grain growth kinetics, mechanical and thermal properties of pressurelessly sintered zirconium diboride–silicon carbide (ZrB2–SiC) fabricated by extrusion of high solids loading pastes have been studied. The effects of sintering temperature (1600–2300°C), heating rate during constant heating rate sintering (10–50°C/min), and time during isothermal sintering (3–24 h) on density and grain size were examined. The apparent activation energy for densification was determined to be 940 ± 90 kJ/mol, suggesting lattice diffusion as the dominant sintering mechanism. Grain growth of both ZrB2 and SiC followed a normal grain growth power law with grain growth exponent n = 2 indicating diffusion-controlled coarsening. The activation energies for grain growth were 267 ± 10 kJ/mol for ZrB2 and 264 ± 15 kJ/mol for SiC. Sintered microstructures were homogeneous with relative densities of 95%–99% depending on heat treatment schedules. Flexural strength (270 ± 40 MPa) was lower than hot-pressed materials of equivalent composition by a factor of two or more due to the presence of pores originating from paste inhomogeneities. Young's modulus (482 ± 20 GPa) and Vicker's microhardness (22 ± 5 MPa HV0.2), as well as thermal diffusivity and thermal conductivity up to 1800°C were found to be comparable to hot-pressed materials.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 3","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115531","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

Temperature-dependent heat transfer deterioration in ordered graphene/ceramic composites

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2024-11-12 DOI: 10.1111/jace.20253

Baoxi Zhang, Xiaohan Zhou, Zhanxiang Zhang, Shenglong Rui, Jiangwen Wang, Weiwei Zhang

{"title":"Temperature-dependent heat transfer deterioration in ordered graphene/ceramic composites","authors":"Baoxi Zhang, Xiaohan Zhou, Zhanxiang Zhang, Shenglong Rui, Jiangwen Wang, Weiwei Zhang","doi":"10.1111/jace.20253","DOIUrl":"https://doi.org/10.1111/jace.20253","url":null,"abstract":"Boosting heat transfer of ultrahigh temperature ceramics (UHTCs) with dimensional-crossover graphene has become an increasing challenge for improving the thermal protective performance of new-generation spacecraft. Yet its characteristics of anisotropic and high interfacial thermal resistance inevitably cause heat transfer deterioration at high temperatures. Here we develop a few ZrB2/graphene/ZrB2 interface-dominated diffuse models that are driven by bonding configurations and thermal converger. It has been found that forming stronger bonding configurations by Zr-C interfacial bonding and designing a preferred thermal converger by ordered graphene are both unarguable ways of suppressing high-temperature heat transfer deterioration. Each Zr-C interfacial bonding serves as an independent sluice gate to accelerate heat flow. More high-frequency phonons are excited at high temperature, which augments the interfacial thermal conductance from 38.5 to 335.4 MW·m−2·K−1 at 700 K. Impressively, a concept of thermal converger inspires us to adopt ordered graphene for changing the diverging behavior in isotropic ZrB2 composites. Its convergent process combines with anisotropic characteristics to transform the isotropic heat flow into the highly ordered graphene. Their thermal conductance can be regulated from minimum (2.5) to maximum (80.8 W·m−1·K−1) by rotating the ordered graphene from 90° to 7.5°. This work paves an optimal way for manipulating the heat transfer of UHTCs.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 3","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143114402","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

Multisource energy harvesting using (Ba,Ca)(Zr,Ti)O3 oscillating under temperature gradient

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2024-11-11 DOI: 10.1111/jace.20245

Ryota Yamamoto, Michael Schwarz, Alexander Martin, Julia Mergheim, Ken-ichi Kakimoto

引用次数: 0

Immobilization of arsenic wastes and retardation effect on cement hydration: Experimental and molecular dynamic analysis

IF 3.5 3区材料科学

Journal of the American Ceramic Society Pub Date : 2024-11-11 DOI: 10.1111/jace.20240

Yuting Chen, Qiang Yuan, Zheyu Zhu, Linglin Xu, Zixuan Sun, Lingli Xue, Kai Wu

{"title":"Immobilization of arsenic wastes and retardation effect on cement hydration: Experimental and molecular dynamic analysis","authors":"Yuting Chen, Qiang Yuan, Zheyu Zhu, Linglin Xu, Zixuan Sun, Lingli Xue, Kai Wu","doi":"10.1111/jace.20240","DOIUrl":"https://doi.org/10.1111/jace.20240","url":null,"abstract":"This work was designed to investigate the influence of arsenic dosage, variety on the mechanical properties, hydration, and solidification from the perspective of Portland cement (PC) performance evolution. The results demonstrate that using PC could solidify the arsenic wastes effectively, with arsenic leaching concentrations consistently below 5 mg/L. Arsenic wastes retard cement hydration, leading to a slower rate of hydrates formation, disrupting the calcium silicate hydrate (C–S–H) stacking structure, and thus detrimental to strength development especially at early age. The adverse effect is highly dependent on the arsenic variety. The insoluble calcium arsenate exhibits the least impact, while the arsenates show the largest challenging to immobilization due to the instability of hydrates. Molecular dynamic simulation indicates that arsenic can be chemically immobilized with Ca2+, and be physically adsorbed onto the positively charged C–S–H by forming As-O···Ca···Si-O units, accompanied by a significant reduction in adsorption energy by 46.5%. The arsenic solidification behavior provides a basis for the resource utilization of arsenic wastes in cementitious materials.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 3","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143114286","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