Journal of Phase Equilibria and Diffusion最新文献_第4页

Tellurium Oxides: Thermodynamics and Phase Relations in the Te–O System 碲氧化物：Te-O体系的热力学和相关系

IF 1.5 4区材料科学

Journal of Phase Equilibria and Diffusion Pub Date : 2025-02-13 DOI: 10.1007/s11669-025-01175-6

S. Gossé

{"title":"Tellurium Oxides: Thermodynamics and Phase Relations in the Te–O System","authors":"S. Gossé","doi":"10.1007/s11669-025-01175-6","DOIUrl":"10.1007/s11669-025-01175-6","url":null,"abstract":"<div>The Te–O phase diagram and the TeO2 thermodynamic properties are of interest for many industrial fields: nuclear applications, steel making industry and chalcogenide glass processes. Both, the thermodynamic properties and phase diagram of this relevant binary system were reviewed and assessed using the Calphad method. From this assessment, the standard Gibbs free energy and corresponding heat capacity of the binary oxides are calculated as:<div><div>$$begin{gathered} Delta_{{text{f}}} {text{G}}_{{{text{TeO}}_{2} }}^{ circ } left( {{text{KJ}} cdot {text{mol}}^{ - 1} } right) = - 109.646 + 0.1034 cdot T - 0.0064 cdot T cdot ln (T) hfill {text{C}}_{{{text{p}}_{{{text{TeO}}_{2} }} }} left( {{text{J}} cdot {text{K}} cdot {text{mol}}^{ - 1} } right) = 19.59 + 0.0101 cdot {text{T}} - 1.6 cdot 10 ^{- 6}.T^{2} - 186517 cdot T^{ - 2} hfill end{gathered}$$</div></div><div><div>$$begin{gathered} Delta_{{text{f}}} {text{G}}_{{{text{Te}}_{2} {text{O}}_{5} }}^{ circ } left( {{text{KJ}} cdot {text{mol}}^{ - 1} } right) = - 104.81 + 0.1175 cdot T - 0.0077 cdot T cdot ln (T) hfill {text{C}}_{{{text{p}}_{{{text{Te}}_{2} {text{O}}_{5} }} }} left( {{text{J}} cdot {text{K}}^{ - 1} cdot {text{mol}}^{ - 1} } right) = 19.86 + 0.0091 cdot T - 285181 cdot T^{ - 2} hfill end{gathered}$$</div></div><div><div>$$begin{gathered} Delta_{{text{f}}} {text{G}}_{{{text{TeO}}_{3} }}^{ circ } left( {{text{KJ}} cdot {text{mol}}^{ - 1} } right) = - 92.79 + 0.111 cdot T - 0.00776 cdot T cdot ln (T) hfill {text{C}}_{{{text{PTeO}}_{3} }} left( {{text{J}} cdot {text{K}}^{ - 1} cdot {text{mol}}^{ - 1} } right) = 17.475 + 0.013 cdot {text{T}} - 2.085 cdot 10^{ - 6} cdot T^{2} - 280000 cdot T^{ - 2} hfill end{gathered}$$</div></div></div>","PeriodicalId":657,"journal":{"name":"Journal of Phase Equilibria and Diffusion","volume":"46 1","pages":"20 - 30"},"PeriodicalIF":1.5,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11669-025-01175-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143638217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Phase Equilibria in the V-Rich Region of the V-Si-B System at 1400 °C 1400℃时V-Si-B体系富v区相平衡

IF 1.5 4区材料科学

Journal of Phase Equilibria and Diffusion Pub Date : 2025-02-12 DOI: 10.1007/s11669-025-01177-4

Weiguang Yang, Georg Hasemann, Mustafa Carrion Saldaña, Bronislava Gorr, Ruth Schwaiger, Manja Krüger

引用次数: 0

Interdiffusion in the Al-V System in the 800-1000 °C Temperature Range 800 ~ 1000℃范围内Al-V体系的相互扩散

IF 1.5 4区材料科学

Journal of Phase Equilibria and Diffusion Pub Date : 2025-02-08 DOI: 10.1007/s11669-025-01179-2

V. M. Silveira, N. Chaia, K. E. Borowski, A. S. Ramos, E. C. Ramos, C. A. Nunes, G. C. Coelho

{"title":"Interdiffusion in the Al-V System in the 800-1000 °C Temperature Range","authors":"V. M. Silveira, N. Chaia, K. E. Borowski, A. S. Ramos, E. C. Ramos, C. A. Nunes, G. C. Coelho","doi":"10.1007/s11669-025-01179-2","DOIUrl":"10.1007/s11669-025-01179-2","url":null,"abstract":"<div>Vanadium and its alloys have potential for application as fuel cladding in new fast breeder reactors cooled by sodium. Diffusion aluminide coatings could be a solution of choice in providing protection against high-temperature corrosion by liquid sodium or residual oxygen for these materials. In this work, multilayered coatings were formed on V and V-44Al substrates by halide activated pack cementation, using CrCl3 as transport agent and pure aluminum (high activity) as master alloy. Two types of diffusion couples, V/Al and V-44Al/Al, were investigated in order to determine the growth kinetics of the aluminide compounds in the 800-1000 °C temperature range. The growth of the saturated Vss as well as of the VAl3 and V5Al8 layers was controlled exclusively by solid state diffusion following a parabolic law, allowing the determination of the parabolic growth constants. Wagner’s analysis was adopted to calculate the integrated interdiffusion coefficients, resulting in values ranging approximately from 10−10 to 10−12 cm2/s for temperatures between 800 and 1000 °C. In general, VAl3 has the highest ({widetilde{text{D}}}_{text{int}}) values in relation to those of the other two layers, considering the nominal temperatures (except for 1000 °C).</div>","PeriodicalId":657,"journal":{"name":"Journal of Phase Equilibria and Diffusion","volume":"46 1","pages":"204 - 214"},"PeriodicalIF":1.5,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143638520","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}

引用次数: 0

Mass-Preserving Modeling of Diffusion in a Closed System 封闭系统中扩散的质量保持模型

IF 1.5 4区材料科学

Journal of Phase Equilibria and Diffusion Pub Date : 2025-02-01 DOI: 10.1007/s11669-025-01174-7

Dmitri V. Malakhov

引用次数: 0

Phase Equilibria in the Tm-Co, Tm-Fe and Tm-Co-Fe Systems Tm-Co、Tm-Fe和Tm-Co- fe体系的相平衡

IF 1.5 4区材料科学

Journal of Phase Equilibria and Diffusion Pub Date : 2025-01-08 DOI: 10.1007/s11669-024-01171-2

I. Fartushna, D. Kapush, I. Tikhonova, V. Kremenytskyi, M. Bulanova

{"title":"Phase Equilibria in the Tm-Co, Tm-Fe and Tm-Co-Fe Systems","authors":"I. Fartushna, D. Kapush, I. Tikhonova, V. Kremenytskyi, M. Bulanova","doi":"10.1007/s11669-024-01171-2","DOIUrl":"10.1007/s11669-024-01171-2","url":null,"abstract":"<div>Phase diagrams of the ternary Tm-Co-Fe and boundary binary systems Tm-Co and Tm-Fe were constructed in the entire composition ranges using differential thermal analysis, powder x-ray diffraction, microscopic examination and electron probe microanalysis. The Tm-Co phase diagram was plotted for the first time. A new binary compound Tm12Co7 was found and its crystal structure was established. The Tm-Fe phase diagram was revised: all invariant temperatures were updated, and disagreements with previously reported data were resolved. The Tm-Co-Fe system was studied for the first time. The results are given in the form of liquidus and solidus projections, isothermal sections at 1200 and 1000 °C, and Scheil reaction scheme. Ternary compounds are not formed in the system. Instead, the isostructural phases of Tm-Co and Tm-Fe systems form continuous solid solutions (αCo,γFe), Tm2(Co,Fe)17, Tm(Co,Fe)3, Tm(Co,Fe)2 at all studied temperatures. The Tm6Fe23 phase dissolves up to 45 at.% Co. The solubility of Fe in Tm-Co compounds is much lower. Five three-phase regions are present on the solidus projection, which form from one eutectic and four transition (U) type invariant reactions. The boundaries of the primary crystallization regions of phases, types and coordinates of invariant and monovariant equilibria are determined. Isothermal sections differ from the solidus projection by: (i) the presence of wide areas of melt, resulting in the absence of Tm3Co and Tm12Co7 compounds and (ii) the absence of TmCo5 compound. As a result, there are two three-phase regions at 1200 and 1000 °C.</div>","PeriodicalId":657,"journal":{"name":"Journal of Phase Equilibria and Diffusion","volume":"46 1","pages":"100 - 118"},"PeriodicalIF":1.5,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143638523","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}

引用次数: 0

Experimental Investigation of Phase Equilibria in the Y-Co-Cu Ternary System Y-Co-Cu三元体系相平衡的实验研究

IF 1.5 4区材料科学

Journal of Phase Equilibria and Diffusion Pub Date : 2024-12-28 DOI: 10.1007/s11669-024-01170-3

S. Y. Yang, X. Liu, Q. R. Yao, J. Wang, G. H. Rao, H. Y. Zhou

{"title":"Experimental Investigation of Phase Equilibria in the Y-Co-Cu Ternary System","authors":"S. Y. Yang, X. Liu, Q. R. Yao, J. Wang, G. H. Rao, H. Y. Zhou","doi":"10.1007/s11669-024-01170-3","DOIUrl":"10.1007/s11669-024-01170-3","url":null,"abstract":"<div>The phase equilibria of the Y-Co-Cu ternary system were investigated experimentally by scanning electron microscopy with energy dispersive spectroscopy and X-ray diffraction. The experimental results did not indicate any ternary intermetallic compounds and revealed that the YCo5 and YCu6 binary intermetallic compounds form the continuous solid solution phase Y(Co, Cu)5 because of having the same space groups. According to the measured phase compositions at 873 K, the solid solubilities of Co in fcc(Cu), YCu4, Y2Cu7 and YCu2 are 8.6, 1.7, 44.0 and 8.6 at.%, respectively, while those of Cu in fcc(Co), Y2Co17, Y2Co7, YCo3, YCo2, Y2Co3, Y6Co7, Y4Co3, Y8Co5 and Y3Co were determined to be 15.8, 6.4, 8.1, 13.5, 7.9, 1.2, 1.4, 3.9, 7.6 and 10.6 at.%, respectively. Furthermore, at 1073 K the solid solubilities of Co in fcc(Cu), YCu4, Y2Cu7 and YCu2 were measured to be 3.9, 2.5, 40.0 and 10.8 at.%, respectively, while those of Cu in fcc(Co), Y2Co17, Y2Co7, YCo3, YCo2, Y2Co3 and YCo were determined to be 13.6, 9.4, 7.4, 13.7, 10.3, 2.3 and 31.4 at.%, respectively. Two isothermal sections of the Y-Co-Cu ternary system at 1073 K and 873 K were established finally.</div>","PeriodicalId":657,"journal":{"name":"Journal of Phase Equilibria and Diffusion","volume":"46 1","pages":"133 - 150"},"PeriodicalIF":1.5,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143638500","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}

引用次数: 0

Special Issue in Memory of Mats Hillert 纪念马茨·希勒特特刊

IF 1.5 4区材料科学

Journal of Phase Equilibria and Diffusion Pub Date : 2024-12-17 DOI: 10.1007/s11669-024-01168-x

John Ågren, Qing Chen, Greta Lindwall, Malin Selleby, Wei Xiong, Ursula R. Kattner

引用次数: 0

The Legacy of “The Regular Solution Model for Stoichiometric Phases and Ionic Melts” “化学计量相和离子熔体的规则溶液模型”的遗产

IF 1.5 4区材料科学

Journal of Phase Equilibria and Diffusion Pub Date : 2024-12-14 DOI: 10.1007/s11669-024-01163-2

Bo Sundman, Nathalie Dupin, Marcel H. F. Sluiter, Suzana G. Fries, Christine Guéneau, Bengt Hallstedt, Ursula R. Kattner, Malin Selleby

引用次数: 0

Thermodynamic Assessment of the Mg–La–Nd System Mg-La-Nd体系的热力学评价

IF 1.5 4区材料科学

Journal of Phase Equilibria and Diffusion Pub Date : 2024-12-04 DOI: 10.1007/s11669-024-01169-w

Tao Luo, Kai Zhu, Hongwei Xiong, Weisen Zheng, Jingya Wang, Xiao-Gang Lu

引用次数: 0

CALPHAD-Type Reassessment of Cu-Si and Full Assessment of the Al-Cu-Si Systems Cu-Si的calphad型再评估和Al-Cu-Si体系的全面评估

IF 1.5 4区材料科学

Journal of Phase Equilibria and Diffusion Pub Date : 2024-12-02 DOI: 10.1007/s11669-024-01160-5

Ales Kroupa, Ondrej Zobac, Adela Zemanova, Klaus W. Richter

{"title":"CALPHAD-Type Reassessment of Cu-Si and Full Assessment of the Al-Cu-Si Systems","authors":"Ales Kroupa, Ondrej Zobac, Adela Zemanova, Klaus W. Richter","doi":"10.1007/s11669-024-01160-5","DOIUrl":"10.1007/s11669-024-01160-5","url":null,"abstract":"<div>The theoretical assessment of the Al-Cu-Si was carried out in this work based on recent experimental studies (Riani et al. in Intermetallics, 17:154-164, 2009; He et al. in CALPHAD, 33:200-210, 2009. http://dx.doi.org/10.1016/j.calphad.2008.07.015; Ponweiser N and Richter KW in J. of Alloys and Compd, 512:252-263, 2012; Hallstedt et al. in CALPHAD, 53:25-38, 2016; Zobac et al in J Mater Sci, 55:5322-15333, 2020). The reassessment of the Cu-Si system was also carried out in the scope of this work, as experimental data indicates reasonable solubility of Al in all intermetallic phases in the Cu-Si binary system, and the stoichiometric models used in previous assessments of the Cu-Si binary system are not fully suitable for the extension into the ternary system. Excellent agreement was reached for the reassessment of the Cu-Si system with previous works, and new original results were obtained during the assessment of the ternary system. The high solubility of Si in the β(bcc) phase at high temperatures was modelled to explain experimental inconsistencies in the Cu-rich corner between 600 and 800 °C, and this assumption was confirmed experimentally. All main features of the experimental Al-Cu-Si phase diagram were reproduced well by theoretical modelling.</div>","PeriodicalId":657,"journal":{"name":"Journal of Phase Equilibria and Diffusion","volume":"45 6","pages":"1206 - 1243"},"PeriodicalIF":1.5,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11669-024-01160-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142870319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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