International Journal of Self-Propagating High-Temperature Synthesis最新文献_第9页

Gravity-Assisted SHS Metallurgy of Cast High-Entropy Mo–Nb–Ta–(Cr,V,Zr,Hf) Alloys 重力辅助SHS冶金铸造高熵Mo-Nb-Ta - （Cr，V,Zr,Hf）合金

IF 0.5

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2025-01-20 DOI: 10.3103/S1061386224700298

V. N. Sanin, D. M. Ikornikov, A. O. Sivakova, D. Yu. Kovalev, O. A. Golosova

引用次数: 0

Self-Propagating High-Temperature Synthesis of SiC-Doped Cu2Se Compound: Thermoelectric Properties 自传播高温合成sic掺杂Cu2Se化合物：热电性质

IF 0.5

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2025-01-20 DOI: 10.3103/S1061386224700304

G. R. Nigmatullina, D. Yu. Kovalev, A. V. Karpov

引用次数: 0

SHS of V2AlC Ceramics Using VO2 as a Starting Material 以VO2为起始材料的V2AlC陶瓷的SHS

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International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2025-01-20 DOI: 10.3103/S1061386224700249

D. Yu. Kovalev, V. I. Vershinnikov

引用次数: 0

Synthesis of TiC–NiCr Composite from Granular Mixture: Different Methods of Adding Binder Components 颗粒状混合物合成TiC-NiCr复合材料：不同方法添加粘结剂组分

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International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2025-01-20 DOI: 10.3103/S1061386224700250

B. S. Seplyarskii, R. A. Kochetkov, T. G. Lisina, N. I. Abzalov

引用次数: 0

Synthesis of Ti–55531 Multicomponent Alloy by the Energy-Efficient Hydride Cycle Method 高效氢化物循环法制备Ti-55531多组分合金

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International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2025-01-20 DOI: 10.3103/S1061386224700237

A. Aleksanyan, D. Mayilyan

{"title":"Synthesis of Ti–55531 Multicomponent Alloy by the Energy-Efficient Hydride Cycle Method","authors":"A. Aleksanyan, D. Mayilyan","doi":"10.3103/S1061386224700237","DOIUrl":"10.3103/S1061386224700237","url":null,"abstract":"This investigation aimed to synthesize Ti–5Al–5V–5Mo–3Cr–1Zr (Ti–55531) alloy by energy-efficient “hydride cycle” (HC) method. From X-ray powder diffraction it was found that the synthesized alloy consists of two phases: HCP α and BCC β. Scanning electron microscopy (SEM) unveiled discernible surface characteristics on the Ti–55531 alloy, delineating two predominant phases with distinct variations in light and dark shades. These observed phases corresponded to microstructural compositions attributed to the α and β phases. The interaction of obtained Ti–55531 alloy with hydrogen in self-propagating high-temperature synthesis (SHS) mode was studied. It was demonstrated that the compacted alloy without preliminary crushing or mechanical treatment could absorb 3.4 wt % of hydrogen during the SHS process. Additionally, it was determined that the synthesized hydride of multicomponent alloy consists of two phases: TiH2 phase with FCC structure and β-phase with BCC structure. The thermal stability of synthesized hydride was analyzed using differential thermal analysis (DTA) method, revealing a hydrogen desorption process characterized by two endo-peaks at 334 and 574°C.","PeriodicalId":595,"journal":{"name":"International Journal of Self-Propagating High-Temperature Synthesis","volume":"33 4","pages":"251 - 257"},"PeriodicalIF":0.5,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142995318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 Doping with Si–B on the Structure of Cast Mo–Nb–Cr–V–Ti–Al High-Entropy Alloy Produced by Gravity-Assisted SHS Metallurgy Si-B掺杂对重力辅助SHS铸造Mo-Nb-Cr-V-Ti-Al高熵合金组织的影响

IF 0.5

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2025-01-20 DOI: 10.3103/S1061386224700341

D. M. Ikornikov, O. A. Golosova, S. L. Silyakov, V. N. Sanin

引用次数: 0

Cast Mo–Cr, W–Cr, and Cr–Al Master Alloys by Gravity-Assisted SHS Metallurgy 用重力辅助SHS冶金法铸造Mo-Cr， W-Cr和Cr-Al中间合金

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International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2025-01-20 DOI: 10.3103/S1061386224700274

A. N. Kubanova, D. M. Ikornikov, V. D. Sanin, D. A. Martynov

{"title":"Cast Mo–Cr, W–Cr, and Cr–Al Master Alloys by Gravity-Assisted SHS Metallurgy","authors":"A. N. Kubanova, D. M. Ikornikov, V. D. Sanin, D. A. Martynov","doi":"10.3103/S1061386224700274","DOIUrl":"10.3103/S1061386224700274","url":null,"abstract":"Cast Mo–Cr, W–Cr, and Cr–Al master alloys were prepared via centrifugal SHS metallurgy. The effect of variation in component fractions in green mixtures (100 – α)(Cr2O3 + Al) + α(MoO3 + Al) and (100 – α)(Cr2O3 + Al) + α(WO3 + Al) on the synthesis of Mo–Cr and W–Cr alloys, respectively, was thermodynamically analyzed. Thermodynamic calculation of Cr–Al master alloy production was presented and provided the necessity of using a complex oxidizing agent, chromium(III) oxide and chromium(VI) oxide in a certain ratio. Experiments for Mo–Cr, W–Cr, and Cr–Al systems proved the necessity of applying overloading at an acceleration of no less than 50 g to prolong the lifetime of the melt. Introduction of functional additives CaF2 (fluorspar) and sodium hexafluoroaluminate Na3[AlF6] (cryolite) to the green mixture lowered the melting temperature of the slag phase (reduced its viscosity) and facilitated the phase separation. EDS and mass spectroscopy analyses showed that the chemical compositions of synthesized master alloys are close to their calculated and target values. XRD results revealed the existence of solid solutions based on target elements.","PeriodicalId":595,"journal":{"name":"International Journal of Self-Propagating High-Temperature Synthesis","volume":"33 4","pages":"295 - 302"},"PeriodicalIF":0.5,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142995314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 Rare Earth (La3+) on the Structural, Microstructural, and Transport Properties of CoCr2O4 for Industrial Applications 稀土（La3+）对工业用CoCr2O4结构、显微组织和输运性能的影响

IF 0.5

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2025-01-20 DOI: 10.3103/S1061386224700353

V. H. Choudapur, Khalid A. Alrashidi, A. M. Sajjan, N. H. Ayachit, Syed Farooq Adil, B. J. Fernandes, V. J. Angadi

{"title":"Effect of Rare Earth (La3+) on the Structural, Microstructural, and Transport Properties of CoCr2O4 for Industrial Applications","authors":"V. H. Choudapur, Khalid A. Alrashidi, A. M. Sajjan, N. H. Ayachit,  Syed Farooq Adil, B. J. Fernandes, V. J. Angadi","doi":"10.3103/S1061386224700353","DOIUrl":"10.3103/S1061386224700353","url":null,"abstract":"In the category of oxides, spinel oxides can be identified by their chemical formula. Spinel oxides have the structure AB2O4 and are distinguished by their amazing magnetic, electric, and multiferroic properties. Additionally, they exhibit a wide variety of functional responses. A description of the experimental, structural, and electrical properties of Co1–xLaxCr2O4 (where x = 0 and 0.05) was presented in this study for the very first time. During the course of the experimental characterization, data on AC conductivity and dielectric parameters, as well as XRD and SEM micrographs, were collected. It was demonstrated beyond a reasonable doubt that a spinel cubic structure is produced by the XRD characteristics of each sample. The scanning electron micrographs (SEM) showed that every single one of the samples is very porous. An overall increasing trend of the dielectric constant was seen in the La3+ doped CoCr2O4 sample as the concentration of La3+ increased. This is a result of the probable hopping of Cr2+ to Cr3+, as well as an increase in the average crystallite size with La doping. Koop’s phenomenological theory was utilized in order to provide an explanation for the AC conductivity, and the hopping process was utilized in order to characterize the electrical properties of each sample. All of the samples exhibited outstanding alternating current conductivity and a low dielectric loss tangent at higher frequency ranges throughout the whole spectrum.","PeriodicalId":595,"journal":{"name":"International Journal of Self-Propagating High-Temperature Synthesis","volume":"33 4","pages":"258 - 265"},"PeriodicalIF":0.5,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142995432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spray Solution Combustion Synthesis of In-Doped ZnO: The Fuel Effect on Microstructure and Thermoelectric Properties 喷雾溶液燃烧合成掺杂氧化锌：燃料对微观结构和热电特性的影响

IF 0.5

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2024-09-06 DOI: 10.3103/S1061386224700171

Zh. S. Yermekova, E. V. Chernyshova, S. S. Yurlov, S. N. Yudin

{"title":"Spray Solution Combustion Synthesis of In-Doped ZnO: The Fuel Effect on Microstructure and Thermoelectric Properties","authors":"Zh. S. Yermekova, E. V. Chernyshova, S. S. Yurlov, S. N. Yudin","doi":"10.3103/S1061386224700171","DOIUrl":"10.3103/S1061386224700171","url":null,"abstract":"ZnO is an earth abundant, safe, environmentally friendly, and relatively inexpensive resource for the application in the manufacturing of thermoelectric materials. In this work hollow spherical particles of Zn0.995In0.005O produced by the spray solution combustion synthesis (SSCS) with the stochiometric (φ1) and excessive (φ3) amount of glycine fuel were sintered at 900°C by the spark plasma sintering technique and thermoelectric properties of sintered Sφ1 and Sφ3 materials was measured. The best thermoelectric figure of merit zT ∼ 0.08 at 1050 K obtained for the materials produced at stoichiometric amount of fuel (φ1). It was shown that lower amount of fuel (φ1) used during the synthesis favors formation of porous and less textured structure which exhibits better thermoelectrical properties. The Lotgering factor (LF) calculated from the intensities of XRD (002) peaks was 0.65 for Sφ3 sample, whereas for Sφ1 sample LF (002) = 0.08. The average pore size of sintered Sφ1 and Sφ3 materials was around 200 nm. The total porosity was about 5–8% for Sφ1 and 2–3% for Sφ3 material.","PeriodicalId":595,"journal":{"name":"International Journal of Self-Propagating High-Temperature Synthesis","volume":"33 3","pages":"214 - 222"},"PeriodicalIF":0.5,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142214070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spatial Gasless Combustion Modes in a Sample with Discrete Structure 离散结构样本中的空间无气燃烧模式

IF 0.5

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2024-09-06 DOI: 10.3103/S1061386224700122

V. G. Prokof’ev

引用次数: 0