International Journal of Self-Propagating High-Temperature Synthesis最新文献_第2页

Ultrasonic-Assisted Solution Combustion Synthesis of MgO Nanopowders: Microstructural Control and Functional Properties 超声辅助溶液燃烧合成纳米氧化镁粉体：微观结构控制及功能性能

IF 0.6

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2026-05-26 DOI: 10.3103/S1061386226600066

S.-J. Kim, S.-H. Han, H.-Y. Pang, R.-J. Kim

{"title":"Ultrasonic-Assisted Solution Combustion Synthesis of MgO Nanopowders: Microstructural Control and Functional Properties","authors":"S.-J. Kim, S.-H. Han, H.-Y. Pang, R.-J. Kim","doi":"10.3103/S1061386226600066","DOIUrl":"10.3103/S1061386226600066","url":null,"abstract":"Magnesium oxide (MgO) nanopowders were synthesized by an ultrasonic-assisted solution combustion synthesis route using magnesium nitrate as oxidizer and sucrose as fuel. The influence of ultrasonic pretreatment and fuel-to-oxidizer ratio on the phase composition, microstructure, surface area, particle size distribution, and dispersibility of the resulting MgO powders was systematically investigated. X-ray diffraction analysis confirmed the formation of single-phase cubic MgO for all samples. Compared to conventional solution combustion synthesis, ultrasonic pretreatment led to a pronounced reduction in crystallite size and particle agglomeration, accompanied by a significant increase in specific surface area. Under optimized conditions, MgO nanopowders with a high specific surface area of approximately 340 m2 g–1 and a narrow particle size distribution were obtained. The improved microstructural characteristics were attributed to cavitation-induced modification of precursor chemistry and more homogeneous combustion reactions. In addition, the functional properties of the synthesized MgO nanopowders were evaluated through antibacterial activity tests, demonstrating their potential applicability in advanced inorganic and functional materials.","PeriodicalId":595,"journal":{"name":"International Journal of Self-Propagating High-Temperature Synthesis","volume":"35 2","pages":"103 - 110"},"PeriodicalIF":0.6,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148011885","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

Low Temperature Combustion Synthesis and Photoluminescence Studies of YAG:Ce,Eu Phosphor YAG:Ce，Eu荧光粉的低温燃烧合成及光致发光研究

IF 0.6

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2026-03-01 DOI: 10.3103/S1061386225600199

M. Upasani, Y. More, K. Sharma, B. P. Butey, S. V. Moharil

引用次数: 0

Crystal Structure and Hydrogen Storage Properties of Ti30V60Mn3.3Cr6.6 Alloy Ti30V60Mn3.3Cr6.6合金的晶体结构及储氢性能

IF 0.6

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2026-03-01 DOI: 10.3103/S1061386225600151

F. J. Khan, A. Kumar, S. Banerjee, A. Kamble

引用次数: 0

Self-Propagating High-Temperature Synthesis of Thermoelectric Mg2Si 热电Mg2Si的自传播高温合成

IF 0.6

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2026-03-01 DOI: 10.3103/S1061386225700402

A. E. Sytschev, A. V. Karpov, O. D. Boyarchenko, A. O. Sivakova, P. A. Lazarev

引用次数: 0

Reactivity of W–PTFE Powder Mixtures with Energy Additives W-PTFE粉末混合物与能量添加剂的反应性

IF 0.6

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2026-03-01 DOI: 10.3103/S1061386225700384

S. A. Seropyan, I. V. Saikov, E. V. Petrov, D. V. Shakhray

{"title":"Reactivity of W–PTFE Powder Mixtures with Energy Additives","authors":"S. A. Seropyan, I. V. Saikov, E. V. Petrov, D. V. Shakhray","doi":"10.3103/S1061386225700384","DOIUrl":"10.3103/S1061386225700384","url":null,"abstract":"The combustion and ignition behaviors of W–PTFE powder mixtures, incorporating both tungsten micro- and nanoparticles along with high-energy additives, such as Ti, Ni + Al, Ti + 2B, and TiH2, were examined. Through thermodynamic and experimental analysis, it was determined that mixtures containing tungsten nanoparticles (nW) achieve 50–60% faster ignition and up to fivefold higher burning velocities compared to those with microparticles (μW), primarily due to an enlarged contact surface area. Among the additives, Ni + Al in nW–PTFE led to the highest synthesis completeness (50–65%), whereas 10 wt % Ti significantly boosted both the combustion temperature (reaching 2000°C) and burning velocity (up to 2.8 mm/s). Specifically, the nW + PTFE + 5 wt % (Ni + Al) and nW + PTFE + 10 wt % Ti mixtures demonstrated exceptional overall performance in terms of synthesis completeness, burning velocity, and combustion temperature, positioning them as compelling reactive material candidates. These results emphasize the crucial role of high-energy additives and particle size in controlling reaction mechanisms and achieving desired energetic characteristics.","PeriodicalId":595,"journal":{"name":"International Journal of Self-Propagating High-Temperature Synthesis","volume":"35 1","pages":"20 - 30"},"PeriodicalIF":0.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147335736","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

Electrothermographic Investigation of Rapid Exothermic Gas–Solid Reactions in Refractory Materials 耐火材料中快速放热气固反应的电热学研究

IF 0.6

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2026-03-01 DOI: 10.3103/S1061386225600187

T. Ayvazyan

{"title":"Electrothermographic Investigation of Rapid Exothermic Gas–Solid Reactions in Refractory Materials","authors":"T. Ayvazyan","doi":"10.3103/S1061386225600187","DOIUrl":"10.3103/S1061386225600187","url":null,"abstract":"This study presented the formation and oxidation of refractory materials investigated with a high-speed electro-thermographic method specifically designed to probe rapid exothermic gas–solid reactions. Thin metallic wire specimens of Ta or tantalum carbide (TaC, Ta2C) coated Ta served as both heating elements and reactants, enabling controllable heating of specimen up to 5 × 105 K/s under various gas environments. Real-time measurements of electrical parameters and temperature at 10 kHz captured reaction dynamics across 900–2500 K. Two distinct heating modes were employed: (i) temperature-controlled (isothermal or linear heating) and (ii) power-controlled, which simulates quasi-isothermal reaction conditions. This dual approach allowed detailed exploration of TaC/Ta2C coating synthesis on Ta wires and identification of the critical parameters separating slow oxidation from ignition of tantalum and tantalum carbides. Gravimetric measurements provided kinetic data on carbidization and oxidation across varied experimental conditions, while rapid quenching of specimens preserved intermediate states for ex-situ characterization by X-ray diffraction and electron microscopy.","PeriodicalId":595,"journal":{"name":"International Journal of Self-Propagating High-Temperature Synthesis","volume":"35 1","pages":"12 - 19"},"PeriodicalIF":0.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147335735","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

Low-Energy Mechanical Activation Impact on the Ignition Temperature of 3Ni + Al Powder Mixture 低能机械活化对3Ni + Al粉末混合物着火温度的影响

IF 0.6

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2026-03-01 DOI: 10.3103/S106138622560014X

E. N. Boyangin, O. V. Lapshin

{"title":"Low-Energy Mechanical Activation Impact on the Ignition Temperature of 3Ni + Al Powder Mixture","authors":"E. N. Boyangin, O. V. Lapshin","doi":"10.3103/S106138622560014X","DOIUrl":"10.3103/S106138622560014X","url":null,"abstract":"The effect of low-energy mechanical activation (LEMA) of 3Ni + Al powder mixtures on their ignition temperature was theoretically and experimentally investigated. LEMA proved instrumental in creating structural defects and significant morphological changes, thereby critically influencing subsequent high-temperature synthesis kinetics. It was determined that LEMA reduces ignition temperature by lowering chemical reaction activation energy and increasing the interfacial surface area. During the initial stages of activation, crystal defect formation served as the primary mechanism, raising the internal energy and lowering the ignition barrier. Extended activation led to prominent morphological transformations, including particle size reduction, decreased structural heterogeneity, and layered mechanocomposite formation. These alterations transitioned the reaction mechanism from diffusion-controlled to interfacial-controlled, subsequently lowering the required activation energy. The findings underscore the critical role of morphological evolution in enhancing system reactivity, especially under prolonged activation. This research establishes a scientific foundation for developing efficient methods to produce Ni–Al-based materials, highly relevant for high-temperature applications in the energy, aerospace, and chemical industries.","PeriodicalId":595,"journal":{"name":"International Journal of Self-Propagating High-Temperature Synthesis","volume":"35 1","pages":"39 - 46"},"PeriodicalIF":0.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147335737","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

One-Step Synthesis of High-Entropy Metal Nitride (TiZrHfNbTa)N 高熵金属氮化物（TiZrHfNbTa）N的一步合成

IF 0.6

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2026-03-01 DOI: 10.3103/S1061386225700396

D. Yu. Kovalev, S. G. Vadchenko, A. R. Bobozhanov, A. S. Rogachev

{"title":"One-Step Synthesis of High-Entropy Metal Nitride (TiZrHfNbTa)N","authors":"D. Yu. Kovalev, S. G. Vadchenko, A. R. Bobozhanov, A. S. Rogachev","doi":"10.3103/S1061386225700396","DOIUrl":"10.3103/S1061386225700396","url":null,"abstract":"High-entropy nitrides have the potential to enhance mechanical properties and high-temperature stability compared to mono- or binary nitrides. They are particularly promising for applications requiring high temperatures and hardness. Here, we report on a facile one-step route for the fabrication of a high-entropy nitride powder (TiZrHfNbTa)Nx. The novel approach employs the mechanical alloying of metal powders within a planetary ball mill under elevated nitrogen pressure. Ball milling a mixture of five transition metals under a nitrogen pressure of 0.6 MPa for 60–90 min leads to the formation of a high-entropy nitride with a rock-salt crystal structure. The as-prepared powder exhibits nanoscale crystallites and a uniform distribution of metals within the cationic sublattice. The total nitrogen content of the synthesized powder is 8.9 wt %, indicating the formation of a non-stoichiometric high-entropy nitride (TiZrHfNbTa)N0.83. The scalable technological approach developed in the current study could also be used to produce other multielement nitrides, thereby expanding the range of nitride ceramics available.","PeriodicalId":595,"journal":{"name":"International Journal of Self-Propagating High-Temperature Synthesis","volume":"35 1","pages":"47 - 58"},"PeriodicalIF":0.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147335730","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

Regularities of Iron Nitriding via Chemical Oven Method 化学炉法渗氮铁的规律

IF 0.6

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2026-03-01 DOI: 10.3103/S1061386225700372

T. V. Barinova, E. I. Volchenko, I. E. Semenchuk, G. R. Nigmatullina, M. I. Alymov

引用次数: 0

Numerical Simulation of Gasless Combustion Wave Propagation in a Cylindrical Ti–Si Layer 无气燃烧波在圆柱形Ti-Si层中的传播数值模拟

IF 0.6

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2026-03-01 DOI: 10.3103/S1061386225700360

V. G. Prokof’ev

引用次数: 0