International Journal of Self-Propagating High-Temperature Synthesis最新文献_第7页

Influence of Al/Ca Ratio on Synthesis of Mo–Si–B Alloy from MoO3/Al/Ca/Si/B/Al2O3 Mixture Al/Ca比对MoO3/Al/Ca/Si/B/Al2O3混合物合成Mo-Si-B合金的影响

IF 0.6

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2025-06-23 DOI: 10.3103/S1061386225700116

Yu. S. Vdovin, V. I. Yukhvid, I. D. Kovalev

引用次数: 0

Synthesis of Porous Co3O4 NPs by Solution Combustion: Influence of F/O Ratio on Morphology and Porosity 溶液燃烧合成多孔Co3O4 NPs: F/O比对形貌和孔隙率的影响

IF 0.6

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2025-06-23 DOI: 10.3103/S1061386225700074

M. Hashami, A. Imash, Z. Mansurov

{"title":"Synthesis of Porous Co3O4 NPs by Solution Combustion: Influence of F/O Ratio on Morphology and Porosity","authors":"M. Hashami, A. Imash, Z. Mansurov","doi":"10.3103/S1061386225700074","DOIUrl":"10.3103/S1061386225700074","url":null,"abstract":"In this study, porous Co3O4 nanoparticles (NPs) were synthesized through solution combustion synthesis (SCS) method. Precursor cobalt nitrate hexahydrate as the oxidizer and glycine as the fuel were used, focusing on the regular alterations to the fuel-to-oxidizer (F/O) ratio so as to achieve the desired characteristics of the produced nanoparticles in terms of their morphology and structure. XRD analysis confirmed the formation of spinel-phase Co3O4 with an average crystallite size of approximately 40 nm. SEM imaging revealed an interconnected nanoporous structure with pore sizes ranging from 100 to 500 nm. Raman spectroscopy identified a strong F2g mode at 600 cm–1, corresponding to asymmetric stretching vibrations of oxygen atoms coordinated to tetrahedral cobalt ions. Co3O4 NPs have been widely reported for their applications in catalysis, energy storage, and environmental remediation due to their superb electrochemical performance and stability. Through examining the effects of varied F/O ratios, this work aimed to extend the knowledge on how the synthesis parameters could be utilized to optimize the characteristics of Co3O4 NPs towards advanced technological uses. The results will be significant for enhancing functional materials, catalysts and the creation of energy conversion and storage systems of the future.","PeriodicalId":595,"journal":{"name":"International Journal of Self-Propagating High-Temperature Synthesis","volume":"34 2","pages":"113 - 122"},"PeriodicalIF":0.6,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145168972","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

Ignition, Combustion, and Gas Emission during Combustion of Fe3O4–Al–Ni Nanothermite Mixtures Fe3O4-Al-Ni纳米热剂混合物燃烧过程中的点火、燃烧和气体排放

IF 0.6

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2025-06-23 DOI: 10.3103/S1061386225700049

S. G. Vadchenko, S. Yu. Pereverzeva

引用次数: 0

Self-Propagating High-Temperature Synthesis of Titanium Oxide Bronzes: Influence of Mechanical Activation 自传播高温合成氧化钛青铜：机械活化的影响

IF 0.6

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2025-06-23 DOI: 10.3103/S1061386225700062

I. A. Sologubova, M. K. Kotvanova

{"title":"Self-Propagating High-Temperature Synthesis of Titanium Oxide Bronzes: Influence of Mechanical Activation","authors":"I. A. Sologubova, M. K. Kotvanova","doi":"10.3103/S1061386225700062","DOIUrl":"10.3103/S1061386225700062","url":null,"abstract":"MxTiO2 (M = Li, Na, K, and Rb; 0 < x < 1) bronzes were prepared via self-propagating high-temperature synthesis (SHS) of mechanically activated and non-activated green mixtures containing TiO2, MI, and additive CuO + Ti as heat-generating agent. The influence of mechanical activation on the composition and structure of SHS products was studied. TEM investigations revealed the growth of the number of crystal defects after mechanical activation, in particular, the formation of edge dislocations in certain crystallographic directions, leading to an increase in the diffusion speed in the crystal. The beginning of mechanical activation was shown to be accompanied by the formation of unstable interstitial solid solutions without changing the crystal structure of TiO2. Prolonged grinding generated stable phases with higher content of intercalated atoms and individual structure, which acted as heterogeneous crystallization nuclei during SHS. According to Rietveld refinements preliminary mechanical activation favored a higher yield of target phases with a higher content of intercalated alkali metal ions.","PeriodicalId":595,"journal":{"name":"International Journal of Self-Propagating High-Temperature Synthesis","volume":"34 2","pages":"107 - 112"},"PeriodicalIF":0.6,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145168323","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 Tantalum on Deformation Behavior of HfB2–SiC Ceramics at Elevated Temperatures 钽对HfB2-SiC陶瓷高温变形行为的影响

IF 0.6

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2025-06-23 DOI: 10.3103/S1061386225700086

Yu. S. Pogozhev, A. Yu. Potanin, E. I. Patsera, E. A. Levashov, K. V. Petrovskaya, V. P. Vagin, E. A. Bogachev, A. N. Timofeev

引用次数: 0

Thermoelectric Properties of Al(1–x)MnSi(1+x) Alloy Prepared by Self-Propagating High-Temperature Synthesis 自蔓延高温合成Al(1 - x)MnSi（1+x）合金的热电性能

IF 0.5

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2025-04-23 DOI: 10.3103/S1061386224700444

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

引用次数: 0

Solution Combustion Synthesis of La0.9Me0.1MnO3 ± y Powders in Nitrate–Polyvinyl Alcohol and Nitrate–Polyvinylpyrrolidone Systems 硝酸-聚乙烯醇和硝酸-聚乙烯吡啶酮体系中La0.9Me0.1MnO3±y粉体的溶液燃烧合成

IF 0.5

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2025-04-23 DOI: 10.3103/S1061386224700389

A. E. Permyakova, O. V. Russkikh, A. A. Ostroushko

{"title":"Solution Combustion Synthesis of La0.9Me0.1MnO3 ± y Powders in Nitrate–Polyvinyl Alcohol and Nitrate–Polyvinylpyrrolidone Systems","authors":"A. E. Permyakova, O. V. Russkikh, A. A. Ostroushko","doi":"10.3103/S1061386224700389","DOIUrl":"10.3103/S1061386224700389","url":null,"abstract":"The processes occurring during the synthesis of lanthanum manganites doped with alkali metal ions in combustion reactions in the nitrate–polyvinyl alcohol and nitrate–polyvinylpyrrolidone systems were investigated. The maximum combustion temperatures of compositions depending on the organic fuel content φ (ratio to stoichiometric amount) were given. It was found that the maximum temperature of the process is 531°C, which is reached when synthesizing LaMnO3 ± y sample from the composition with polyvinyl alcohol (φ = 4). It was experimentally shown that the maximum combustion temperature increases with increasing organic component amount in the composition and decreasing pyrolytic impurity gas (such as carbon monoxide CO, nitrogen oxides NO and NO2) concentrations. The processes of charge generation during combustion of nitrate–polyvinyl alcohol and nitrate–polyvinylpyrrolidone systems at different types of heating of the reactor were studied. The effect of synthesis conditions on the specific surface area of complex oxides was investigated.","PeriodicalId":595,"journal":{"name":"International Journal of Self-Propagating High-Temperature Synthesis","volume":"34 1","pages":"16 - 32"},"PeriodicalIF":0.5,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865540","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

SHS of TiC–Graphite Porous Composites and Carbon Graphitization tic -石墨多孔复合材料的SHS与碳石墨化

IF 0.5

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2025-04-23 DOI: 10.3103/S1061386224700407

E. R. Umerov, A. P. Amosov, E. I. Latukhin, V. A. Novikov

引用次数: 0

Preparation of High Pure α-Al2O3 from Aluminum Dross by Self-Heat Generating Method 铝渣自生热法制备高纯α-Al2O3

IF 0.5

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2025-04-23 DOI: 10.3103/S1061386224700419

U. Singh, J. Pendam, M. Tirpude, P. Yadav, A. Agnihotri

{"title":"Preparation of High Pure α-Al2O3 from Aluminum Dross by Self-Heat Generating Method","authors":"U. Singh, J. Pendam, M. Tirpude, P. Yadav, A. Agnihotri","doi":"10.3103/S1061386224700419","DOIUrl":"10.3103/S1061386224700419","url":null,"abstract":"Due to its excellent engineering properties, aluminum has become an important material for processing industries. As the demand for aluminum increased, a large amount of waste aluminum dross was generated during the aluminum smelting process. The aluminum dross contained aluminum nitride and would cause odor while being disposed in landfill, making the aluminum dross disposal a tough issue. Therefore, the aluminum dross was mostly stored in the original plants. The objective of this study was to develop an economically feasible and environmentally friendly technology to recover aluminum dross. Aluminum dross ranges from 1–2% of the aluminum manufactured and comprises 30–70% aluminum by weight. 1 ton of aluminum metal production generates 10 to 20 kg of dross. Currently, in India, there is very limited organized processing of dross. The world produces approximately 65 million tons of aluminum per annum, which results in approximately 1 million tons of aluminum dross being produced every year. Furthermore, almost 100 000 of these are produced in India. Hence, the environmental impact of this waste is a global problem that needs to be addressed on priority. In this paper, a new method is developed to prepare a high pure α-alumina (99% purity) from aluminum dross by self-heat generating, one-step combustion method at 500°C furnace temperature.","PeriodicalId":595,"journal":{"name":"International Journal of Self-Propagating High-Temperature Synthesis","volume":"34 1","pages":"50 - 55"},"PeriodicalIF":0.5,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865399","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

Reaction Initiation by Laser in Ti–Al–CuO Powder Mixture 激光在Ti-Al-CuO粉末混合物中引发反应

IF 0.5

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2025-04-23 DOI: 10.3103/S1061386224700365

A. G. Knyazeva, M. G. Krinitcyn

引用次数: 0