Journal of Superhard Materials最新文献_第6页

Effect of the 15N Isotope on the Lattice Thermal Conductivity of Cubic Boron Nitride 15N同位素对立方氮化硼晶格导热性能的影响

IF 1.2 4区材料科学

Journal of Superhard Materials Pub Date : 2025-10-20 DOI: 10.3103/S1063457625050090

O. P. Podoba, S. V. Shmegera, V. I. Kushch

引用次数: 0

Improving Drilling Technology in Percussive Rotary Drilling 改进冲击旋转钻井技术

IF 1.2 4区材料科学

Journal of Superhard Materials Pub Date : 2025-10-20 DOI: 10.3103/S1063457625050041

Ye. A. Koroviaka, S. O. Shypunov

引用次数: 0

Surface Modification of Carbon Fibers as Fillers of Composite Materials Based on Phthalonitrile Binders 基于邻苯二腈粘结剂的复合材料填料碳纤维表面改性研究

IF 1.2 4区材料科学

Journal of Superhard Materials Pub Date : 2025-10-20 DOI: 10.3103/S1063457625050077

E. O. Pashchenko, D. O. Savchenko, S. A. Kukharenko, R. M. Kurganov, O. M. Kaidash, O. V. Lazhevska, V. M. Bychykhin, S. V. Skorokhod

{"title":"Surface Modification of Carbon Fibers as Fillers of Composite Materials Based on Phthalonitrile Binders","authors":"E. O. Pashchenko, D. O. Savchenko, S. A. Kukharenko, R. M. Kurganov, O. M. Kaidash, O. V. Lazhevska, V. M. Bychykhin, S. V. Skorokhod","doi":"10.3103/S1063457625050077","DOIUrl":"10.3103/S1063457625050077","url":null,"abstract":"This study presents results aimed at developing a novel method for electrochemical induction of paramagnetic centers on the surface of carbon materials, which not only enhances adhesion between the filler and the matrix but also promotes long-term durability and preserves the initial level of interfacial contact characteristics under prolonged exposure to temperatures up to 500°C in air. Experimental results confirmed a positive correlation between the concentration of paramagnetic centers on the composite interfacial surface and its mechanical properties, specifically the flexural strength and elastic modulus. The study demonstrates that phthalonitrile oligomers combined with fibrous fillers are suitable as matrices for the fabrication of abrasive composites with high thermomechanical performance. Such composites are designed for use in components and assemblies operating under extreme conditions. The implementation of this novel surface modification method for carbon materials significantly improves the mechanical properties, thermal stability, and heat resistance of composites based on phthalonitrile matrices.","PeriodicalId":670,"journal":{"name":"Journal of Superhard Materials","volume":"47 5","pages":"349 - 357"},"PeriodicalIF":1.2,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145327658","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

Methodological Features of Quantitative Analysis for the Characteristics of the Cutting Edges of High-Strength Grinding Powders of Synthetic Diamond 合成金刚石高强度磨粉刃口特性定量分析的方法学特点

IF 1.2 4区材料科学

Journal of Superhard Materials Pub Date : 2025-10-20 DOI: 10.3103/S1063457625050089

G. A. Petasyuk, O. O. Bochechka, V. I. Lavrinenko, Yu. V. Sirota

{"title":"Methodological Features of Quantitative Analysis for the Characteristics of the Cutting Edges of High-Strength Grinding Powders of Synthetic Diamond","authors":"G. A. Petasyuk, O. O. Bochechka, V. I. Lavrinenko, Yu. V. Sirota","doi":"10.3103/S1063457625050089","DOIUrl":"10.3103/S1063457625050089","url":null,"abstract":"Some methodological aspects of quantitative analysis for the characteristics of the cutting edges of abrasive powders are considered. It is pointed out that the approach based on the use of a grain projection is predominant in the practice of determining the values of these characteristics. The possibility and necessity of transition to the methodological scheme based on the 3D shape of a grain in a similar problem is substantiated. A methodological scheme taking into account the real morphology of grains of such grinding powders is proposed to provide a higher plausibility of initial values for the characteristics of their cutting edges. An analytical interpretation is given to the number and sharpening angles of the cutting edges of high-strength synthetic diamond (SD) grinding powders. Using grinding powders AS400 500/400 and AS200 630/500 as an example, the reasonability and advantages of the methodological scheme with the 3D shape of a grain as a generating object of the actual cutting edges of high-strength SD grinding powders is illustrated. At the same time, the methodological scheme using a grain projection as a generating object of cutting edges is not rejected. The recommendation to apply the known method of estimating the characteristics of cutting edges by the geometric modelling of an abrasive powder grain projection with star-shaped polygons is substantiated for non-high-strength SD and other abrasive powders at a quantitative level. It has been established that both considered methods give a rather satisfactory result in terms of coincidence between the sharpening angles of cutting edges (relative error is less than 1%) and a less satisfactory result, which is acceptable yet for practical applications, in terms of coincidence between the numbers of cutting edges (relative error is 14–17%).","PeriodicalId":670,"journal":{"name":"Journal of Superhard Materials","volume":"47 5","pages":"396 - 407"},"PeriodicalIF":1.2,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145327660","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

Melting of Boron-Rich Chalcogenides B12S and B12Se under Pressure 富硼硫族化合物B12S和B12Se在压力下的熔融

IF 1.2 4区材料科学

Journal of Superhard Materials Pub Date : 2025-09-04 DOI: 10.3103/S1063457625040100

V. L. Solozhenko

引用次数: 0

Ablation Tests of Hot-Pressed Ultrahigh-Temperature HfB2 and HfB2–SiC Ceramic 热压超高温HfB2和HfB2 - sic陶瓷烧蚀试验

IF 1.2 4区材料科学

Journal of Superhard Materials Pub Date : 2025-09-04 DOI: 10.3103/S1063457625040082

T. O. Prikhna, H. Ünsal, P. P. Barvitskyi, V. E. Moshchil

引用次数: 0

The Effect of Preparing Condition and Al Increase on the Bending Strength and Wearing Property of Mo(Si, Al)2-cBN Superhard Composite 制备条件和Al添加量对Mo(Si, Al)2-cBN超硬复合材料抗弯强度和耐磨性的影响

IF 1.2 4区材料科学

Journal of Superhard Materials Pub Date : 2025-09-04 DOI: 10.3103/S1063457625040112

Zhang Xiaoli, Wei li, Wang Yanbin, Liu Jiahui, Wang Zhuo, Ye Tengfei, Zheng Jiaqi, Zhang Yikang, Chen Zhangjing, Jiang Zongheng

{"title":"The Effect of Preparing Condition and Al Increase on the Bending Strength and Wearing Property of Mo(Si, Al)2-cBN Superhard Composite","authors":"Zhang Xiaoli,  Wei li, Wang Yanbin, Liu Jiahui, Wang Zhuo, Ye Tengfei, Zheng Jiaqi, Zhang Yikang, Chen Zhangjing, Jiang Zongheng","doi":"10.3103/S1063457625040112","DOIUrl":"10.3103/S1063457625040112","url":null,"abstract":"In this paper, Mo(Si, Al)2-cBN superhard composite was designed and prepared successfully in lower-temperature infiltrating melt aluminum at 975°C for 20 min to overcome shortcomings in low decompose temperature and oxidation resistance, high preparing temperature of present cBN/MAX composite. XRD showed that the main phase of Mo(Si, Al)2-cBN superhard composite were in-situ formed Mo (Si, Al)2 and remained cBN, and the vacuum atmosphere was more advantageous for it in gaining high density and llinear shrinkage, and the relationship between molding pressure and shrinkage of this composite obeyed a parabolic form in vacuum atmosphere. The increasement of infiltrated Al was helpful to its bending strength, when Al increased to same level as reported in c-BN/Al superhard materials as 2.86 at % or 9.8 vol %, the bending strength of Mo (Si, Al)2-cBN superhard composite reached the highest. And also, Mo(Si, Al)2-cBN ceramic-based superhard material owned excellent wearing property which was evaluated by friction and wear experiment between W18Cr4V counter-grinding ring and prepared (Mo(Si, Al)2-cBN ceramics block in dry friction model with a load of 49N.","PeriodicalId":670,"journal":{"name":"Journal of Superhard Materials","volume":"47 4","pages":"288 - 299"},"PeriodicalIF":1.2,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990604","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

Diamond Grinding of Ceramic Balls Based in a Groove with Circular Feed under Oscillation 振动下基于圆进给槽的陶瓷球金刚石磨削

IF 1.2 4区材料科学

Journal of Superhard Materials Pub Date : 2025-09-04 DOI: 10.3103/S1063457625040094

S. V. Sokhan’, V. V. Voznyy, V. H. Sorochenko

引用次数: 0

Assessment of Residual Stress in Protective Coatings on PCBN Substrates PCBN基板保护涂层残余应力的评估

IF 1.2 4区材料科学

Journal of Superhard Materials Pub Date : 2025-09-04 DOI: 10.3103/S1063457625040045

S. A. Klymenko, A. S. Manokhin, S. An. Klymenko, Yu. O. Melniychuk, V. V. Belorusets, S. P. Starik, A. O. Chumak, M. Yu. Kopeіkina, S. V. Riabchenko

{"title":"Assessment of Residual Stress in Protective Coatings on PCBN Substrates","authors":"S. A. Klymenko, A. S. Manokhin, S. An. Klymenko, Yu. O. Melniychuk, V. V. Belorusets, S. P. Starik, A. O. Chumak, M. Yu. Kopeіkina, S. V. Riabchenko","doi":"10.3103/S1063457625040045","DOIUrl":"10.3103/S1063457625040045","url":null,"abstract":"This study refines the calculation-experimental approach to evaluating residual stress in thin vacuum-plasma protective coatings on tools made of polycrystalline cubic boron nitride (PCBN), taking into account the thermal and structural components that arise during their formation. The stress values in a TiNbN coating were calculated using experimental data on the deformation of a model specimen—a thin steel plate—and the structural and thermally induced components of residual stress in the coating were identified. A functional relationship was found between the specimen deflection, coating deposition temperature, Young’s modulus, and residual stress in the coating. Using data obtained from model specimens, the residual stress was determined in a coating applied to a PCBN substrate of the Borsinit tool. The absolute values of the total residual stress significantly increased with coating thickness from 1 to 2.5 µm, reaching 1.9 GPa. The results demonstrate that the residual stress remains within safe limits regarding the potential cohesive failure of the coating.","PeriodicalId":670,"journal":{"name":"Journal of Superhard Materials","volume":"47 4","pages":"281 - 287"},"PeriodicalIF":1.2,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990591","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

Performance Characteristics of Grinding Tools from Diamond Grinding Powders after Floatation Separation 金刚石磨粉浮选分离后磨具的性能特征

IF 1.2 4区材料科学

Journal of Superhard Materials Pub Date : 2025-09-04 DOI: 10.3103/S1063457625040069

V. I. Lavrinenko, V. V. Smokvyna, H. D. Ilnytska, N. O. Oliinyk, G. A. Bazaliy, V. Yu. Solod

{"title":"Performance Characteristics of Grinding Tools from Diamond Grinding Powders after Floatation Separation","authors":"V. I. Lavrinenko, V. V. Smokvyna, H. D. Ilnytska, N. O. Oliinyk, G. A. Bazaliy, V. Yu. Solod","doi":"10.3103/S1063457625040069","DOIUrl":"10.3103/S1063457625040069","url":null,"abstract":"The floatation separation of diamond powders, where some grains of synthetic diamond grinding powder were carried to the surface layer (“foam” product) with air bubbles, and the others diamond grains remained in the chamber of the floatation machine to be better wetted with water (“chamber” product), has been studied. It has been shown that the “foam” product diamonds, in contrast to the original and “chamber” powders, have a higher strength of grains and are more homogeneous in strength at the lowest mass content of impurities and minimum specific magnetic susceptibility. To increase the wear resistance of a diamond wheel, the most efficient is to use just the “foam” product and, notably, such efficiency grows with an increase in the machining rate. It has been revealed that the application of a tool with diamond powders after floatation separation (“foam” and “chamber” products) makes it possible to attain a lower value for the roughness parameter Ra as compared to the tools with original diamond powders. At the same time, the fullness of the ground rough surface according to such a bearing surface profile parameter as t50 indicates that this parameter for different variants of applying the tools with diamond powders after floatation sorting is higher than for the tools with powders in the initial state.","PeriodicalId":670,"journal":{"name":"Journal of Superhard Materials","volume":"47 4","pages":"324 - 329"},"PeriodicalIF":1.2,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990404","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