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Journal of Superhard Materials最新文献

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Boron Oxide on the Surface of Grains from Superhard Materials as a Possible Factor Increasing the Performance Characteristics of Grinding Tools 超硬材料晶粒表面的氧化硼是提高磨削工具性能特性的一个可能因素
IF 1.2 4区 材料科学
Journal of Superhard Materials Pub Date : 2024-10-27 DOI: 10.3103/S1063457624050058
V. I. Lavrinenko
{"title":"Boron Oxide on the Surface of Grains from Superhard Materials as a Possible Factor Increasing the Performance Characteristics of Grinding Tools","authors":"V. I. Lavrinenko","doi":"10.3103/S1063457624050058","DOIUrl":"10.3103/S1063457624050058","url":null,"abstract":"<p>The effect of boron oxide on the surface of grains from superhard materials on the performance characteristics of grinding tools is studied. The possibility of increasing the strength of cubic boron nitride (cBN) grains by their thermal treatment in air at a low temperature due to the filling of their defective space with a B<sub>2</sub>O<sub>3</sub> film is shown. The results of tests show that the wheel containing cBN powder have higher wear resistance and lower specific grinding energy. It is demonstrated that just boron oxide on the surface of grains from superhard materials is an important factor of increasing their performance characteristics in grinding tools.</p>","PeriodicalId":670,"journal":{"name":"Journal of Superhard Materials","volume":"46 5","pages":"402 - 408"},"PeriodicalIF":1.2,"publicationDate":"2024-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518830","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
Thermal Conductivity of Cutting Tool Ceramics Fabricated from Exothermal Mixtures of Cr2O3–AlN and ZrO2(M)–Al–C via Hot Pressing 用 Cr2O3-AlN 和 ZrO2(M)-Al-C 的放热混合物通过热压制造切削工具陶瓷的导热率
IF 1.2 4区 材料科学
Journal of Superhard Materials Pub Date : 2024-10-27 DOI: 10.3103/S1063457624050071
M. M. Prokopiv, O. V. Kharchenko, I. P. Fesenko
{"title":"Thermal Conductivity of Cutting Tool Ceramics Fabricated from Exothermal Mixtures of Cr2O3–AlN and ZrO2(M)–Al–C via Hot Pressing","authors":"M. M. Prokopiv,&nbsp;O. V. Kharchenko,&nbsp;I. P. Fesenko","doi":"10.3103/S1063457624050071","DOIUrl":"10.3103/S1063457624050071","url":null,"abstract":"<p>The article presents the results of a study on the thermal conductivity of ceramic cutting materials produced from exothermic mixtures of Cr<sub>2</sub>O<sub>3</sub> with AlN and ZrO<sub>2(M)</sub>–Al–C via hot pressing. The characteristics of the resulting materials were compared with those of commercial cutting ceramics Al<sub>2</sub>O<sub>3</sub>–TiC grade CC650 (Sandvik Coromant, Sweden).</p>","PeriodicalId":670,"journal":{"name":"Journal of Superhard Materials","volume":"46 5","pages":"409 - 410"},"PeriodicalIF":1.2,"publicationDate":"2024-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518920","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
Mechanism of Polishing for Polystyrene Based Scintillators 聚苯乙烯基闪烁体的抛光机理
IF 1.2 4区 材料科学
Journal of Superhard Materials Pub Date : 2024-10-27 DOI: 10.3103/S1063457624050034
Yu. D. Filatov, A. Y. Boyarintsev, V. I. Sidorko, S. V. Kovalev, O. V. Kolesnikov, V. O. Novgorodtsev, Ya. I. Polupan
{"title":"Mechanism of Polishing for Polystyrene Based Scintillators","authors":"Yu. D. Filatov,&nbsp;A. Y. Boyarintsev,&nbsp;V. I. Sidorko,&nbsp;S. V. Kovalev,&nbsp;O. V. Kolesnikov,&nbsp;V. O. Novgorodtsev,&nbsp;Ya. I. Polupan","doi":"10.3103/S1063457624050034","DOIUrl":"10.3103/S1063457624050034","url":null,"abstract":"<p>Abstract—As a result of studying the mechanism of polishing with a disperse system from micro- and nanopowders for polystyrene scintillators, sludge nanoparticles (SP) and polishing powder wear particles (PP) were established to form due to Förster resonance energy transfer (FRET) occurring in a four-mode regime in the open microresonator formed by the surfaces of a treated material and a polishing powder particle. The disperse phase particles in the polishing disperse system were demonstrated to wear twice faster as compared to treated material removal. The total cross section of SPs scattering on PPs (31.1 Mb) during the scattering of quantum nanoparticles in the open resonator formed by the treated material and lap surfaces was shown to be much larger than the total cross section of PPs scattering on SPs to result in the absence of a deposit from polishing powder wear nanoparticles on the treated surface and the presence of a deposit from sludge nanoparticles on the lap surface. The results of calculating the material removal rate were established to agree with the data of experimental polystyrene polishing rate measurements at a deviation up to 4%, and SP deposit fragments on the lap surface were from 0.2 to 1.0 mm in size and discretely arranged within an annular zone with a radius of 24.5 mm. The polishing of polystyrene based scintillation elements with a disperse system from micro- and nanoparticles was shown to improve the pulse shape discrimination of fast neutrons and gamma quanta by high aspect ratio detectors by 14%.</p>","PeriodicalId":670,"journal":{"name":"Journal of Superhard Materials","volume":"46 5","pages":"390 - 401"},"PeriodicalIF":1.2,"publicationDate":"2024-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518828","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
Effect of Steel Millings on the Structure and Mechanical Properties of SiC–Al2O3 Composites 钢粉对 SiC-Al2O3 复合材料结构和力学性能的影响
IF 1.2 4区 材料科学
Journal of Superhard Materials Pub Date : 2024-09-06 DOI: 10.3103/S1063457624040038
A. H. Dovhal, L. B. Pryimak, V. V. Varijukhno, O. M. Biliakovych
{"title":"Effect of Steel Millings on the Structure and Mechanical Properties of SiC–Al2O3 Composites","authors":"A. H. Dovhal,&nbsp;L. B. Pryimak,&nbsp;V. V. Varijukhno,&nbsp;O. M. Biliakovych","doi":"10.3103/S1063457624040038","DOIUrl":"10.3103/S1063457624040038","url":null,"abstract":"<p>We investigated the effect of steel milling on the structure of SiC–Al<sub>2</sub>O<sub>3</sub> composite materials, synthesized in steel drums using steel milling bodies. The study focused on examining the physical and mechanical properties, specifically the flexural strength and hardness, of the synthesized samples. Optimal values of these characteristics were determined based on the composition of the composite and the specific processing conditions employed.</p>","PeriodicalId":670,"journal":{"name":"Journal of Superhard Materials","volume":"46 4","pages":"293 - 302"},"PeriodicalIF":1.2,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142186275","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
Construction of Diamond/Graphene Composite Structure via a Low-Temperature Heat Treatment 通过低温热处理构建金刚石/石墨烯复合结构
IF 1.2 4区 材料科学
Journal of Superhard Materials Pub Date : 2024-09-06 DOI: 10.3103/S1063457624040051
Danhui Han, Junlong Liu, Chong Peng, Baoyan Liang
{"title":"Construction of Diamond/Graphene Composite Structure via a Low-Temperature Heat Treatment","authors":"Danhui Han,&nbsp;Junlong Liu,&nbsp;Chong Peng,&nbsp;Baoyan Liang","doi":"10.3103/S1063457624040051","DOIUrl":"10.3103/S1063457624040051","url":null,"abstract":"<p>A diamond/graphene composite structure can be obtained using graphene oxide (GO) to undergo a significant thermal reduction reaction at approximately 200°C. The prepared composites were characterized via X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy. The effects of different particle sizes and diamond contents on the products’ phase composition and microstructure were studied. Results indicate that GO underwent a significant thermal reduction reaction at approximately 200°C. Most GO materials were reduced to graphene. They underwent expansion and were peeled off into an organ-like shape. A graphene coating was formed on the surface of diamond particles via a simple heat treatment from the mixtures of diamond and GO powders. The coating effect of large diamond particles was poor because of their high inertness. A quasi core–shell structure of diamond/graphene composite structure can be obtained using fine-grained diamonds.</p>","PeriodicalId":670,"journal":{"name":"Journal of Superhard Materials","volume":"46 4","pages":"275 - 284"},"PeriodicalIF":1.2,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142186324","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
On Melting of Boron Arsenide under Pressure 论砷化硼在压力下的熔化
IF 1.2 4区 材料科学
Journal of Superhard Materials Pub Date : 2024-09-06 DOI: 10.3103/S1063457624040105
Vladimir L. Solozhenko
{"title":"On Melting of Boron Arsenide under Pressure","authors":"Vladimir L. Solozhenko","doi":"10.3103/S1063457624040105","DOIUrl":"10.3103/S1063457624040105","url":null,"abstract":"<p>Melting of cubic boron arsenide, BAs, has been studied at pressures up to 8 GPa using <i>in situ</i> electrical resistivity measurements. It was found that above 2.5 GPa BAs melts congruently, and the melting curve has a negative slope (–53 ± 5 K/GPa), indicating a higher density of the melt as compared to the solid phase. The melting point of BAs at ambient pressure has been estimated to be 2410(30) K.</p>","PeriodicalId":670,"journal":{"name":"Journal of Superhard Materials","volume":"46 4","pages":"327 - 329"},"PeriodicalIF":1.2,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142186327","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
Effect of wSiC and wSi3N4 Whiskers on the Ultimate Dynamic Tensile Strength of cBN Composites from the BL Group wSiC 和 wSi3N4 晶须对 BL 组 cBN 复合材料极限动态拉伸强度的影响
IF 1.2 4区 材料科学
Journal of Superhard Materials Pub Date : 2024-09-06 DOI: 10.3103/S1063457624040117
D. A. Stratiichuk, L. M. Devin, S. V. Richev, V. Z. Turkevich, Y. Y. Rumiantseva
{"title":"Effect of wSiC and wSi3N4 Whiskers on the Ultimate Dynamic Tensile Strength of cBN Composites from the BL Group","authors":"D. A. Stratiichuk,&nbsp;L. M. Devin,&nbsp;S. V. Richev,&nbsp;V. Z. Turkevich,&nbsp;Y. Y. Rumiantseva","doi":"10.3103/S1063457624040117","DOIUrl":"10.3103/S1063457624040117","url":null,"abstract":"<p>The effect of wSiC and wSi<sub>3</sub>N<sub>4</sub> whiskers on the ultimate dynamic tensile strength <span>(R_{{text{m}}}^{{text{d}}})</span> of superhard BL group cBN composites synthesized in the cBN–NbN–Al and cBN–NbN–Al<sub>2</sub>O<sub>3</sub> systems is considered. It is demonstrated that <span>(R_{{text{m}}}^{{text{d}}})</span> is ranged from 182 to 333 MPa and depends on the character of a filler. It is pointed out that the addition of wSiC whiskers to the initial sintering mixture increases <span>(R_{{text{m}}}^{{text{d}}})</span> of sintered ceramic averagingly by 10–15% and, at the same time, the presence of Al<sub>2</sub>O<sub>3</sub> leads to a slight decrease in the material strength.</p>","PeriodicalId":670,"journal":{"name":"Journal of Superhard Materials","volume":"46 4","pages":"330 - 332"},"PeriodicalIF":1.2,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224537","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
Effect of Sintering Pressure on the Properties of PcBN Carbide Inserts 烧结压力对碳化 PCBN 刀片性能的影响
IF 1.2 4区 材料科学
Journal of Superhard Materials Pub Date : 2024-09-06 DOI: 10.3103/S1063457624040129
Xiangxiang Yin,  Peicheng Mo
{"title":"Effect of Sintering Pressure on the Properties of PcBN Carbide Inserts","authors":"Xiangxiang Yin,&nbsp; Peicheng Mo","doi":"10.3103/S1063457624040129","DOIUrl":"10.3103/S1063457624040129","url":null,"abstract":"<p>PcBN (polycrystalline cubic boron nitride) carbide insert were synthesized with cBN/Zr/Al as raw material under high temperature and pressure. The effects of synthesis pressure on the interfacial morphology, wear resistance, microhardness and flatness of PcBN carbide insert were investigated. The test results show that with the increase of synthesis pressure, the composite interfacial bond is more dense and homogeneous, and the bonding strength between the cBN layer and the alloy substrate is higher. Additionally, the density, microhardness and abrasion resistance of the PcBN carbide insert were improved. Meanwhile, under the ultra-high pressure, the thickness deviation of the PcBN carbide insert gradually decreases, the thickness distribution gradually becomes uniform, and the flatness of the samples gradually becomes better.</p>","PeriodicalId":670,"journal":{"name":"Journal of Superhard Materials","volume":"46 4","pages":"267 - 274"},"PeriodicalIF":1.2,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142186274","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
Quantum Mechanism of Optical Glass Polishing 光学玻璃抛光的量子机制
IF 1.2 4区 材料科学
Journal of Superhard Materials Pub Date : 2024-09-06 DOI: 10.3103/S106345762404004X
Yu. D. Filatov
{"title":"Quantum Mechanism of Optical Glass Polishing","authors":"Yu. D. Filatov","doi":"10.3103/S106345762404004X","DOIUrl":"10.3103/S106345762404004X","url":null,"abstract":"<p>As a result of studying the mechanism of optical glass polishing by means of disperse systems from ceria powders, it has been established that glass is eliminated via the removal of sludge nanoparticles from the treated surface during its interaction with polishing powder particles, which occurs in an open microresonator formed by the surfaces of the treated material and polishing powder particles due to Förster resonant energy transfer between the energy levels of polishing powder and treated material particles. It has been shown that, in a bimodal system with a discrete spectrum of natural frequencies, the number of sludge nanoparticles generated in the treated surface–disperse system–lap surface grows with an increase in the bulk wear coefficient, the lifetime of the excited state of treated surface clusters, and the microresonator <i>Q</i> factor. A method of calculating the treated material removal rate and the roughness parameters of polished surfaces has been developed to establish that the deviation of the calculated polishing rate from experimental data is less than 2%, and the errors of calculating the arithmetic mean <i>R</i><sub>a</sub> and mean square <i>R</i><sub>q</sub> deviations of the polished surface profile attain 10%, and the calculated maximum profile height <i>R</i><sub>max</sub> is 40–50% underestimated as compared to experimental data.</p>","PeriodicalId":670,"journal":{"name":"Journal of Superhard Materials","volume":"46 4","pages":"303 - 313"},"PeriodicalIF":1.2,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142186323","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 Indicators of Grinding Tools with Cubic Boron Nitride Grains with Combined Wear-Resistant Coatings 立方氮化硼晶粒与复合耐磨涂层磨削工具的性能指标
IF 1.2 4区 材料科学
Journal of Superhard Materials Pub Date : 2024-09-06 DOI: 10.3103/S1063457624040087
V. I. Lavrinenko, V. G. Poltoratskyi, O. O. Pasichnyi, V. Yu. Solod
{"title":"Performance Indicators of Grinding Tools with Cubic Boron Nitride Grains with Combined Wear-Resistant Coatings","authors":"V. I. Lavrinenko,&nbsp;V. G. Poltoratskyi,&nbsp;O. O. Pasichnyi,&nbsp;V. Yu. Solod","doi":"10.3103/S1063457624040087","DOIUrl":"10.3103/S1063457624040087","url":null,"abstract":"<p>We investigated the effect of surface coatings on cubic boron nitride (cBN) grains regarding tool wear resistance and processing efficiency. At a low processing rate (50 mm<sup>3</sup>/min), the wear resistance enhancement factor was 1.66 for the B<sub>2</sub>O<sub>3</sub> + CeO<sub>2</sub> coating. Conversely, at a higher processing rate (200 mm<sup>3</sup>/min), the wear resistance enhancement factor decreased to 1.13 for the B<sub>2</sub>O<sub>3</sub> + B<sub>4</sub>C coating. The study demonstrated that under these processing conditions, surface coating of cBN grains with a combination of oxide and carbide (B<sub>2</sub>O<sub>3</sub> + SiC) is preferable. This preference is based on improved grinding wheel wear resistance and reduced surface roughness (<i>R</i><sub>a</sub>) of the machined surface. Furthermore, at increased grinding efficiency, any coating on cBN grain surfaces decreases the <i>t</i>50 parameter, thereby decreasing the holding capacity of the rough surface generated during grinding with such wheels.</p>","PeriodicalId":670,"journal":{"name":"Journal of Superhard Materials","volume":"46 4","pages":"322 - 326"},"PeriodicalIF":1.2,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142186325","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
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