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The Effect of Coupled Radio-Frequency Discharges at Intermediate Pressure on the Characteristics of Acrylic Emulsion 中压耦合射频放电对丙烯酸乳液特性的影响
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2026-06-28 DOI: 10.1134/S1063785026700203
I. I. Latfullin, G. R. Rakhmatullina, M. Z. Garaev
{"title":"The Effect of Coupled Radio-Frequency Discharges at Intermediate Pressure on the Characteristics of Acrylic Emulsion","authors":"I. I. Latfullin,&nbsp;G. R. Rakhmatullina,&nbsp;M. Z. Garaev","doi":"10.1134/S1063785026700203","DOIUrl":"10.1134/S1063785026700203","url":null,"abstract":"<p>The paper demonstrates the effect of radio-frequency capacitively coupled and radio-frequency inductively coupled discharges at intermediate pressure on the particle size distribution and homogeneity of acrylic emulsion. The сharacteristics of acrylic emulsion were evaluated using dynamic light scattering. It is shown that modifying the emulsion in a capacitively coupled radio-frequency discharge improves the uniformity of the distribution of acrylic emulsion particle sizes. Modifying the emulsion in a radio-frequency inductive discharge results in fragmentation and redistribution of the particles.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"52 3","pages":"177 - 178"},"PeriodicalIF":0.8,"publicationDate":"2026-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148323661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Glow Discharge Plasma Antenna: Simulation and Experiment 辉光放电等离子体天线：仿真与实验
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2026-06-28 DOI: 10.1134/S1063785026700379
G. B. Kiselev, A. Yu. Savin, V. S. Zheltukhin
{"title":"Glow Discharge Plasma Antenna: Simulation and Experiment","authors":"G. B. Kiselev,&nbsp;A. Yu. Savin,&nbsp;V. S. Zheltukhin","doi":"10.1134/S1063785026700379","DOIUrl":"10.1134/S1063785026700379","url":null,"abstract":"<p>The results of a comprehensive study of a non-invasive method for measuring electron density in the near-surface layer of a glow discharge based on the resonance of surface standing electromagnetic waves are presented. To validate the method, optical emission spectroscopy has been used, and a simplified two-dimensional hydrodynamic plasma model has been developed using COMSOL Multiphysics. The measured electron density on the plasma column surface is shown to be on the order of 10<sup>13</sup> m<sup>–3</sup> and increases with increasing power.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"52 3","pages":"115 - 117"},"PeriodicalIF":0.8,"publicationDate":"2026-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148323668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Plasma–Liquid Processing of Aluminum Products 铝制品的等离子液加工
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2026-06-28 DOI: 10.1134/S1063785026700380
R. R. Kayumov, Al. F. Gaisin, Az. F. Gaisin, F. M. Gaisin
{"title":"Plasma–Liquid Processing of Aluminum Products","authors":"R. R. Kayumov,&nbsp;Al. F. Gaisin,&nbsp;Az. F. Gaisin,&nbsp;F. M. Gaisin","doi":"10.1134/S1063785026700380","DOIUrl":"10.1134/S1063785026700380","url":null,"abstract":"<p>The results of studies of welding of AD0M aluminum plates by the method of plasma–liquid welding using an electrolytic anode based on a 7% solution of NaCl are presented. The microstructure, hardness, and elemental composition of welded joints are studied.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"52 3","pages":"113 - 114"},"PeriodicalIF":0.8,"publicationDate":"2026-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148323744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ensuring the Quality of Repairs of Agricultural Machinery through the Use of Statistical Control Tools 利用统计控制工具保证农业机械维修质量
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2026-06-28 DOI: 10.1134/S1063785026700082
O. A. Leonov, G. N. Temasova, P. V. Golinitskiy, I. N. Kravchenko, A. N. Samordin
{"title":"Ensuring the Quality of Repairs of Agricultural Machinery through the Use of Statistical Control Tools","authors":"O. A. Leonov,&nbsp;G. N. Temasova,&nbsp;P. V. Golinitskiy,&nbsp;I. N. Kravchenko,&nbsp;A. N. Samordin","doi":"10.1134/S1063785026700082","DOIUrl":"10.1134/S1063785026700082","url":null,"abstract":"<p>High-quality repair and regular maintenance of the camshaft ensure reliable and efficient engine operation. The quality of restored parts depends on precision machining. The research aimed to evaluate the quality of equipment settings to machine the bearing pins of the YaMZ-236 engine camshaft for the repair size. To assess the quality of the camshaft restoration process, the authors applied control sheets, Shewhart control charts, and a histogram. The diameters of 20 camshaft bearing pins, both before and after repair, were determined in two cross sections and in two mutually perpendicular planes using an SR-75 lever gauge. The check sheets allowed for the collection and processing of primary data for the statistical analysis of the repair of the YaMZ-236 engine camshaft. Analysis of the control charts showed that the variations in ranges (spreads) within and between the shafts are due to random causes. This indicates the stability and controllability of the technological process. The histogram allowed for the estimation of the probability of repairable defects at less than 0.5%, and of irreparable defects (scrap) at 0%. The calculated reproducibility index of 1.66 shows that the technological process complies with the requirements. The quality of the machine settings for machining the bearing pins complies with the requirements. The study has confirmed a hypothesis regarding maintaining the machining quality through the regular application of statistical control methods.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"52 2","pages":"62 - 67"},"PeriodicalIF":0.8,"publicationDate":"2026-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148323919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Producing Finely Dispersed Iron Oxide Powders by an Electrochemical Method 用电化学方法制备精细分散的氧化铁粉末
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2026-06-28 DOI: 10.1134/S1063785026700239
D. K. Minabutdinov, L. N. Kashapov, M. M. Yamaleev, E. A. Grebenshchikov
{"title":"Producing Finely Dispersed Iron Oxide Powders by an Electrochemical Method","authors":"D. K. Minabutdinov,&nbsp;L. N. Kashapov,&nbsp;M. M. Yamaleev,&nbsp;E. A. Grebenshchikov","doi":"10.1134/S1063785026700239","DOIUrl":"10.1134/S1063785026700239","url":null,"abstract":"<p>An electrochemical approach to producing finely dispersed iron oxide powders using bulk bipolar electrodes and pulsed/reversible power supply is presented. The key stages of the process (anodic dissolution, hydrolysis, filtration, washing, drying and calcination), factors influencing dispersion and phase composition (current density, temperature, pH, electrolysis time), as well as design solutions for filtration and heat treatment are described. According to the results of granulometry for the NH<sub>4</sub>Cl-based electrolyte, the average dispersion D(4.3) ≈ 2.18 μm was achieved. The issues of passivation and ways of reducing it due to the composition of the electrolyte and modes of current are discussed.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"52 3","pages":"167 - 171"},"PeriodicalIF":0.8,"publicationDate":"2026-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148323649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Production of Iron Oxide Powder by Weakly Alkaline Precipitation 弱碱性沉淀法生产氧化铁粉末
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2026-06-28 DOI: 10.1134/S1063785026700227
D. K. Minabutdinov, N. F. Kashapov, L. N. Kashapov
{"title":"Production of Iron Oxide Powder by Weakly Alkaline Precipitation","authors":"D. K. Minabutdinov,&nbsp;N. F. Kashapov,&nbsp;L. N. Kashapov","doi":"10.1134/S1063785026700227","DOIUrl":"10.1134/S1063785026700227","url":null,"abstract":"<p>Iron oxide powders are an important group of inorganic materials widely used in industry due to their accessibility, stability of properties and a variety of color shades. Their coloration is due to the presence of iron oxides (II) and (III), as well as their hydrated forms. Depending on the composition and structure, the powders can be yellow (hydrated iron III oxide, goethite), red (hematite), black (magnetite) or brown (mixed phases). Synthetic iron oxide powders have high chemical purity, color purity, dispersion and resistance to light, alkalis and weak acids, which makes them in demand in industry, for example in the production of paints, plastics, building materials, ceramics, magnetic materials and radiation protection coatings.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"52 3","pages":"172 - 174"},"PeriodicalIF":0.8,"publicationDate":"2026-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148323660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Adhesive Capacity of Corundum Ceramics Regulated by Low-Pressure CCP Plasma 低压CCP等离子体对刚玉陶瓷粘接性能的影响
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2026-06-28 DOI: 10.1134/S1063785026600365
I. K. Nekrasov, I. Sh. Abdullin
{"title":"The Adhesive Capacity of Corundum Ceramics Regulated by Low-Pressure CCP Plasma","authors":"I. K. Nekrasov,&nbsp;I. Sh. Abdullin","doi":"10.1134/S1063785026600365","DOIUrl":"10.1134/S1063785026600365","url":null,"abstract":"<p>A comprehensive study was conducted on the effect of plasma treatment under conditions of a high-frequency low-pressure discharge on the physical and mechanical characteristics of technical corundum ceramics. The main goal of the study was to modify the surface and strength properties of the material. It was experimentally determined that plasma treatment significantly improves the key parameters of the material. In particular, there was a significant decrease in the contact angle of water wetting from 83° to 21°, indicating an increase in the surface energy of the material.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"52 3","pages":"133 - 135"},"PeriodicalIF":0.8,"publicationDate":"2026-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148323663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of the Open FOAM Package for Simulation of Discharge with Liquid Jet Electrodes 开放式FOAM封装在液体喷射电极放电模拟中的应用
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2026-06-28 DOI: 10.1134/S1063785026700252
F. Khairullin, Al. Gaisin, V. Zheltukhin
{"title":"Application of the Open FOAM Package for Simulation of Discharge with Liquid Jet Electrodes","authors":"F. Khairullin,&nbsp;Al. Gaisin,&nbsp;V. Zheltukhin","doi":"10.1134/S1063785026700252","DOIUrl":"10.1134/S1063785026700252","url":null,"abstract":"<p>A simplified model of a jet-drop discharge is shown. The main steps for using the Open FOAM package to simulate a discharge with liquid electrodes are presented.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"52 3","pages":"159 - 162"},"PeriodicalIF":0.8,"publicationDate":"2026-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148323760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modeling of Electrophysical Processes in the Production of Zinc Powder 锌粉生产中的电物理过程建模
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2026-06-28 DOI: 10.1134/S1063785026700422
M. S. Dmitriev, L. N. Kashapov, K. V. Kormushin
{"title":"Modeling of Electrophysical Processes in the Production of Zinc Powder","authors":"M. S. Dmitriev,&nbsp;L. N. Kashapov,&nbsp;K. V. Kormushin","doi":"10.1134/S1063785026700422","DOIUrl":"10.1134/S1063785026700422","url":null,"abstract":"<p>In this work, we modeled surface processes during the production of zinc powder, which is necessary for producing soluble metabiomaterials using additive technologies. The proposed modeling method allows us to predict and study surface processes at the interface between a submerged metal electrode and a liquid electrolyte.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"52 3","pages":"101 - 103"},"PeriodicalIF":0.8,"publicationDate":"2026-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148323738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Experimental Study of the Effect of a High-Frequency Discharge under Low-Pressure Conditions on Surface Radius 低压条件下高频放电对表面半径影响的实验研究
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2026-06-28 DOI: 10.1134/S1063785026700392
I. I. Gaisin, R. R. Kayumov
{"title":"An Experimental Study of the Effect of a High-Frequency Discharge under Low-Pressure Conditions on Surface Radius","authors":"I. I. Gaisin,&nbsp;R. R. Kayumov","doi":"10.1134/S1063785026700392","DOIUrl":"10.1134/S1063785026700392","url":null,"abstract":"<p>In this work, the effect of a high-frequency discharge with a jet flow of electrolyte at reduced pressure on the material roughness is investigated.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"52 3","pages":"110 - 112"},"PeriodicalIF":0.8,"publicationDate":"2026-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148323742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","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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