Technical Physics最新文献

Simulation and Optimization of CdTe Thin Film Solar Cell with Cu Doped NiO Back Contact Cu掺杂NiO背触点CdTe薄膜太阳能电池的仿真与优化

IF 0.4 4区物理与天体物理

Technical Physics Pub Date : 2026-10-01 DOI: 10.1134/S1063784226600529

Kim Hyon Chol, Son Kwang Il, Pak Yun Chol

引用次数: 0

Electron Beam Deposition of Silicon–Carbon Coatings into the Groove of a Metal Detail 电子束沉积硅碳涂层在金属细部沟槽中的研究

IF 0.4 4区物理与天体物理

Technical Physics Pub Date : 2026-10-01 DOI: 10.1134/S1063784226600979

V. A. Burdovitsin, L. J. Ngon A Kiki, E. M. Oks, F. A. Sukhovolsky

引用次数: 0

Study on Real-Time Operating Simulation of a One-Dimensional Incompressible Single-Phase Fluid Flow Network 一维不可压缩单相流体流动网络的实时运行仿真研究

IF 0.4 4区物理与天体物理

Technical Physics Pub Date : 2026-10-01 DOI: 10.1134/S1063784226600402

Pak Yong Il, Pak Chol Song, Ri Yong Chan

引用次数: 0

The Behavior of Vibration in a Non-Homogeneous Orthotropic Rectangular Plate with a Linearly Varying Temperature and Circularly Varying Thickness in Two Dimensions 二维线性变温、圆变厚度非均匀正交各向异性矩形板的振动特性

IF 0.4 4区物理与天体物理

Technical Physics Pub Date : 2026-10-01 DOI: 10.1134/S1063784226600621

Abhishek Thakur, Ashish Kumar Sharma, Umesh Bhardwaj

引用次数: 0

Attractive Role of Hydrogen in TEA CO2 Lasers: Improving Discharge Stability and Output Characteristics 氢在TEA CO2激光器中的吸引作用：改善放电稳定性和输出特性

IF 0.4 4区物理与天体物理

Technical Physics Pub Date : 2026-10-01 DOI: 10.1134/S1063784226600517

Kwang-Il Pak, Jong-Jin Ro, Son-Gyong Kim, Tu-Hon Yun, Jong-Ho An

{"title":"Attractive Role of Hydrogen in TEA CO2 Lasers: Improving Discharge Stability and Output Characteristics","authors":"Kwang-Il Pak, Jong-Jin Ro, Son-Gyong Kim, Tu-Hon Yun, Jong-Ho An","doi":"10.1134/S1063784226600517","DOIUrl":"10.1134/S1063784226600517","url":null,"abstract":"Hydrogen contained in the gas mixture of transversely excited atmospheric-pressure (TEA) CO2 lasers plays an attractive role in improving the discharge stability and output characteristics of glow discharge by suppressing arc discharge. During the excitation of TEA CO2 lasers, hydrogen effectively relaxes the CO2 (010) level, with the action of inhibiting the O2 production by dissociating CO2 molecules, thus reducing the “bottleneck” in the operation of laser systems. We propose a new method that takes into account the role of hydrogen in the whole process from pumping to output of TEA CO2 lasers. We numerically evaluate the transition from glow to arc discharge in the discharge gap of TEA CO2 lasers. The current and voltage (V–I) differential equations of the pumping circuit in TEA CO2 lasers using corona pre-ionization are solved to determine the O2 concentration produced by the change in electron density. Then, the six-temperature model is combined to simulate the dynamics of high-power TEA CO2 lasers considering the change in gas mixtures with hydrogen. The determined discharge voltage and gas mixture are essential for designing and operating TEA CO2 lasers for suitable applications.","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":"71 10","pages":"737 - 743"},"PeriodicalIF":0.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098316","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-Chemical Destruction of Transition Metals as Plasma-Facing Materials 等离子体表面材料过渡金属的等离子体化学破坏

IF 0.4 4区物理与天体物理

Technical Physics Pub Date : 2026-10-01 DOI: 10.1134/S1063784226700568

V. P. Afanas’ev, L. G. Lobanova, L. Zhang, A. V. Dedov, M. A. Semenov-Shefov, S. Wang, H. Liu

{"title":"Plasma-Chemical Destruction of Transition Metals as Plasma-Facing Materials","authors":"V. P. Afanas’ev, L. G. Lobanova, L. Zhang, A. V. Dedov, M. A. Semenov-Shefov, S. Wang, H. Liu","doi":"10.1134/S1063784226700568","DOIUrl":"10.1134/S1063784226700568","url":null,"abstract":"First mirrors are critical components of optical diagnostic systems for measuring parameters of thermonuclear plasma in tokamaks. The condition and surface quality of first mirrors affect the accuracy of measured data, such as plasma density, temperature, magnetic field magnitude and others. This work investigates the mechanism leading to catastrophic surface destruction of molybdenum and tantalum mirrors used in POINT diagnostic system of EAST tokamak. The destruction of molybdenum and tantalum mirrors—which are transition metals, along with tungsten—is visually observable due to the high reflectivity of their surfaces, initially polished to achieve the required reflective properties. This makes first mirrors a convenient tool for studying surface destruction processes of all transition metals used as the first wall of tokamaks. Thus, in this work, first mirrors with polished surfaces are considered as elements of the first wall of fusion reactors, prepared for detailed study of erosion processes resulting from exposure to thermonuclear plasma. It is noted that it is precisely the mirror surface that allows visual observation of the catastrophic nature of the destruction of molybdenum and tantalum surfaces. Surface studies based on optical microscopy have revealed predominant destruction of surface structures along intergranular spaces and in regions of point defects arising from plasma exposure. X-ray photoelectron spectroscopy made it possible to establish the effect of the return to the first-wall surface of positively charged molybdenum ions and molybdenum-containing radicals. This work presents a destruction mechanism for transition metals that follows from the presented experimental facts. The study emphasizes that catastrophic plasma-chemical destruction occurs with all tokamak components made of transition metals that face the plasma.","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":"71 10","pages":"729 - 736"},"PeriodicalIF":0.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098306","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

Evaluating the Effectiveness of the Warm Water Layer in the RSG-GAS Reactor: A CFD Thermal-Hydraulic Analysis RSG-GAS反应器中暖水层有效性评价：CFD热水力分析

IF 0.4 4区物理与天体物理

Technical Physics Pub Date : 2026-10-01 DOI: 10.1134/S1063784226601006

Muhammad Thowil Afif, K. V. Slyusarskiy, Mohammad Dhandhang Purwadi

{"title":"Evaluating the Effectiveness of the Warm Water Layer in the RSG-GAS Reactor: A CFD Thermal-Hydraulic Analysis","authors":"Muhammad Thowil Afif, K. V. Slyusarskiy, Mohammad Dhandhang Purwadi","doi":"10.1134/S1063784226601006","DOIUrl":"10.1134/S1063784226601006","url":null,"abstract":"This study investigates the thermal–hydraulic behavior of the Warm Water Layer (WWL) system behavior of the Warm Water Layer (WWL) system in the RSG-GAS research reactor using CFD simulations based on actual operating data from five core configurations (Cores 101, 102, 103, 107, and 108). The focus is on how inlet temperature, flow rate, and outlet distribution affect thermal stratification and its interaction with the primary coolant. To better understand the observed flow behavior, a net flow parameter (NET) is introduced, defined as the difference between inlet and outlet flow rates. Rather than treating stratification only from temperature profiles, NET is used here to directly relate flow imbalance with mixing and penetration behavior. The results indicate that stable stratification is consistently obtained at an inlet condition of 60°C and 10 m3/h. Increasing the inlet flow rate generally strengthens the layer and improves stratification, but at the same time enhances turbulent mixing with the primary coolant. At lower flow rates, upward penetration becomes weaker, mainly due to stronger downward entrainment linked to higher NET values. Higher inlet temperatures further support vertical temperature separation, although local heat transfer also becomes more active. Overall, the results show that WWL performance is not controlled by a single parameter, but by the balance between stratification and mixing. In this context, NET provides a simple but practical way to interpret the behavior and can be used to evaluate WWL operation under realistic conditions.","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":"71 10","pages":"777 - 787"},"PeriodicalIF":0.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098577","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

Effect of Graphene Oxide and Surface-Functionalized Graphene Oxide on the Mechanical Performance of EPDM/NBR Composites 氧化石墨烯和表面功能化氧化石墨烯对三元乙丙橡胶/丁腈橡胶复合材料力学性能的影响

IF 0.4 4区物理与天体物理

Technical Physics Pub Date : 2026-10-01 DOI: 10.1134/S1063784226600918

S. Vishvanathperumal, A. Kannan

{"title":"Effect of Graphene Oxide and Surface-Functionalized Graphene Oxide on the Mechanical Performance of EPDM/NBR Composites","authors":"S. Vishvanathperumal, A. Kannan","doi":"10.1134/S1063784226600918","DOIUrl":"10.1134/S1063784226600918","url":null,"abstract":"EPDM/NBR elastomer blends reinforced with silane-treated graphene oxide were successfully fabricated to enhance their overall performance. Graphene oxide (GO) was synthesized using a modified Hummers oxidation route and subsequently chemically functionalized with γ-aminopropyltriethoxysilane (KH550) to strengthen its compatibility with the rubber matrix. This chemical modification significantly improved the distribution of the nanofiller within the elastomeric system relative to unmodified graphene oxide, resulting in more effective stress transfer between the filler and polymer phases. As a result, the composites containing functionalized graphene oxide demonstrated notable improvements in mechanical behavior. At an optimized filler concentration of 5 phr, the tensile strength, stress at 100% elongation, and tear resistance increased by 36.2, 19.4, and 57.1%, respectively. Furthermore, these reinforced materials exhibited superior resistance to abrasive wear compared with both unfilled blends and those containing untreated graphene oxide. The enhanced performance is primarily associated with uniform nanofiller dispersion and stronger interfacial interactions established through silane functionalization. Overall, the incorporation of KH550-modified graphene oxide (KH550-GO) represents a promising and practical approach for producing advanced elastomeric materials with improved durability and mechanical integrity for demanding engineering applications such as automotive components and sealing technologies.","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":"71 10","pages":"788 - 812"},"PeriodicalIF":0.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098578","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

Features of Three-Dimensional Thermal State Modeling of a Rotary Piston Engine 旋转活塞发动机三维热态建模特点

IF 0.4 4区物理与天体物理

Technical Physics Pub Date : 2026-08-30 DOI: 10.1134/S1063784226700532

D. V. Vyalikov, M. I. Stupenkov, A. L. Kozlov

引用次数: 0

Structured Thermal Representation of a Brushless DC Motor Based on Infrared Image Analysis 基于红外图像分析的无刷直流电动机结构热表征

IF 0.4 4区物理与天体物理

Technical Physics Pub Date : 2026-08-30 DOI: 10.1134/S1063784226700556

A. V. Zayara, M. B. Kosarich

引用次数: 0