Results 61 to 70 of about 66,627 (256)

Thermo-mechanical Coupling Simulation Analysis of Cycloid Gear Multi-tooth Form Grinding

Jixie chuandong, 2020
The cycloid gear multi-tooth form grinding is a gear finishing process，which can finish the processing of three tooth grooves at same time.In the process of high-speed grinding，high temperature will arise on the gear surface instantaneously，which may ...
Shi Enbing, Su Jianxin, Zhang Lifang, Deng Xiaozhong, Ren Xiaozhong, Cheng Chen   +5 more
doaj  

Synergistic Integration of Liquid Crystalline Ordering and Dynamic Networks for Ultrarobust Bismaleimide Vitrimers

Advanced Functional Materials, EarlyView.
A liquid‐crystalline bismaleimide vitrimer integrates local mesogenic organization with exchange‐active ester connectivity, achieving a glass‐transition temperature near 300°C while remaining reprocessable. Stress‐relaxation analysis and temperature‐dependent remolding reveal how segmental mobility, network rearrangement, and structural integrity ...
Woohyeon Kwon, Van‐Kien Hoang, Kyosun Ku, Hyeonuk Yeo   +3 more
wiley   +1 more source

Finite Element Thermal Model and Experimental Verification for Constant Pressure Belt Grinding Process

工程科学与技术, 2012
:In order to study the relationships between the grinding temperature and grinding parameters for constant pressure grinding process, a finite element thermal model was derived and expressed. So the grinding process and quality was improved. Based on the
doaj  

Simulation and Experimental Study of Multi-Particle Grinding Based on W-M Fractal Dimension

Machines
Extended operation in complex environments characterized by high temperatures, pressures, and hydrogen exposure can lead to performance degradation for S32168 stainless steel welds of hydrogenation reactors, which significantly impacts the reliability of
Shengfang Zhang, Zhiyi Leng, Qiang Duan, Mingjie Lu, Hongtao Gu, Ziguang Wang, Yu Liu   +6 more
doaj   +1 more source

Photoinduced Interfacial Electronic Modulation in Fe2O3‐BiVO4 Heterostructures for Enhanced Photo‐Assisted Zn‐Air Batteries

Advanced Functional Materials, EarlyView.
Light irradiation activates the Fe2O3‐BiVO4 heterostructure, enabling efficient solar‐electrochemical coupling in zinc‐air batteries. The built‐in electric field drives directional charge separation, guiding photoelectrons toward oxygen reduction sites and accumulating holes for oxygen evolution, thereby reducing polarization and enhancing discharge ...
Yili Liu, Zhenjiang Du, Enming Liu, Hongzhou Dong, Jianguang Feng, Beili Pang, Lifeng Dong, Liyan Yu   +7 more
wiley   +1 more source

Nonstationary and discontinuous grinding temperature determination

, 2013
Выполнен анализ переходных процессов изменения температуры шлифования в подвижной и неподвижной системе координат соответственно для дву- и одномерной математической модели температурного поля. Разработана и исследована математическая модель для определения температуры прерывистого шлифования с учетом геометрических параметров прерывистых шлифовальных ...
Lishchenko, N., Larshin, V.
openaire   +2 more sources

Beyond Thin Film Limits—Superhard and Hydrogen‐Free Amorphous Carbon Coatings With Over 100 µm Thickness

Advanced Functional Materials, EarlyView.
For the first time, an extreme‐thick laser‐arc PVD ta‐C (DLC) coating exceeding 100 µm is demonstrated, opening up new possibilities for ultra‐high load bearing capacity. This superhard amorphous carbon architecture combines >50% sp3 bonding, robust adhesion and self‐supporting performance, shielding substrates from plastic flow under extreme contact ...
Martin Zawischa, Frank Kaulfuß, Stefan Makowski, Volker Weihnacht   +3 more
wiley   +1 more source

Numerical Analysis Model for the Instantaneous Grinding Temperature of Face Gears with a Worm Grinding Wheel

Jixie chuandong
The thermal distribution during the grinding of face gears using a worm grinding wheel is complex, with the heat being concentrated primarily on the surface layer of the wheel teeth, which can lead to thermal deformation and damage.
Wang Chao, Guo Hui, Ruan Yuhang, Ran Xiaoping, Zhao Ning   +4 more
doaj   +2 more sources

Finite Element Analysis of the Temperature Field of Face Gear Dish Wheel Grinding

Jixie chuandong, 2015
According to the principle of face gear dish wheel grinding,by using the theory of instantaneous contact ellipse,the grinding basic parameters are solved,the finite element model of gear grinding temperature field is set up and the gear grinding ...
Ming Xingzu, Zhao Lei, Wang Wei, Li Mande   +3 more
doaj  

Unexpected Asymmetric Mn‐Sb Site Mixing and Reentrant Spin‐Glass State of MnSb2Te4

Advanced Functional Materials, EarlyView.
MnSb2Te4 is an intrinsic magnetic topological insulator. Its properties are extraordinarily sensitive to tiny defects, making structural studies essential for understanding how magnetism and topology work together. This work shows that Mn can be unevenly distributed within the crystal and how that disorder is linked to a newly reported spin‐glass state
Gustavo Chavez Ponce de Leon, Ahmad Dibajeh, Gert ten Brink, Majid Ahmadi, Suyang Sun, Wei Zhang, Bart Jan Kooi, George Palasantzas   +7 more
wiley   +1 more source