Wei Ji

Static and dynamic mechanical properties of SLM 18Ni-300 before and after gradient heating solution treatment combined with aging treatment

Wei Ji, Jiahao Huang, Chuang Xu, Hongjun Zhu et autres

Materials possessing both high strength and high toughness are the ideal materials in aerospace, defense, and military industries. With the development of additive manufacturing technology, it has opened up a new path for the preparation of high-strength, complex structural components in these …

cn, us (code pays fourni par la source)

Densification mechanism and enhanced properties of fine‐grain hafnia ceramics prepared by high‐pressure sintering

Wanjun Li, Ao Cheng, Hanxing Liu, Shuai Fu et autres

Abstract Hafnia has become a promising thermal protective material due to its low thermal conductivity and high mechanical strength. However, it is difficult to balance the densification and grain growth of the material with the traditional sintering technology. In this study, HfO …

cn (code pays fourni par la source)

Densification behavior and microstructure evolution of submicron-scaled boron carbide ceramics fabricated under high pressure

Shuai Fu, Wei Ji, Hanxing Liu

cn (code pays fourni par la source)

Effect of Sintering Pressure on Thermoelectric Properties of BiCuSeO Ceramics

Xizi Chen, Dongwang Yang, Wei Ji, Zhaoyong Zou

cn (code pays fourni par la source)

Effect of Y2O3 reinforcement on the high-temperature performance of TiN/TC4 composites in-situ prepared by laser melting deposition

Yang Zheng, Lei Gao, Ruize Xiong, Cenya Zhao et autres

cn (code pays fourni par la source)

Hardness-dependent surface roughness threshold governing rolling contact fatigue crack initiation

Mostafa Gargourimotlagh, Javad Hazrati, Wei Ji, Matthijn Bas De Rooij

Surface roughness and material hardness strongly influence rolling contact fatigue (RCF) of rolling elements, yet a clear understanding of their combined effect on crack initiation remains limited. This study introduces a systematic approach to quantify the critical surface roughness threshold for fatigue …

nl (code pays fourni par la source)

A Study of the Effects of Superplastic Isothermal Stamping Die Design and Process Parameters on the Wall Thickness and Properties of Large Hemispherical Gas Cylinder

Wei Ji, Zhaohuang Zhang, Zichuan Lu, Shi Wei

cn (code pays fourni par la source)

High-pressure regulated phase transition enables in situ synthesis of high-performance dual-phase Si3N4 ceramics

Xiaowei Qin, Ji Zou, Weimin Wang, Wei Ji et autres

cn (code pays fourni par la source)

Numerical study on micro-cracking behavior and damage model for granite during thermal-cooling cycles

Shifeng Zhang, Yuqing Xu, Qinze Xing, Xinying Cui et autres

cn, jp (code pays fourni par la source)

Regulation of Microstructure and Room/High-Temperature Mechanical Properties of Laser Melting Deposition GH4169/K477 Gradient Material by Heat Treatment and Hot Isostatic Pressing

Han Wang, Wei Ji, Cheng Hai Wang, Ruize Xiong et autres

cn, in (code pays fourni par la source)

Zein/eugenol electrospun mats on gelatin/laponite substrate for developing bilayer functional food packaging

Minmin Chen, Linlin Li, Wei Ji, Wensheng Lü et autres

cn (code pays fourni par la source)

Mechanically and electrically switchable triferroic altermagnet in a pentagonal FeO2 monolayer

Deping Guo, Jiaqi Dai, Ren-Hong Wang, Cong Wang et autres

Two-dimensional multiferroics promise low-power, multifunctional devices, yet the intrinsic coexistence and mutual control of three coupled ferroic orders in a single layer remains elusive. Here, we identify pentagonal monolayer FeO$_2$ as an intrinsic triferroic altermagnet where ferroelectric (FE), ferroelastic (FA), and altermagnetic …