2篇
您的检索式：作者名="Tang Dewen"
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Microstructure of Hardened Steel at High Temperature and High Strain Rate显示文摘In high-speed machining,hardened steel materials are subjected to high temperatures and high strain rates.Under these conditions,the composition and microstructure of the material may change,and phenomena,such as thermal softening,emerge.These effects are difficult to detect by only observing the chip morphology.Here,using a microscopic detection method,the dynamic mechanical behavior and microstructure of SDK11 hardened steel(62HRC)is investigated at high temperature and high strain-rate,and the relationship between strain hardening,thermal softening,and strain-rate strengthening is determined.The metallographic phases of specimens treated using a split-Hopkinson pressure bar,and″chips″generated during high-speed machining at high temperature and high strain rate state are compared.The results indicate that the phase composition at low temperature and low strain rate differs from that at high temperature and high strain rate.It is further concluded that shear slip occurs at high temperature and high strain rate,and the shear behavior is more pronounced at higher strain rates. | Ding Feng Tang Dewen Wang Chengyong Zhang Fenglin Zheng Lijuan | 2017 | Transactions of Nanjing University of Aeronautics and Astronautics2017，34，4： | 2 |
| 2 | Versatile sensing devices for self-driven designated therapy based on robust breathable composite films显示文摘Flexible wearable electronics were developed for applications such as electronic skins,human-machine interactions,healthcare monitoring,and anti-infection therapy.But conventional materials showed impermeability,single sensing ability,and no designated therapy,which hindered their applications.Thus it was still a great challenge to develop electronic devices with multifunctional sensing properties and self-driven anti-infection therapy.Herein,flexible and breathable on-skin electronic devices for multifunctional fabric based sensing and self-driven designated anti-infection therapy were prepared successfully with cellulose nanocrystals/iron(Ⅲ)ion/polyvinyl alcohol(CNC/Fe^(3+)/PVA)composite.The resultant composite films possessed robust mechanical performances,outstanding conductivity,and distinguished breathability(3.03 kg/(m^(2)·d)),which benefited from the multiple interactions of weak hydrogen bonds and Fe^(3+) chelation and synergistic effects among CNC,polyaniline(PANI),and PVA.Surprisingly,the film could be assembled as a multifunctional sensor to actively monitor real-time physical and infection related signals such as temperature,moisture,pH,NH3,and human movements even at sweat states.More importantly,this multifunctional device could act as a self-driven therapist to eliminate bacterial by the release of Fe^(3+),which was driven by the damage of metal coordination Fe-O bonds due to the high temperature caused by infection at wound sites.Thus,the composite films had potential versatile applications in electronic skins,smart wound dressings,human-machine interactions,and self-driven anti-infection therapy. | Zhaofeng Ouyang Songbo Cui Houyong Yu Dewen Xu Chuang Wang Dongping Tang Kam Chiu Tam | 2022 | Nano Research2022，15，2： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员