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| 1 | In situ fabrication of organic electrochemical transistors on a microfluidic chip显示文摘Microfluid chips integrating with organic electrochemical transistors (OECTs) are useful for manufacturing biosensors with high throughput and large-scale analyses. We report here the utilization of alternating current (AC) electrodeposition to fabricate OECTs in situ on a microfiuid chip. With this method, the organic semiconductor (OS) layer with a channel length of 8μm was readily prepared without requiring the postbonding process in the conventional construction of microfluidic chips. Poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate)/graphene quantum dots (PEDOT:PSS/GQDs) composites with different morphologies, such as microfilms, nanodendrites and nanowires were electropolymerized. The mass transfer process of the electropolymerization reaction was evidenced to be diffusion limited. Morphologies, growth directions, and chemical structures of OS layers could be tuned by the amplitude and the frequency of the AC voltage. Transfer and output characteristic curves of OECTs were measured on the microfluidic chip. The maximum transconductance, on/off current ratio and threshold voltage measured in the experiment was 1.58 mS, 246, and 0.120 V, respectively. | Jianlong Ji Mangmang Li Zhaowei Chen Hongwang Wang Xiaoning Jiang Kai Zhuo Ying Liu Xing Yang Zhen Gu Shengbo Sang Yang Shu | 2019 | Nano Research2019，12，8： | 3 |
| 2 | TEM Specimen Preparation for Al-based Amorphous Alloys显示文摘传播电子显微镜学(TEM ) 通常被用来识别 theamorphicity。然而,一些人工制品可以由于不适当的 TEM 陪衬准备被介绍。在这篇论文,有或没有玻璃转化的三副 Al 富有的金属性的眼镜为在 TEMspecimen 准备期间在同样熄灭的结构上描绘电刷光条件的效果被选择。调制明亮黑暗的结构 underTEM 观察的出现对电刷光条件密切敏感,这被显示出,它建议我们当在 TEM 下面检验非结晶的合金时,对可能的人工制品小心由标本准备导致了。 | Hongwang YANG Xinchun CHANG Wanliang HOU Jianqiang WANG | 2006 | Journal of Materials Science & Technology2006，22，5： | 3 |
| 3 | Low temperature impact toughness and fracture mechanism of cast QT400-18L ductile iron with diferent Ni additions显示文摘Different contents of Ni(0.3wt.%to 1.2wt.%)were added to the QT400-18L ductile iron to investigate the effect of Ni addition on the impact toughness of cast ductile irons at low temperatures.The impact toughnesses of the samples at room and low temperatures were tested.The microstructures and fractographs were observed.Results show that with the increase of Ni addition there is a general trend of refinement of the ferrite matrix while the nodule density shows no obvious change.When the Ni content is 0.7wt.%,the matrix structure is the refined ferrite with a very small fraction(about 2%)of pearlite near the eutectic cell boundaries.When the Ni content is further increased,the fraction of pearlite increases significantly and reaches more than 5%when 1.2wt.%Ni is added.The impact toughness at room temperature increases as the content of Ni increases from 0.3 wt.%to 0.7 wt.%,but decreases as the Ni content further increases to 1.2wt.%due to the increase of pearlite fraction.The maximum value of the impact work is 18.5 J at room temperature with 0.7wt.%Ni addition.The average value of the impact work is still more than 13 J even at-30℃.In addition,the fracture mechanism changes from ductile manner to brittleness as the testing temperature decreases from 20℃to-60℃. | Zhang Xinning Qu Yingdong Yang Hongwang Li Rongde | 2013 | China Foundry2013，10，5： | 2 |
| 4 | An efficient preparation of porous polymeric microspheres by solvent evaporation in foam phase显示文摘This paper reports an efficient method of preparing porous polymeric microspheres by solvent evaporation in foam phase,in which phase separation between polymer and porogen occurs in foam phase instead of that in water phase by using the traditional solvent eva poration method.The method provides outstanding features,including being time-saving,of high-yield and able for continuous production,in which formation of porous polymeric microspheres finished within 3 min with a high production yield up to approximate 95 wt% and the process was able to be developed into a continuous process for production of porous polymeric microspheres.It was also universal to non-crosslinked polymers since the method is a development on the traditional emulsion solvent evaporation method.The new method is efficient and can be used potentially on the industrial scale for continuous production of porous polymeric microsphere s. | Yang Yu Guiying Li Wanqing Han Linhua Zhu Tian Si HongWang Yanlin Sun Yanping He | 2021 | Chinese Journal of Chemical Engineering2021，34，1： | 1 |
| 5 | Devitrification-induced an Ultrahigh Strength Al-based Composite Maintaining Ductility显示文摘A new Al-based composite consisting of submicron-sized α-Al matrix embedded with precipitated intermetallic phases was developed by controlling the devitrification process of an Al-Ni-Y-Co-La amorphous alloy.Such a homogeneous composite structure presented an ultrahigh strength of about 1.34 GPa and a large compressive plastic strain up to 22%.The unique mechanical properties during compression are mainly attributed to the dislocation slip deformation of ductile a-AI matrix and the shear-induced refinement of strengthening intermetallic phases. | Dong Kan Xiaopeng Li Baijun Yang Hongwang Yang Jianqiang Wang | 2015 | Journal of Materials Science & Technology2015，31，5： | 0 |
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