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Zhang, Shizhe (author), Ye, G. (author), Lukovic, M. (author), Hendrik, H. (author), Scharringa, A. (author)In Nederland wordt veel aandacht besteed aan geopolymeerbeton als een van de mogelijkheden om de CO₂-voetafdruk van beton te verlagen. Hoewel dit materiaal op laboratoriumschaal uitgebreid is onderzocht, zijn praktische toepassingen en ervaringen nog maar beperkt beschikbaar. Bovendien bestaan er voor een brede en grootschalige constructieve...journal article 2022
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Liu, X. (author), Li, Shizhen (author), Tan, C. (author), Gao, Chenshan (author), Liu, Yang (author), Ye, H. (author), Zhang, Kouchi (author)Nano copper sintering technology has great potential to be widely applied in the wide-bandgap semiconductor packaging. In order to investigate the coalescence kinetics of copper nano particles for this application, a molecular dynamic (MD) simulation was carried out at low temperature on a special model containing two substrate and multiple...journal article 2022
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Sun, Yubo (author), Ghorbani, Saeid (author), Dai, Xiaodi (author), Ye, G. (author), De Schutter, Geert (author)This study provides a detailed investigation on the reproducibility of two groups of alkali-activated slag (AAS) mixtures, from both fresh properties and strength development perspectives. Three different commercial sodium silicate solutions and one lab-produced silicate activator (made of silica fume and sodium hydroxide) were used to...journal article 2022
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Sun, Beibei (author), Ye, G. (author), de Schutter, Geert (author)Alkali-activated materials (AAM) are known to be environmentally friendly alternatives to cement-based materials because they can potentially reduce greenhouse gas emissions and reutilize industrial by-products/wastes. To study the factors influencing the strength of slag based alkali-activated materials (BFS-AAM), fly ash based alkali...review 2022
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Sun, Yubo (author), Liu, Zhiyuan (author), Ghorbani, Saeid (author), Ye, G. (author), De Schutter, Geert (author)The present study explores the possibility of replacing blast furnace slag (BFS) with coal fly ash (FA) to produce alkali-activated material (AAM) concrete with hybrid precursors. With an increased FA replacement ratio, the reaction kinetics, fresh and hardened properties of AAM mixtures have been investigated. The retardation effect on the...journal article 2022
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Wang, Jinyang (author), Chen, P. (author), Ye, Zhisheng (author)The rate reduction models have been widely used to model the recurrent failure data for their capabilities in quantifying the repair effects. Despite the widespread popularity, there have been limited studies on statistical inference of most failure rate reduction models. In view of this fact, this study proposes a semiparametric estimation...journal article 2022
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Li, Jing (author), Yin, Suhong (author), Huang, Haoliang (author), Hu, Jie (author), Yi, Chaofan (author), Chen, Zheng (author), Ma, Yuwei (author), Ye, G. (author)This study is undertaken to explore the relationship between the reaction products and the drying shrinkage of alkali-activated slag (AAS) with the varying hydroxide dosage. AAS pastes were firstly produced with either Al(OH)3 or Mg(OH)2 to investigate the effects of hydroxide on the composition of reaction products and the drying shrinkage of...journal article 2022
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Tan, C. (author), Wang, S. (author), Yang, Huiru (author), Huang, Qianming (author), Li, Shizhen (author), Liu, X. (author), Ye, H. (author), Zhang, Kouchi (author)Recent reports focus on the hydrogenation engineering of monolayer boron phosphide and simultaneously explore its promising applications in nanoelectronics. Coupling density functional theory and finite element method, we investigate the bowtie triangle ring microstructure composed of boron phosphide with hydrogenation based on structural and...journal article 2022
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Zhang, Y. (author), Wu, Kai (author), Yang, Zhengxian (author), Ye, G. (author)Reliable characterization of the pore structure is essentially important for transport-related durability studies of cementitious materials. Mercury intrusion porosimetry has been commonly used for pore structure measurement while the ink-bottle effect significantly affects the trustworthiness of pore size features of cementitious materials....journal article 2022
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Rossi, Laura (author), Miranda de Lima Junior, L.C. (author), Sun, Yubo (author), Dehn, Frank (author), Provis, John L. (author), Ye, G. (author), De Schutter, Geert (author)The production of cement and concrete contributes significantly to global greenhouse gas emissions. Alkali‐activated concretes (AACs) are a family of existing alternative construction materials that could reduce the current environmental impact of Portland cement (PC) production and utilisation. Successful applications of AACs can be found in...journal article 2022
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Zhao, Menglian (author), Zhao, Yibo (author), Zhang, H. (author), Hu, Yaopeng (author), Bao, Yuanxin (author), Ye, Le (author), Qu, Wanyuan (author), Tan, Zhichao (author)This article presents a fully dynamic scalable switched-capacitor delta-sigma modulator that achieves a 94.1-dB dynamic range (DR). Power-and- bandwidth scalability by only changing the clock frequency is achieved using a capacitively biased and swing-enhanced floating inverter operational transconductance amplifier (OTA). Fabricated in a 180...journal article 2022
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Li, Shizhen (author), Liu, X. (author), Jiang, Jing (author), Tan, C. (author), Gao, Chenshan (author), Liu, Yang (author), Ye, H. (author), Zhang, Kouchi (author)Cu-Ag core-shell (CS) nanoparticle (NP) is considered as a cost-effective alternative material to nano silver sintering material in die attachment application. To further reduce the cost, the thickness of the Ag shell can be adjusted. Whereas the shell thickness will also affect the thermal stability of the Cu-Ag CSNPs. In this study, molecular...conference paper 2022
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Tan, C. (author), Wang, S. (author), Liu, X. (author), Jiang, Jing (author), Zhang, Kouchi (author), Ye, H. (author)On the basis of the development and application requirements of flexible DC transmission techniques, a 1 kA/10 kV half-bridge IGBT press-pack module is studied. The module is composed of three subunits in series, and each subunit consists of IGBT chips in parallel. In order to solve the problem of chips failure caused by non-uniform rigid...conference paper 2022
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Yuan, Wucheng (author), Liu, Ke (author), Wang, S. (author), Tan, C. (author), Ye, H. (author)The limitation of Silicon based power MOSFET was broken by the super-junction (SJ) structure, which can provide lower specific on-resistance and higher breakdown voltage compared with the conventional power MOSFET structure. Multi-epitaxial and multi-ion-implant technology, as a mature manufacturing process of the SJ structure, has been widely...conference paper 2022
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Liu, Ke (author), Yuan, Wucheng (author), Wang, S. (author), Tan, C. (author), Ye, H. (author)In this paper, a novel bubble-shift super junction (SJ) MOSFET structure is proposed, and its main static electrical parameters and reverse recovery characteristics are simulated by TCAD software tool. By designing the P-pillar ion implantation windows with a certain offset, the bubble-shift SJ-MOSFET contains a curved pillar region in the upper...conference paper 2022
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Hou, Shuhan (author), Wang, Zhaokun (author), Yang, Huiru (author), Jiang, Jing (author), Gao, Chenshan (author), Liu, Yufei (author), Tang, Xiaosheng (author), Ye, H. (author)For the relevant properties of pristine and doped (Si, P, Se, Te, As) monolayer WS<sub>2</sub> before and after the adsorption of CO, CO<sub>2</sub>, N<sub>2</sub>, NO, NO<sub>2</sub> and O<sub>2</sub>, density functional theory (DFT) calculations are made. Calculation results reveal that the monolayer WS<sub>2</sub> doped with P and As atoms...journal article 2022
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Yang, Huiru (author), Li, Junfeng (author), Shao, Ziyuan (author), Tan, C. (author), Gao, Chenshan (author), Cui, Hongyuan (author), Tang, Xiaosheng (author), Liu, Yufei (author), Zhang, Kouchi (author), Ye, H. (author)The development of high-performance gas sensing materials is one of the development trends of new gas sensor technology. In this work, in order to predict the gas-sensitive characteristics of HfSe<sub>2</sub> and its potential as a gas-sensitive material, the interactions of nonmetallic element (O, S, Te) doped HfSe<sub>2</sub> monolayer and...journal article 2022
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Sun, Yubo (author), Zhang, Shizhe (author), Rahul, A. V. (author), Tao, Yaxin (author), Van Bockstaele, Filip (author), Dewettinck, Koen (author), Ye, G. (author), De Schutter, Geert (author)This study aims to interpret the early-stage rheology of alkali-activated slag (AAS) paste from microstructure perspectives. The microstructures visualized by cryogenic scanning electron microscopy (cryo-SEM) revealed the essential distinction between hydroxide and silicate-activated slag pastes. The hydroxide-based mixture showed typical...journal article 2022
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- Ye, G. (author) journal article 2022
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Chen, Y. (author), Dolado, Jorge S. (author), Li, Z. (author), Yin, Suhong (author), Yu, Qijun (author), Kostiuchenko, A. (author), Ye, G. (author)In this paper, the atomic structures of sodium aluminosilicate hydrate (N–A–S–H) gels with different Si/Al ratios are studied by molecular dynamics simulation. An N–A–S–H gel model was obtained from the polymerization of Si(OH)<sub>4</sub> and Al(OH)<sub>3</sub> monomers with the use of a reactive force field (ReaxFF). The simulated atomic...journal article 2022