Kun Zhou
Nanyang Technological University
Composite numberUltimate tensile strengthFinite element methodDislocationChemical physicsComposite materialNanotechnologyMetallurgyMaterials scienceGeometryCondensed matter physicsOxideGrapheneChemical engineeringGrain boundaryElectrochemistrySelective laser sinteringMechanicsMolecular dynamicsStructural engineeringAnisotropyStress (mechanics)
427Publications
63H-index
10.5kCitations
Publications 425
Newest
#1Luxin Liang (CSU: Central South University)H-Index: 5
#2Qianli Huang (CSU: Central South University)H-Index: 20
Last. Kun Zhou (NTU: Nanyang Technological University)H-Index: 63
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Abstract null null Modulating the activation state and degree of macrophages still remains as a challenge for the topographical design of Ti-based implants. In this work, micro/nano-structured coatings were prepared on Ti substrates by micro-arc oxidation (MAO) and subsequent hydrothermal (HT) treatment. By varying HT conditions, plate-like nano-structures with an average length of 80, 440 or 780 nm were obtained on MAO-prepare micro-topographical surfaces. Depending on the dimensional features ...
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#1Qiang Zhang (Georgia Institute of Technology)H-Index: 195
#2Shayuan Weng (Georgia Institute of Technology)H-Index: 4
Last. H. Jerry Qi (Georgia Institute of Technology)H-Index: 58
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Abstract null null Due to its high printing resolution and fast printing speed, digital light processing (DLP) has become one of the most widely used additive manufacturing technologies. In a typical DLP printing, resin is photocured from liquid into solid accompanied by a large volume shrinkage, which often leads to shape distortion of printed structures. In this study, we investigated the volume shrinkage-induced distortion of DLP-printed parts by conducting experiments, theoretical modeling, ...
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#1Jin LiuH-Index: 3
#2Sheng Guo (WIT: Wuhan Institute of Technology)H-Index: 3
Last. Kun Zhou (NTU: Nanyang Technological University)H-Index: 63
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Abstract The appropriate energy level position of photocatalysts dominates the photocatalytic redox reaction and utilization efficiency of solar energy for wastewater treatment. Herein, we report a near-infrared (NIR) light driven Bi5+-rich Bi4O7 photocatalyst, achieving a greatly enhanced photocatalytic activity for pollutant removal compared with Bi3+-replenished Bi2O3. Density functional theory calculations show the formation of an intermediate band in the Bi4O7 structure because of the hybri...
1 CitationsSource
#1Pengfei Tan (NTU: Nanyang Technological University)H-Index: 4
#2Fei Shen (TJU: Tianjin University)
Last. Kun Zhou (NTU: Nanyang Technological University)H-Index: 63
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#1Kaijuan Chen (NTU: Nanyang Technological University)
#1Kaijuan Chen (NTU: Nanyang Technological University)
Last. Hejun Du (NTU: Nanyang Technological University)
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Abstract The viscoelastic-viscoplastic deformation of Multi Jet Fusion-printed polyamide 12 (MJF PA12) was investigated with experimental and numerical approaches. Multi-loading–unloading–recovery tests were conducted to distinguish between the viscoelastic and viscoplastic deformations. The influence of the void defects on deformation of PA12 was investigated through the micro-computed tomography (μCT) and field emission scanning electron microscope. A finite-strain viscoelastic-viscoplastic co...
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#1Wei Shian Tey (NTU: Nanyang Technological University)H-Index: 1
#2Chao Cai (HUST: Huazhong University of Science and Technology)H-Index: 32
Last. Kun Zhou (NTU: Nanyang Technological University)H-Index: 63
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Multi Jet Fusion (MJF) is a recently developed polymeric powder bed fusion (PBF) additive manufacturing technique that has received considerable attention in the industrial and scientific community due to its ability to fabricate functional and complex polymeric parts efficiently. In this work, a systematic characterization of the physicochemical properties of MJF-certified polyamide 11 (PA11) and thermoplastic polyurethane (TPU) powder was conducted. The mechanical performance and print quality...
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#1Chao Cai (NTU: Nanyang Technological University)H-Index: 32
#2Jasper Chua Dong Qiu (Agency for Science, Technology and Research)H-Index: 1
Last. Kun Zhou (NTU: Nanyang Technological University)H-Index: 63
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Abstract null null Mo2C/Ti64 composites with nearly full densification and enhanced tensile strength were developed by using laser powder bed fusion (LPBF). The addition of 1–3 wt% Mo2C particles with an average particle size of ~ 1 µm enabled the LPBF-printed composites with an alternately laminated α′-Ti/β-Ti microstructure along with Mo2C and in-situ synthesized M23C6 (M was Ti, Al, V, and Mo). During LPBF, most of the Mo2C particles were incorporated into the Ti64 matrix, resulting in the α′...
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#1Lin Tian (GAU: University of Göttingen)H-Index: 9
#2R. Lakshmi Narayan (IITD: Indian Institute of Technology Delhi)H-Index: 2
Last. Zhi-Wei Shan (Xi'an Jiaotong University)H-Index: 37
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Abstract The deformation mechanisms in a β-Ti reinforced Zr-based bulk metallic glass composite (BMGC) are studied by extracting submicron sized tensile coupons of the crystalline and amorphous phase in their monolithic and bilaminate composite forms and tensile testing them inside a TEM. Results show that the monolithic BCC crystalline phase and amorphous phase have high yield strains, owing to small length scale effects, but undergo negligible post-yield elongation before failure. However, the...
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In this study, molecular dynamics simulation is used to investigate the effects of water-based substitutional defects in zeolitic imidazolate frameworks (ZIF)-8 membranes on their reverse osmosis (RO) desalination performance. ZIF-8 unit cells containing up to three defect sites are used to construct the membranes. These substitutional defects can either be Zn defects or linker defects. The RO desalination performance of the membranes is assessed in terms of the water flux and ion rejection rate...
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#1Yu-Jia Tang (NTU: Nanyang Technological University)H-Index: 6
#2Han Zheng (NTU: Nanyang Technological University)H-Index: 4
Last. Kun Zhou (NTU: Nanyang Technological University)H-Index: 63
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