The Experts below are selected from a list of 6150 Experts worldwide ranked by ideXlab platform
Qunji Xue - One of the best experts on this subject based on the ideXlab platform.
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various curing conditions for controlling ptfe micro nano Fiber Texture of a bionic superhydrophobic coating surface
Materials Chemistry and Physics, 2010Co-Authors: Zhuangzhu Luo, Zhaozhu Zhang, Wenjing Wang, Weimin Liu, Qunji XueAbstract:Abstract A simple and conventional coating-curing process to fabricate superhydrophobic coating surface with both the micro-nano-scale binary structure (MNBS) roughness, and the lowest surface energy hydrophobic groups (−CF 3 ) on engineering materials of stainless steel or other metals was developed by control of curing conditions. Results show that higher temperature and longer cooling time resulted in longer crystallizing process, and the forming PTFE aggregates could slowly produce the crystallization and create the willow-leaf-like or wheat-haulm-leaf-like polymer micro/nano-Fiber on the atop surface. The curing temperature dramatically influences the micro/nano-Fiber Texture of the PTFE/PPS superhydrophobic coating surface, leading to the excellent superhydrophobicity at higher temperature. An increase of the curing temperature is beneficial to fluorine gradient-distribution, PPS thermal-oxidative cross-linking and oxidative reaction, resulting in the enhancement of adhesive strength and mechanical properties of the PTFE/PPS superhydrophobic coatings. A bionic superhydrophobic surface with porous gel-like network and PTFE micro/nano-Fiber Textures could be created by natural cooling in air, whereas PTFE nano-sphere/-papillates Textures could be fabricated by hardening in H 2 O.
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Various curing conditions for controlling PTFE micro/nano-Fiber Texture of a bionic superhydrophobic coating surface
Materials Chemistry and Physics, 2009Co-Authors: Zhuangzhu Luo, Zhaozhu Zhang, Wenjing Wang, Weimin Liu, Qunji XueAbstract:Abstract A simple and conventional coating-curing process to fabricate superhydrophobic coating surface with both the micro-nano-scale binary structure (MNBS) roughness, and the lowest surface energy hydrophobic groups (−CF 3 ) on engineering materials of stainless steel or other metals was developed by control of curing conditions. Results show that higher temperature and longer cooling time resulted in longer crystallizing process, and the forming PTFE aggregates could slowly produce the crystallization and create the willow-leaf-like or wheat-haulm-leaf-like polymer micro/nano-Fiber on the atop surface. The curing temperature dramatically influences the micro/nano-Fiber Texture of the PTFE/PPS superhydrophobic coating surface, leading to the excellent superhydrophobicity at higher temperature. An increase of the curing temperature is beneficial to fluorine gradient-distribution, PPS thermal-oxidative cross-linking and oxidative reaction, resulting in the enhancement of adhesive strength and mechanical properties of the PTFE/PPS superhydrophobic coatings. A bionic superhydrophobic surface with porous gel-like network and PTFE micro/nano-Fiber Textures could be created by natural cooling in air, whereas PTFE nano-sphere/-papillates Textures could be fabricated by hardening in H 2 O.
Guodong Wang - One of the best experts on this subject based on the ideXlab platform.
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Microstructure and Texture of Strip Cast Grain‐Oriented Silicon Steel after Symmetrical and Asymmetrical Hot Rolling
steel research international, 2014Co-Authors: Hong-yu Song, Hai-tao Liu, Dian-qiao Geng, R. Devesh K. Misra, Zhenyu Liu, Guodong WangAbstract:A grain-oriented silicon steel as-cast strip was produced by twin-roll strip casting. Then the as-cast strip was symmetrically and asymmetrically hot rolled, respectively. The microstructure and Texture evolution was investigated by a combination of optical microscopy, X-ray diffraction, and electron backscattered diffraction methods. The microstructure of the as-cast strip consisted of ferrite matrix and martensite, and the Texture was characterized by pronounced {001} 〈0vw〉 Fiber Texture in the outer layers and nearly random Texture in the inner layers. After symmetric hot rolling, the microstructure was composed of deformed ferrite grains, proeutectoid ferrite grains and pearlite. The Texture was characterized by pronounced {001} 〈0vw〉 Fiber Texture in the outer layers and mild γ-Fiber Texture in the inner layers. By contrast, when asymmetric hot rolling was applied, considerably dispersive proeutectoid ferrite and pearlite and relatively strong Goss Texture were observed, together with strong {001} 〈0vw〉 Fiber Texture in the outer layers.
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microstructure Texture and magnetic properties of strip casting fe 6 2 wt si steel sheet
Journal of Materials Processing Technology, 2012Co-Authors: Guodong WangAbstract:Abstract An Fe–6.2 wt%Si strip with equiaxed grains and mild {0 0 1}〈0 v w〉 Fiber Texture was produced by twin-roll strip casting process. Then the as-cast strip was treated with or without the hot rolling prior to the warm rolling and annealing. When the hot rolling was not introduced, a fine and heterogeneous warm-rolled microstructure was produced and led to a fine recrystallization microstructure and very weak {0 0 1}〈0 v w〉 Fiber Texture in the annealed sheets. When the hot rolling was introduced, a coarse and homogeneous warm-rolled microstructure was produced and led to a very coarse recrystallization microstructure and much stronger {0 0 1}〈0 v w〉 Fiber Texture in the annealed sheets. The annealed sheets with hot rolling showed a higher magnetic induction and a higher core loss than those without hot rolling.
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Microstructure and Texture Evolution of Strip Casting Fe-6.2wt%Si Steel
Advanced Materials Research, 2011Co-Authors: Hai-tao Liu, Z.y. Liu, Yu Sun, Yi Qing Qiu, Guodong WangAbstract:An Fe-6.2wt%Si as-cast strip with equiaxed grains and obvious {001} Fiber Texture was produced by twin-roll strip casting process. The as-cast strip was successively performed by hot rolling, warm rolling and annealing. The microstructure and Texture evolution at each process stage were investigated by using electron backscatter diffraction and x-ray diffraction. It was found that the finally annealed sheet was characterized by large grain size, mild γ-Fiber Texture and obvious {001} Fiber Texture. Therefore, a high magnetic induction and a low core loss were obtained in the sheet.
G D Wang - One of the best experts on this subject based on the ideXlab platform.
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evolution of microstructure and crystallographic Texture of microalloyed steel during warm rolling in dual phase region and their influence on mechanical properties
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2017Co-Authors: Xinjun Shen, Y J Wu, Shuai Tang, Xiaolong Yang, R D K Misra, Jun Chen, G D WangAbstract:Abstract High strength and high toughness steels can be developed by warm caliber rolling in ferrite region. However, high deformation resistance limits its application. In the present study, warm rolling was applied to plate rolling which is more suitable for industrial production to develop high strength and high toughness steels. To reduce deformation resistance, warm rolling was carried out in dual phase region. We elucidate here the evolution of microstructure and crystallographic Texture and their influence on mechanical properties of microalloyed steel subjected to warm rolling. The study suggests that high strength and high toughness can also be obtained by warm rolling in the dual phase region. Elongated ultrafine microstructure and intense α-Fiber Texture component and γ-Fiber Texture component can be obtained through warm rolling. The main mechanism of microstructure evolution during warm rolling was dynamic recovery. Reducing warm rolling temperature can refine grain size, enhance α-Fiber Texture component and weaken γ-Fiber Texture component. Warm rolling can greatly enhance strength by ~64–158 MPa compared to the conventional controlled rolling (CR) process, and the warm-rolled plates had high elongation in spite of high strength. The toughness was improved because of grain refinement and delamination. Delamination can induce ductile fracture at low temperature, and delay the occurrence of brittle fracture such that high toughness is obtained in steel plates. The effect of warm rolling temperature and impact test temperature on delamination and impact property was elucidated.
Zhuangzhu Luo - One of the best experts on this subject based on the ideXlab platform.
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various curing conditions for controlling ptfe micro nano Fiber Texture of a bionic superhydrophobic coating surface
Materials Chemistry and Physics, 2010Co-Authors: Zhuangzhu Luo, Zhaozhu Zhang, Wenjing Wang, Weimin Liu, Qunji XueAbstract:Abstract A simple and conventional coating-curing process to fabricate superhydrophobic coating surface with both the micro-nano-scale binary structure (MNBS) roughness, and the lowest surface energy hydrophobic groups (−CF 3 ) on engineering materials of stainless steel or other metals was developed by control of curing conditions. Results show that higher temperature and longer cooling time resulted in longer crystallizing process, and the forming PTFE aggregates could slowly produce the crystallization and create the willow-leaf-like or wheat-haulm-leaf-like polymer micro/nano-Fiber on the atop surface. The curing temperature dramatically influences the micro/nano-Fiber Texture of the PTFE/PPS superhydrophobic coating surface, leading to the excellent superhydrophobicity at higher temperature. An increase of the curing temperature is beneficial to fluorine gradient-distribution, PPS thermal-oxidative cross-linking and oxidative reaction, resulting in the enhancement of adhesive strength and mechanical properties of the PTFE/PPS superhydrophobic coatings. A bionic superhydrophobic surface with porous gel-like network and PTFE micro/nano-Fiber Textures could be created by natural cooling in air, whereas PTFE nano-sphere/-papillates Textures could be fabricated by hardening in H 2 O.
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Various curing conditions for controlling PTFE micro/nano-Fiber Texture of a bionic superhydrophobic coating surface
Materials Chemistry and Physics, 2009Co-Authors: Zhuangzhu Luo, Zhaozhu Zhang, Wenjing Wang, Weimin Liu, Qunji XueAbstract:Abstract A simple and conventional coating-curing process to fabricate superhydrophobic coating surface with both the micro-nano-scale binary structure (MNBS) roughness, and the lowest surface energy hydrophobic groups (−CF 3 ) on engineering materials of stainless steel or other metals was developed by control of curing conditions. Results show that higher temperature and longer cooling time resulted in longer crystallizing process, and the forming PTFE aggregates could slowly produce the crystallization and create the willow-leaf-like or wheat-haulm-leaf-like polymer micro/nano-Fiber on the atop surface. The curing temperature dramatically influences the micro/nano-Fiber Texture of the PTFE/PPS superhydrophobic coating surface, leading to the excellent superhydrophobicity at higher temperature. An increase of the curing temperature is beneficial to fluorine gradient-distribution, PPS thermal-oxidative cross-linking and oxidative reaction, resulting in the enhancement of adhesive strength and mechanical properties of the PTFE/PPS superhydrophobic coatings. A bionic superhydrophobic surface with porous gel-like network and PTFE micro/nano-Fiber Textures could be created by natural cooling in air, whereas PTFE nano-sphere/-papillates Textures could be fabricated by hardening in H 2 O.
Xinjun Shen - One of the best experts on this subject based on the ideXlab platform.
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evolution of microstructure and crystallographic Texture of microalloyed steel during warm rolling in dual phase region and their influence on mechanical properties
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2017Co-Authors: Xinjun Shen, Y J Wu, Shuai Tang, Xiaolong Yang, R D K Misra, Jun Chen, G D WangAbstract:Abstract High strength and high toughness steels can be developed by warm caliber rolling in ferrite region. However, high deformation resistance limits its application. In the present study, warm rolling was applied to plate rolling which is more suitable for industrial production to develop high strength and high toughness steels. To reduce deformation resistance, warm rolling was carried out in dual phase region. We elucidate here the evolution of microstructure and crystallographic Texture and their influence on mechanical properties of microalloyed steel subjected to warm rolling. The study suggests that high strength and high toughness can also be obtained by warm rolling in the dual phase region. Elongated ultrafine microstructure and intense α-Fiber Texture component and γ-Fiber Texture component can be obtained through warm rolling. The main mechanism of microstructure evolution during warm rolling was dynamic recovery. Reducing warm rolling temperature can refine grain size, enhance α-Fiber Texture component and weaken γ-Fiber Texture component. Warm rolling can greatly enhance strength by ~64–158 MPa compared to the conventional controlled rolling (CR) process, and the warm-rolled plates had high elongation in spite of high strength. The toughness was improved because of grain refinement and delamination. Delamination can induce ductile fracture at low temperature, and delay the occurrence of brittle fracture such that high toughness is obtained in steel plates. The effect of warm rolling temperature and impact test temperature on delamination and impact property was elucidated.