检索范围:
排序: 展示方式:
《化学科学与工程前沿(英文)》 2022年 第16卷 第8期 页码 1268-1280 doi: 10.1007/s11705-022-2143-5
关键词: atomization nonsolvent induced phase separation bicontinuous porous structure micro-nano composite structure oil-water separation
Xiang LI, Yun LUO, Chengtao WANG, Wenguang ZHANG, Yuanchao LI
《机械工程前沿(英文)》 2012年 第7卷 第1期 页码 66-71 doi: 10.1007/s11465-012-0302-y
Electron beam melting process was used to fabricate porous Ti6Al4V implants. The porous structure and surface topography of the implants were characterized by scanning electron microscopy (SEM) and digital microscopy (DM). The results showed that the pore size was around 600 and the porosity approximated to 57%. There was about±50 μm of undulation on implants surfaces. Standard implants and a custom implant coupled with porous sections were designed and fabricated to validate the versatility of the electron beam melting (EBM) technique. After coated with bone-like apatite, samples with fully porous structures were implanted into cranial defects in rabbits to investigate the in vivo performance. The animals were sacrificed at 8 and 12 weeks after implantation. Bone ingrowth into porous structure was examined by histological analysis. The histological sections indicated that a large amount of new bone formation was observed in porous structure. The newly formed bone grew from the calvarial margins toward the center of the bone defect and was in close contact with implant surfaces. The results of the study showed that the EBM produced Ti6Al4V implants with well-controlled porous structure, rough surface topography and bone-like apatite layer are beneficial for bone ingrowth and apposition.
关键词: electron beam melting process implant porous structure bone ingrowth
韩品连
《工程(英文)》 2017年 第3卷 第5期 页码 648-652 doi: 10.1016/J.ENG.2017.05.017
喷气发动机部件的增材设计(AD)和增材制造(AM)将彻底改变传统的航空航天工业。增材设计的独特性开创了喷气发动机设计和制造的新方向,比如梯度材料和微观结构。工程师已经从传统方法和技术的诸多限制中解放出来。增材制造过程最重要的特征之一是其可以确保零件的一致性,因为它始于点,继而到线和层面,直至整个部件完成。设计和制造之间的协调是空气动力学、热力学、结构整合、传热、材料开发和加工等方面取得成功的关键。工程师必须改变设计零件的方式,因为他们要从传统的“减材”方法转移到“增材”的新方法来制造零件。增材设计与增材制造设计不一样。我们需要一种新方法和新工具来协助这种新的设计和制方式。本文详细讨论了增材设计与增材制造中的需求,以及如何解决当前的问题。
Uthen Thubsuang, Suphawadee Chotirut, Apisit Thongnok, Archw Promraksa, Mudtorlep Nisoa, Nicharat Manmuanpom, Sujitra Wongkasemjit, Thanyalak Chaisuwan
《化学科学与工程前沿(英文)》 2020年 第14卷 第6期 页码 1072-1086 doi: 10.1007/s11705-019-1899-8
《化学科学与工程前沿(英文)》 2023年 第17卷 第8期 页码 1065-1074 doi: 10.1007/s11705-023-2313-0
Optimized porous clay heterostructure for removal of acetaldehyde and toluene from indoor air
Pu ZHAO,Lizhong ZHU
《环境科学与工程前沿(英文)》 2016年 第10卷 第2期 页码 219-228 doi: 10.1007/s11783-014-0760-z
关键词: porous clay heterostructure volatile organic compounds adsorption adsorbent indoor air
Maximum entropy based finite element analysis of porous media
Emad NOROUZI, Hesam MOSLEMZADEH, Soheil MOHAMMADI
《结构与土木工程前沿(英文)》 2019年 第13卷 第2期 页码 364-379 doi: 10.1007/s11709-018-0470-x
关键词: maximum entropy FEM fully coupled multi-phase system porous media
Chao Zhang, Chenbao Lu, Shuai Bi, Yang Hou, Fan Zhang, Ming Cai, Yafei He, Silvia Paasch, Xinliang Feng, Eike Brunner, Xiaodong Zhuang
《化学科学与工程前沿(英文)》 2018年 第12卷 第3期 页码 346-357 doi: 10.1007/s11705-018-1727-6
Porous polymers have been recently recognized as one of the most important precursors for fabrication of heteroatom-doped porous carbons due to the intrinsic porous structure, easy available heteroatom-containing monomers and versatile polymerization methods. However, the heteroatom elements in as-produced porous carbons are quite relied on monomers. So far, the manipulating of heteroatom in porous polymer derived porous carbons are still very rare and challenge. In this work, a sulfur-enriched porous polymer, which was prepared from a diacetylene-linked porous polymer, was used as precursor to prepare S-doped and/or N-doped porous carbons under nitrogen and/or ammonia atmospheres. Remarkably, S content can sharply decrease from 36.3% to 0.05% after ammonia treatment. The N content and specific surface area of as-fabricated porous carbons can reach up to 1.32% and 1508 m2·g−1, respectively. As the electrode materials for electrical double-layer capacitors, as-fabricated porous carbons exhibit high specific capacitance of up to 431.6 F·g−1 at 5 mV·s−1 and excellent cycling stability of 99.74% capacitance retention after 3000 cycles at 100 mV·s−1. Furthermore, as the electrochemical catalysts for oxygen reduction reaction, as-fabricated porous carbons presented ultralow half-wave-potential of 0.78 V versus RHE. This work not only offers a new strategy for manipulating S and N doping features for the porous carbons derived from S-containing porous polymers, but also paves the way for the structure-performance interrelationship study of heteroatoms co-doped porous carbon for energy applications.
关键词: porous polymers porous carbons sulfur and nitrogen doping supercapacitor
Hierarchically porous materials: Synthesis strategies and emerging applications
Minghui Sun, Chen Chen, Lihua Chen, Baolian Su
《化学科学与工程前沿(英文)》 2016年 第10卷 第3期 页码 301-347 doi: 10.1007/s11705-016-1578-y
《化学科学与工程前沿(英文)》 2023年 第17卷 第12期 页码 2014-2024 doi: 10.1007/s11705-023-2346-4
关键词: capacitance deionization porous carbon B/N co-doping heavy metal ions water purification
《化学科学与工程前沿(英文)》 2023年 第17卷 第12期 页码 2127-2143 doi: 10.1007/s11705-023-2363-3
关键词: bubble formation porous submerged orifices process intensification foam tray
An investigation on prevalent strategies for XFEM-based numerical modeling of crack growth in porous
《结构与土木工程前沿(英文)》 2021年 第15卷 第4期 页码 914-936 doi: 10.1007/s11709-021-0750-8
关键词: numerical modeling extended finite element method porous media crack growth stress intensity factor
Jing WANG, Hua WANG, Zhenzhen HAN, Jinyu HAN
《化学科学与工程前沿(英文)》 2015年 第9卷 第1期 页码 57-63 doi: 10.1007/s11705-014-1444-8
关键词: electrodeposited porous Pb carbon dioxide electroreduction formic acid
Xiaobin JIANG, Baohong HOU, Yongli WANG, Jingkang WANG
《化学科学与工程前沿(英文)》 2011年 第5卷 第4期 页码 435-441 doi: 10.1007/s11705-011-1139-3
关键词: melt crystallization porous media fractal permeability hyperpure material simulation
标题 作者 时间 类型 操作
Bicontinuous porous membranes with micro-nano composite structure using a facile atomization-assisted
期刊论文
Fabrication and in vivo evaluation of Ti6Al4V implants with controlled porous structure and complex shape
Xiang LI, Yun LUO, Chengtao WANG, Wenguang ZHANG, Yuanchao LI
期刊论文
polybenzoxazine-based carbon microspheres with nitrogen functionalities: Effects of mixed solvents on pore structure
Uthen Thubsuang, Suphawadee Chotirut, Apisit Thongnok, Archw Promraksa, Mudtorlep Nisoa, Nicharat Manmuanpom, Sujitra Wongkasemjit, Thanyalak Chaisuwan
期刊论文
Fabricating sustainable lignin-derived porous carbon as electrode for high-performance supercapacitors
期刊论文
Optimized porous clay heterostructure for removal of acetaldehyde and toluene from indoor air
Pu ZHAO,Lizhong ZHU
期刊论文
Maximum entropy based finite element analysis of porous media
Emad NOROUZI, Hesam MOSLEMZADEH, Soheil MOHAMMADI
期刊论文
S-enriched porous polymer derived N-doped porous carbons for electrochemical energy storage and conversion
Chao Zhang, Chenbao Lu, Shuai Bi, Yang Hou, Fan Zhang, Ming Cai, Yafei He, Silvia Paasch, Xinliang Feng, Eike Brunner, Xiaodong Zhuang
期刊论文
Hierarchically porous materials: Synthesis strategies and emerging applications
Minghui Sun, Chen Chen, Lihua Chen, Baolian Su
期刊论文
Boron and nitrogen co-doped porous carbon derived from sodium alginate enhanced capacitive deionization
期刊论文
The role of single deformed bubble on porous foam tray with submerged orifices on the mass transfer enhancement
期刊论文
An investigation on prevalent strategies for XFEM-based numerical modeling of crack growth in porous
期刊论文
Electrodeposited porous Pb electrode with improved electrocatalytic performance for the electroreduction
Jing WANG, Hua WANG, Zhenzhen HAN, Jinyu HAN
期刊论文