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Basko A, Pochivalov K. Current State-of-the-Art in Membrane Formation from Ultra-High Molecular Weight Polyethylene. Membranes (Basel) 2022; 12:membranes12111137. [PMID: 36422129 PMCID: PMC9696610 DOI: 10.3390/membranes12111137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/03/2022] [Accepted: 11/07/2022] [Indexed: 05/12/2023]
Abstract
One of the materials that attracts attention as a potential material for membrane formation is ultrahigh molecular weight polyethylene (UHMWPE). One potential material for membrane formation is ultrahigh molecular weight polyethylene (UHMWPE). The present review summarizes the results of studies carried out over the last 30 years in the field of preparation, modification and structure and property control of membranes made from ultrahigh molecular weight polyethylene. The review also presents a classification of the methods of membrane formation from this polymer and analyzes the conventional (based on the analysis of incomplete phase diagrams) and alternative (based on the analysis of phase diagrams supplemented by a boundary line reflecting the polymer swelling degree dependence on temperature) physicochemical concepts of the thermally induced phase separation (TIPS) method used to prepare UHMWPE membranes. It also considers the main ways to control the structure and properties of UHMWPE membranes obtained by TIPS and the original variations of this method. This review discusses the current challenges in UHMWPE membrane formation, such as the preparation of a homogeneous solution and membrane shrinkage. Finally, the article speculates about the modification and application of UHMWPE membranes and further development prospects. Thus, this paper summarizes the achievements in all aspects of UHMWPE membrane studies.
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Wei S, Li Y, Wang R, Yang H, Guo Z, Lin R, Huang Q, Zhou Y. Preparation of Cemented Carbide and Study of Copper-Accelerated Salt Spray Corrosion and Erosion Behavior. Materials (Basel) 2022; 15:7023. [PMID: 36234373 PMCID: PMC9571873 DOI: 10.3390/ma15197023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/25/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
(1) Mud pulser carbide rotors, as a core component of ground communication in crude oil exploration, are often subjected to mud erosion and acid corrosion, resulting in pitting pits on the surface, which affects the accuracy. The purpose of this study was to investigate the acid corrosion and erosion behavior of cemented carbide materials and provide a reference for the wider application of cemented carbide materials in the petrochemical industry. (2) Experimental samples of tungsten-cobalt carbide were sintered at a low pressure by powder metallurgy. The petrochemical application environment was simulated by accelerated salt spray corrosion and solid slurry erosion with the aid of acidic copper, and the experimental phenomena were analyzed by SEM (scanning electron microscope), EDS (Energy Dispersive Spectroscopy), and XRD (X-ray diffraction). (3) The experimental results show that the coercivity of the pitted cobalt-cemented tungsten carbide prepared in this study was 17.89 KA/m, and the magnetic saturation strength was 14.42 G·cm3/g. The corrosion rate was the fastest during the acidic copper acceleration experiments from 4 h to 16 h, and the corrosion products of WCo3 and Co3O4 were generated on the corrosion surface. The maximum erosion rate of 0.00104 in the erosion experiment corresponds to a corrosion sample with a corrosion time of 36 h. (4) Therefore, the coercive magnetic force and magnetic saturation strength could be derived from the prepared carbide hard phase grains and carbon content in the appropriate range. The corrosion product in the corrosion process slowed the corrosion rate, and a large amount of cobalt and a small amount of tungsten was lost by oxidation during the corrosion process. The corrosion time had the greatest effect on the erosion performance of the carbide, and the long corrosion time led to surface sparseness, which reduced the erosion resistance.
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Affiliation(s)
| | | | | | | | | | - Rongchuan Lin
- Correspondence: (R.L.); (Q.H.); (Y.Z.); Tel.: +86-136-0603-3316 (R.L.)
| | - Qingmin Huang
- Correspondence: (R.L.); (Q.H.); (Y.Z.); Tel.: +86-136-0603-3316 (R.L.)
| | - Yuhui Zhou
- Correspondence: (R.L.); (Q.H.); (Y.Z.); Tel.: +86-136-0603-3316 (R.L.)
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Lin Z, Zhao X, Wang C, Dong Q, Qian J, Zhang G, Brozena AH, Wang X, He S, Ping W, Chen G, Pei Y, Zheng C, Clifford BC, Hong M, Wu Y, Yang B, Luo J, Albertus P, Hu L. Rapid Pressureless Sintering of Glasses. Small 2022; 18:e2107951. [PMID: 35355404 DOI: 10.1002/smll.202107951] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/09/2022] [Indexed: 06/14/2023]
Abstract
Silica glasses have wide applications in industrial fields due to their extraordinary properties, such as high transparency, low thermal expansion coefficient, and high hardness. However, current methods of fabricating silica glass generally require long thermal treatment time (up to hours) and complex setups, leading to high cost and slow manufacturing speed. Herein, to obtain high-quality glasses using a facile and rapid method, an ultrafast high-temperature sintering (UHS) technique is reported that requires no additional pressure. Using UHS, silica precursors can be densified in seconds due to the large heating rate (up to 102 K s-1 ) of closely placed carbon heaters. The typical sintering time is as short as ≈10 s, ≈1-3 orders of magnitude faster than other methods. The sintered glasses exhibit relative densities of > 98% and high visible transmittances of ≈90%. The powder-based sintering process also allows rapid doping of metal ions to fabricate colored glasses. The UHS is further extended to sinter other functional glasses such as indium tin oxide (ITO)-doped silica glass, and other transparent ceramics such as Gd-doped yttrium aluminum garnet. This study demonstrates an UHS proof-of-concept for the rapid fabrication of high-quality glass and opens an avenue toward rapid discovery of transparent materials.
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Affiliation(s)
- Zhiwei Lin
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Xinpeng Zhao
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Chengwei Wang
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Qi Dong
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Ji Qian
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Guangran Zhang
- Kazuo Inamori School of Engineering, New York State College of Ceramics, Alfred University, New York, 14802, USA
| | - Alexandra H Brozena
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Xizheng Wang
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Shuaiming He
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Weiwei Ping
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Gang Chen
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Yong Pei
- Department of Mechanical Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Chaolun Zheng
- Department of Mechanical Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Bryson Callie Clifford
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Min Hong
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Yiquan Wu
- Kazuo Inamori School of Engineering, New York State College of Ceramics, Alfred University, New York, 14802, USA
| | - Bao Yang
- Department of Mechanical Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Jian Luo
- Department of NanoEngineering, Program of Materials Science and Engineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Paul Albertus
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Liangbing Hu
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
- Center for Materials Innovation, University of Maryland, College Park, MD, 20742, USA
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Yuan S, Ma Y, Li X, Ma Z, Yang H, Mu L. Fabrication and Microstructure of ZnO/HA Composite with In Situ Formation of Second-Phase ZnO. Materials (Basel) 2020; 13:ma13183948. [PMID: 32906641 PMCID: PMC7558110 DOI: 10.3390/ma13183948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 09/01/2020] [Accepted: 09/03/2020] [Indexed: 11/16/2022]
Abstract
Nanometer hydroxyapatite (n-HA) powders were synthesized by the chemical precipitation method, and a novel ZnO/HA composite, which consisted of second-phase particles with different sizes and distributions, was successfully fabricated. ZnO/HA composites were prepared by using powder sintering with different Zn contents and a prefabrication pressure of 150 MPa. Microstructure and local chemical composition were analyzed by a scanning electron microscope (SEM) and energy-dispersive spectrometer (EDS), respectively. The phase composition and distribution of the composite were determined with electron back-scattered diffraction (EBSD) and an X-ray diffractometer (XRD), respectively. The experimental results of the XRD showed that the chemical precipitation method was a simple and efficient method to obtain high-purity n-HA powders. When the sintering temperature was lower than 1250 °C, the thermal stability of HA was not affected by the Zn in the sintering process. Due to sintering in an air atmosphere, the oxidation reaction of Zn took place in three stages, and ZnO as the second phase had two different sizes and distributions in the composites. The compressive strength of ZnO/HA composites, of which the highest was up to 332 MPa when the Zn content was 20%, was significantly improved compared with pure HA. The improvement in mechanical properties was mainly due to the distribution of fine ZnO particles among HA grains, which hindered the HA grain boundary migration and refinement of HA grains. As grain refinement increased the area of the grain boundary inside the material, both the grain boundary and second phase hindered crack development in different ways.
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Affiliation(s)
- Shidan Yuan
- School of Materials Science and Engineering, Jiamusi University, Jiamusi 154007, China; (S.Y.); (Y.M.); (Z.M.); (H.Y.); (L.M.)
| | - Ye Ma
- School of Materials Science and Engineering, Jiamusi University, Jiamusi 154007, China; (S.Y.); (Y.M.); (Z.M.); (H.Y.); (L.M.)
| | - Xingyi Li
- School of Materials Science and Engineering, Jiamusi University, Jiamusi 154007, China; (S.Y.); (Y.M.); (Z.M.); (H.Y.); (L.M.)
- Correspondence:
| | - Zhen Ma
- School of Materials Science and Engineering, Jiamusi University, Jiamusi 154007, China; (S.Y.); (Y.M.); (Z.M.); (H.Y.); (L.M.)
| | - Hui Yang
- School of Materials Science and Engineering, Jiamusi University, Jiamusi 154007, China; (S.Y.); (Y.M.); (Z.M.); (H.Y.); (L.M.)
| | - Liting Mu
- School of Materials Science and Engineering, Jiamusi University, Jiamusi 154007, China; (S.Y.); (Y.M.); (Z.M.); (H.Y.); (L.M.)
- School of Pharmacy, Jiamusi University, Jiamusi 154007, China
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Dehghan-Manshadi A, StJohn DH, Dargusch MS. Tensile Properties and Fracture Behaviour of Biodegradable Iron⁻Manganese Scaffolds Produced by Powder Sintering. Materials (Basel) 2019; 12:E1572. [PMID: 31091657 PMCID: PMC6566156 DOI: 10.3390/ma12101572] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 04/28/2019] [Accepted: 05/06/2019] [Indexed: 11/16/2022]
Abstract
Powder sintering at 1200 °C for 180 min was used to produce Fe-Mn based alloys with tensile properties and an elastic modulus suitable for biodegradable implant applications. The effect of the addition of manganese on the microstructure, tensile properties and fracture behaviour of the Fe-Mn alloys was investigated. The Fe-35Mn alloy with a microstructure dominated by the Austenite phase showed the best set of tensile properties, including ultimate tensile strength and Young's modulus, suitable for orthopaedic implant applications. The fracture surface of the Fe-35Mn alloy showed signs of complex multimode fracture behaviour, consisting of interconnected pores and large segments with signs of ductile fracture, including the presence of dimples as well as micro-voids.
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Affiliation(s)
- A Dehghan-Manshadi
- Queensland Centre for Advanced Materials Processing and Manufacturing (AMPAM), School of Mechanical and Mining Engineering, The University of Queensland, St Lucia, QLD 4072, Australia.
| | - D H StJohn
- Queensland Centre for Advanced Materials Processing and Manufacturing (AMPAM), School of Mechanical and Mining Engineering, The University of Queensland, St Lucia, QLD 4072, Australia.
| | - M S Dargusch
- Queensland Centre for Advanced Materials Processing and Manufacturing (AMPAM), School of Mechanical and Mining Engineering, The University of Queensland, St Lucia, QLD 4072, Australia.
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Dargusch MS, Dehghan-Manshadi A, Shahbazi M, Venezuela J, Tran X, Song J, Liu N, Xu C, Ye Q, Wen C. Exploring the Role of Manganese on the Microstructure, Mechanical Properties, Biodegradability, and Biocompatibility of Porous Iron-Based Scaffolds. ACS Biomater Sci Eng 2019; 5:1686-1702. [PMID: 33405546 DOI: 10.1021/acsbiomaterials.8b01497] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In this work, the role that manganese plays in determining the structure and performance of sintered biodegradable porous Fe-Mn alloys is described. Powder metallurgy processing was employed to produce a series of biodegradable porous Fe-xMn (x = 20, 30, and 35 wt %) alloys suitable for bone scaffold applications. Increasing manganese content increased the porosity volume in the sintered alloys and influenced the ensuing properties of the metal. The Fe-35Mn alloy possessed optimum properties for orthopedic application. X-ray diffraction analysis and magnetic characterization confirmed the predominance of the antiferromagnetic austenitic phase and ensured the magnetic resonance imaging (MRI) compatibility of this alloy. The porous Fe-35Mn alloy possessed mechanical properties (tensile strength of 144 MPa, elastic modulus of 53.3 GPa) comparable to human cortical bone. The alloy exhibited high degradation rates (0.306 mm year-1) in simulated physiological fluid, likely due to its considerable Mn content and the high surface area inherent to its porous structures, while cytotoxicity and morphometry tests using mammalian preosteoblast cells (MC3T3-E1) indicated good cell viability in the Fe-35Mn alloy.
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Affiliation(s)
- Matthew S Dargusch
- Queensland Centre for Advanced Materials Processing and Manufacturing (AMPAM) School of Mechanical and Mining Engineering, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - Ali Dehghan-Manshadi
- Queensland Centre for Advanced Materials Processing and Manufacturing (AMPAM) School of Mechanical and Mining Engineering, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - Mahboobeh Shahbazi
- Institute for Future Environments (IFE), Queensland University of Technology (QUT), Brisbane, Queensland 4001, Australia
| | - Jeffrey Venezuela
- Queensland Centre for Advanced Materials Processing and Manufacturing (AMPAM) School of Mechanical and Mining Engineering, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - Xuan Tran
- Queensland Centre for Advanced Materials Processing and Manufacturing (AMPAM) School of Mechanical and Mining Engineering, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - Jing Song
- School of Dentistry, The University of Queensland, Brisbane, Queensland 4006, Australia.,School of Stomatology, Foshan University, Foshan, Guangdong China, 528041
| | - Na Liu
- School of Dentistry, The University of Queensland, Brisbane, Queensland 4006, Australia.,School of Stomatology, Foshan University, Foshan, Guangdong China, 528041
| | - Chun Xu
- School of Dentistry, The University of Queensland, Brisbane, Queensland 4006, Australia
| | - Qinsong Ye
- School of Dentistry, The University of Queensland, Brisbane, Queensland 4006, Australia
| | - Cuie Wen
- School of Engineering, RMIT University Melbourne, Melbourne, Victoria 3001, Australia
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Nutz FA, Philipp A, Kopera BAF, Dulle M, Retsch M. Low Thermal Conductivity through Dense Particle Packings with Optimum Disorder. Adv Mater 2018; 30:e1704910. [PMID: 29484721 DOI: 10.1002/adma.201704910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Revised: 11/24/2017] [Indexed: 06/08/2023]
Abstract
Heat transport plays a critical role in modern batteries, electrodes, and capacitors. This is caused by the ongoing miniaturization of such nanotechnological devices, which increases the local power density and hence temperature. Even worse, the introduction of heterostructures and interfaces is often accompanied by a reduction in thermal conductivity, which can ultimately lead to the failure of the entire device. Surprisingly, a fundamental understanding of the governing heat transport processes even in simple systems, such as binary particle mixtures is still missing. This contribution closes this gap and elucidates how strongly the polydispersity of a model particulate system influences the effective thermal conductivity across such a heterogeneous system. In a combined experimental and modeling approach, well-defined mixtures of monodisperse particles with varying size ratios are investigated. The transition from order to disorder can reduce the effective thermal conductivity by as much as ≈50%. This is caused by an increase in the thermal transport path length and is governed by the number of interparticle contact points. These results are of general importance for many particulate and heterostructured materials and will help to conceive improved device layouts with more reliable heat dissipation or conservation properties in the future.
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Affiliation(s)
- Fabian A Nutz
- Department of Chemistry, University of Bayreuth, Universitaetsstr. 30, 95447, Bayreuth, Germany
| | - Alexandra Philipp
- Department of Chemistry, University of Bayreuth, Universitaetsstr. 30, 95447, Bayreuth, Germany
| | - Bernd A F Kopera
- Department of Chemistry, University of Bayreuth, Universitaetsstr. 30, 95447, Bayreuth, Germany
| | - Martin Dulle
- JCNS-1/ICS-1: Neutron Scattering, Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, 52428, Jülich, Germany
| | - Markus Retsch
- Department of Chemistry, University of Bayreuth, Universitaetsstr. 30, 95447, Bayreuth, Germany
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