Recent progress in materials最新文献

Sustainable Concrete with Zero Carbon Footprint 零碳足迹的可持续混凝土

Recent progress in materials Pub Date : 2024-08-09 DOI: 10.21926/rpm.2403019

Ahmed Alawais, Roger P West

{"title":"Sustainable Concrete with Zero Carbon Footprint","authors":"Ahmed Alawais, Roger P West","doi":"10.21926/rpm.2403019","DOIUrl":"https://doi.org/10.21926/rpm.2403019","url":null,"abstract":"This paper describes a method to use solely recycled and by-product materials as constituents to form concrete that can be used in buildings structural applications. As concrete is one of the most important materials in human civilization, where it is used widely in construction, cement and aggregate the main components of concrete cause an emission of large amounts of carbon dioxide, which is the main cause of global warming. The production of one tonne of cement, for example, causes the emission of about 800 kg of this CO2. The growing demand for concrete constitutes a threat to the environment and its resources into the future. According to a market study by The Freedonia Group, in 2019 the world demand for cement was 5.1 billion tonnes which means that more than 2.5 billion tonnes of water and more than 11 billion tonnes of aggregates, both of which are scarce resources, will also be consumed. The goal of this Paper is to describe a 100% substitution of concretes normal constituents to form a sustainable concrete with zero carbon footprint and without compromising concrete mechanical properties. This will demand a pre-treatment of the recycled and by-products components to compensate for the natural strength loss due to their inclusion. Therefore, an innovative novel treatment method is selected for recycled concrete aggregates and chipped rubber to be separately treated and tested to mitigate the loss of strength in proposing a novel recycled activator for GGBS and silica fume. Then these waste recyclable materials are combined in a concrete mix that is 100% recycled and, therefore, significantly more sustainable.","PeriodicalId":87352,"journal":{"name":"Recent progress in materials","volume":"35 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141924813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Construction and Evaluation of a Modular Anthropomorphic Phantom of the Skull with an Exchangeable Specimen Jar to Optimize the Radiological Examination of Temporal Bone Pathology 构建和评估带有可更换标本罐的模块化颅骨拟人模型，优化颞骨病理学放射学检查

Recent progress in materials Pub Date : 2024-07-25 DOI: 10.21926/rpm.2403018

Malin Vestin Fredriksson, L. Kull, Anton Rönnblom, Lennart Flygare, Diana Berggren, Krister Tano

{"title":"Construction and Evaluation of a Modular Anthropomorphic Phantom of the Skull with an Exchangeable Specimen Jar to Optimize the Radiological Examination of Temporal Bone Pathology","authors":"Malin Vestin Fredriksson, L. Kull, Anton Rönnblom, Lennart Flygare, Diana Berggren, Krister Tano","doi":"10.21926/rpm.2403018","DOIUrl":"https://doi.org/10.21926/rpm.2403018","url":null,"abstract":"To develop a modular anthropomorphic phantom to evaluate the performance of radiological techniques for detecting pathologies in the temporal bone region. A phantom was constructed using a human skull, temporal bone specimen, and 3D-printed contour of a human skull. The human skull was embedded in tissue-equivalent plastic, with a cavity to hold the plastic jars containing the exchangeable freshly frozen human temporal bones. Subsequently, stepwise introduction and examination of different clinicopathological scenarios were conducted. Radiological images were nearly identical to those acquired from patients using computed tomography (CT) and cone beam computed tomography (CBCT). The radiological attenuation of polyurethane plastic (PUR) and alginate were similar to those of the soft tissues of living human patients. The mean Hounsfield unit values of the CT slices representing tissue at the brain and temporal bone level were 184 and 171 in the phantom and patient groups, respectively. The modular phantom developed in this study can evaluate radiological techniques and diagnostic possibilities without exposing patients to radiation. To our knowledge, no such modular phantom has been reported in the literature or made available commercially.","PeriodicalId":87352,"journal":{"name":"Recent progress in materials","volume":"31 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141805403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of Pernicious Chemicals on Geopolymer and Alkali-Activated Composites Incorporated with Different Fiber Types: A Review 有害化学品对含有不同纤维类型的土工聚合物和碱活性复合材料的影响：综述

Recent progress in materials Pub Date : 2024-07-22 DOI: 10.21926/rpm.2403017

Khatib Zada Farhan, A. Shihata, Adams Balade Abubakar

{"title":"Impact of Pernicious Chemicals on Geopolymer and Alkali-Activated Composites Incorporated with Different Fiber Types: A Review","authors":"Khatib Zada Farhan, A. Shihata, Adams Balade Abubakar","doi":"10.21926/rpm.2403017","DOIUrl":"https://doi.org/10.21926/rpm.2403017","url":null,"abstract":"Over the past decade, developing geopolymer mixes to replace ordinary Portland Cement (OPC) composites has yielded positive results, leading to extensive research. The incorporation of fibers in geopolymers, besides impacting the mechanical properties, has also significantly impacted durability, mainly when dealing with the most pernicious forms of deterioration resulting from chloride attack, water penetration, sulfate attack, acid attack, as well as freeze-thaw, which occurred through chemical transgression. This study presents a systematic approach to thoroughly review the durability properties of fibrous geopolymer composites exposed to harmful chemicals and extreme environmental conditions. The multi-parameters and factors critically influencing fibrous geopolymers' physical and chemical stability are examined. The study is further aimed at providing an update on the research work undertaken to assess the impact of fiber incorporation on the durability of geopolymer and alkali-activated composites thus far. Furthermore, this review hopes to promote and facilitate research on durability for the long-term, large-scale adoption, and commercialization of advanced fibrous, non-OPC-based materials.","PeriodicalId":87352,"journal":{"name":"Recent progress in materials","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141815772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spark Plasma Sintering of Cu-Ti-Ni Ternary Alloy: Microstructural, Thermal and Electrical Properties 铜钛镍三元合金的火花等离子烧结：微结构、热性能和电性能

Recent progress in materials Pub Date : 2024-07-01 DOI: 10.21926/rpm.2403016

A. O. Oyatogun, E. Ajenifuja, A. Popoola, Olawale Popoola, F. Aramide, G. M. Oyatogun

引用次数: 0

Spin Entanglement – A Unifying Principle for Superconductors and Molecular Bonding 自旋纠缠--超导体和分子结合的统一原理

Recent progress in materials Pub Date : 2024-06-03 DOI: 10.21926/rpm.2402012

Paul O'Hara

引用次数: 0

Enhancing Thermal, Viscoelastic, and Mechanical Properties of Silicone Rubber Matrix through Reinforcements for Use as a Medical Implant 通过增强材料提高硅橡胶基质的热性能、粘弹性能和机械性能，以用作医用植入物

Recent progress in materials Pub Date : 2024-05-03 DOI: 10.21926/rpm.2402011

Kianoush Hatami Dehnou, M. J. Hadianfard

{"title":"Enhancing Thermal, Viscoelastic, and Mechanical Properties of Silicone Rubber Matrix through Reinforcements for Use as a Medical Implant","authors":"Kianoush Hatami Dehnou, M. J. Hadianfard","doi":"10.21926/rpm.2402011","DOIUrl":"https://doi.org/10.21926/rpm.2402011","url":null,"abstract":"The use of silicone rubber as an implant is limited due to its weak properties. In this study, the impact of various reinforcements, such as TiO2 or SiO2 nanoparticles, carbon, or polypropylene fiber micro reinforcements, on the mechanical, thermal, and viscoelastic properties of silicone rubber composites with RTV-4125 matrix was investigated. The composites were evaluated through several tests, including tensile, compression, FTIR, TGA, DMTA, and water adsorption tests. It was found that the composites' tensile strength and compressive stress were increased by adding reinforcements, with the most significant impact on tensile strength observed for SiO2 and the most notable effect on compressive stress at a strain of 0.5 observed for polypropylene fiber. Moreover, the water absorption of the matrix was increased with the addition of reinforcements, with the highest increase observed for Titania nanoparticles. TGA analysis showed that all composites had higher thermal stability than the plain matrix, with the highest degradation temperature observed for the SR-C fiber composite and the highest degradation rate observed for SR-TiO2. Additionally, DMTA analysis revealed that TiO2 nanoparticles considerably decreased the glass transition temperature of the matrix (%28.5), while the other reinforcements had a negligible effect on this temperature. The introduction of reinforcements had a positive impact on the mechanical, thermal, and viscoelastic properties of silicone rubber composites, and the findings of this study can contribute to the development of new and improved silicone rubber composites for implant applications.","PeriodicalId":87352,"journal":{"name":"Recent progress in materials","volume":"18 S21","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141016616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Whisker Bond: From Findings to Concept in Refractories 晶须结合：从耐火材料的发现到概念

Recent progress in materials Pub Date : 2024-04-12 DOI: 10.21926/rpm.2402010

Zongqi Guo, Wenxu Wei

{"title":"Whisker Bond: From Findings to Concept in Refractories","authors":"Zongqi Guo, Wenxu Wei","doi":"10.21926/rpm.2402010","DOIUrl":"https://doi.org/10.21926/rpm.2402010","url":null,"abstract":"Ceramic bonds are conventionally formed during the burning of refractory bricks and by using pre-fabricated blocks or monolithic lining, which is characterized as the coalescence of the particles by liquid sintering. However, the whisker bond was discovered with the outstanding performance of unburnt periclase–spinel–Al bricks while substituting magnesia–chrome bricks in the chromium-free campaign of refractory lining of RH degassers. Thanks to the prominent effect of the whisker bond, such a refractory material demonstrates ultrahigh hot strength, high resistance to slag penetration, and thermomechanical stress. Investigations reveal the initial melting of metal Al at the melting point of 660°C, aluminum liquid rims around the cavities formed before ~800°C, gaseous AlN yielded and distributed throughout the matrix with increasing temperature, gaseous Mg reduced from ~1000°C, and MgAlON whiskers eventually formed in the matrix. Microstructure observations show a dense interwoven whiskers bonded matrix in most residual parts of the used periclase–spinel–Al bricks. The whisker network in the matrix is made up of straight columns of 1–5 µm in diameter and 20–40 µm in length, which is different from birdnesting, nano-size curly whiskers observed in the past. The findings suggest a whisker-bond concept in terms of the bond mode of the whisker network and the process of the vapor-solid forming mechanism.","PeriodicalId":87352,"journal":{"name":"Recent progress in materials","volume":"43 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140710901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Review on the Development of Titanium Diboride Ceramics 二硼化钛陶瓷发展综述

Recent progress in materials Pub Date : 2024-04-03 DOI: 10.21926/rpm.2402009

Xinran Lv, Ziqiang Yin, Zhigang Yang, Junshuai Chen, Shen Zhang, Shaolei Song, Gang Yu

引用次数: 0

A Review on Silk Fibers and Their Medical Applications 丝纤维及其医疗应用综述

Recent progress in materials Pub Date : 2024-03-15 DOI: 10.21926/rpm.2401008

Alhayat Getu Temesgen, Ömer Fırat Turşucular, Elif Dicle Turşucular

引用次数: 0

Capillary Suction Properties of Mortar Made with Recycled Plastic Aggregates Elaborated from Waste Electrical and Electronic Equipment 用废旧电子电气设备制成的再生塑料骨料制作的砂浆的毛细管吸力特性

Recent progress in materials Pub Date : 2024-03-15 DOI: 10.21926/rpm.2401007

Jerónimo Kreiker, Melina Gómez, L. Peisino, Nelio Ochoa, Belén Raggiotti

引用次数: 0