{"title":"General prediction of transport and thermodynamic properties of deep eutectic solvents based on choline chloride using machine learning","authors":"Farshid Zargari, Alireza Nowroozi","doi":"10.1016/j.rinma.2025.100730","DOIUrl":"10.1016/j.rinma.2025.100730","url":null,"abstract":"<div><div>This study delves into the potential of machine learning (ML) to predict the properties of choline chloride-based deep eutectic solvents (DESs), focusing on density, viscosity, and ionic conductivity. Utilizing a dataset derived from an extensive review of scientific literature, we applied a variety of ML models, including tree-based algorithms and neural networks, to establish correlations between DES features and their physical properties. Our findings demonstrate that models like Random Forest, XGBoost, LightGBM, and Stacked Models excel in predictive accuracy, particularly for density and viscosity, as evidenced by high R2 and Pearson correlation values. Our exploration into ionic conductivity revealed that despite initial assumptions, the size of the dataset did not limit the predictive capability. Learning curve analysis illustrated that models like LightGBM performed consistently well across varying dataset sizes, maintaining accuracy in their predictions. Notably, the Stacked Models emerged as the most effective, suggesting the benefit of combining different ML approaches for such predictions. The study also employed SHAP analysis to discern the impact of specific molecular features on the predictive outcomes, providing deeper insights into DES behavior. In essence, our results confirm that ML can be a powerful tool in the predictive modeling of DES properties, which has significant implications for the design and optimization of these solvents in various industrial applications.</div></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"27 ","pages":"Article 100730"},"PeriodicalIF":0.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144190031","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}
{"title":"Microstructure, phase composition, and oxidation resistance of alloys of Nb-Ti-Al system produced by electron beam melting and zone melting","authors":"Iryna Trosnikova , Anatolii Minitskyi , Ievgen Byba , Dmytro Vedel , Мaksym Barabash","doi":"10.1016/j.rinma.2025.100729","DOIUrl":"10.1016/j.rinma.2025.100729","url":null,"abstract":"<div><div>Titanium aluminides and alloys based on them are promising heat-resistant materials. These alloys are promising for using in equipment working under severe conditions, in particular in aircraft construction, mechanical engineering and space technology. The main techniques of providing the necessary complex of mechanical properties of intermetallic alloys are electron beam melting or zone melting. The work demonstrates that ternary alloys of the Nb-Ti-Al system can be used to optimize the parameters of electron beam melting and zone melting to provide enhanced properties of titanium alloys. The heat resistance of alloys based on the Nb-Ti-Al system is determined. The oxidation behavior of these alloys during high-temperature annealing at 1200<sup>о</sup>С for 120 min is studied.</div></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"27 ","pages":"Article 100729"},"PeriodicalIF":0.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144212007","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}
Wahyu Dwi Lestari , Abdi Satryo Mukti , Ndaru Adyono , I Gede Susrama Mas Diyasa , Ni Ketut Sari , Wahyu Caesarendra , Chatarina Sari , Nur Rachmat , Iwan Budiwan
{"title":"Optimization of 3D printing parameters for carbon fiber reinforced polymer (CFRP) material: Impact and hardness analysis using Taguchi method","authors":"Wahyu Dwi Lestari , Abdi Satryo Mukti , Ndaru Adyono , I Gede Susrama Mas Diyasa , Ni Ketut Sari , Wahyu Caesarendra , Chatarina Sari , Nur Rachmat , Iwan Budiwan","doi":"10.1016/j.rinma.2025.100727","DOIUrl":"10.1016/j.rinma.2025.100727","url":null,"abstract":"<div><div>Carbon fiber-reinforced polymers (CFRP) have gained significant attention due to their excellent mechanical properties. However, optimizing 3D printing parameters remains a challenge in achieving enhanced material performance. In this study, a commercial CFRP filament with a polymeric matrix composed of polylactic acid (PLA) was used. The main objective was to analyze the impact strength and hardness of printed samples using the Taguchi method. The factors utilized were nozzle temperature, infill density, printing speed, layer thickness, infill pattern, and orientation. Confirmation tests were conducted to confirm the optimal parameter setting by comparing the experimental result with calculated values. The confirmation test validated that the optimal parameters yielded a Shore D hardness value of 74.8132 and impact strength of 1.261 J. ANOVA results indicated that the layer thickness (38.23 %) and infill density (25.01 %) significantly affected the hardness, whereas infill density (65.57 %) and layer thickness (18.31 %) were the predominant factors affecting impact strength. The findings confirm that Taguchi technique effectively optimizes 3D printing parameters of CFRP materials for improved mechanical properties and manufacturing efficiency. Future research should be directed towards hybrid post-processing techniques, fatigue and wear resistance tests, internal structure optimization, and environmental tests for further performance improvement of CFRP in industries.</div></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"27 ","pages":"Article 100727"},"PeriodicalIF":0.0,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242512","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}
Noha M. abdeltawab , Mohamed Elshazly , Ahmed Y. Shash , M. El-Sherbiny
{"title":"Study the effect of processing parameters on friction stir welding of AA5083 aluminum alloy reinforced with Al-SiC matrix","authors":"Noha M. abdeltawab , Mohamed Elshazly , Ahmed Y. Shash , M. El-Sherbiny","doi":"10.1016/j.rinma.2025.100731","DOIUrl":"10.1016/j.rinma.2025.100731","url":null,"abstract":"<div><div>Improving the friction stir welding of AA5083 has been documented in recent applications in corrosive mediums like shipbuilding and chemical storage vessels. This article studies the effect of reinforcing the AA5083 friction stir welding joint with aluminum-silicon carbide matrix particles synthesized by ball milling with different silicon carbide weight ratios. As well as the effect of welding process parameters (transverse speed and rotational speed) on the tensile strength, hardness, and corrosion properties of the reinforced joint was investigated. Results show that as the silicon carbide weight ratio in the reinforcement matrix increases the joint strength and corrosion resistance increase, while corrosion weight loss decreases with an increase in transverse speed. Microstructure and hardness investigation show that the rotational speed of 800 rpm was the most efficient in mixing reinforcement in the joint so it has the higher strength and lower corrosion weight loss at fixing the other parameters, it shows also the transverse speed of 40 mm/min give the welding the adequate amount of heat input to maintain the interconnection between grains that have the highest strength in fixing the other parameters.</div></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"27 ","pages":"Article 100731"},"PeriodicalIF":0.0,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144196464","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}
Younggwon Cho, Kichang Hong, Inhan Kang, Jungwon Kang
{"title":"Facile preparation of nickel phosphide/multi-walled carbon nanotube films for high-performance Li–O2 batteries","authors":"Younggwon Cho, Kichang Hong, Inhan Kang, Jungwon Kang","doi":"10.1016/j.rinma.2025.100726","DOIUrl":"10.1016/j.rinma.2025.100726","url":null,"abstract":"<div><div>Lithium–air batteries have been attracting attention as post energy storage systems in the last 10 years due to the advantage of having 10 times higher energy density than lithium–ion batteries. Developing proper catalysts is one of the major current challenge to overcome their high overpotential and long life cycle span. Here, we demonstrated facile preparation of Ni<sub>2</sub>P/multi-walled carbon nanotube (MWCNT) films through vacuum filration. The free-standing flims shows that Ni<sub>2</sub>P particles well bounded within the MWCNT framework without any deformation, confirmed by scanning electron microscopy (SEM) images and X-ray diffraction (XRD) patterns. The Li–O<sub>2</sub> cell employing Nickel Phosphide/MWCNT films as a cathode material shows and initial ∼6 % increase in energy efficiency and a subsequent 10 cycle retention.</div></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"26 ","pages":"Article 100726"},"PeriodicalIF":0.0,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114991","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}
I. Alejandra Corro-Escorcia , Juan Hernández-Ávila , Eduardo Cerecedo-Sáenz , F.R. Barrientos-Hernández , Montserrat Cruz-Hernández , Norman Toro , Edelmira Gálvez , M.P. Gutiérrez-Amador , Eleazar Salinas-Rodríguez
{"title":"Synthesis of tobermorite 11 Å during the formation of autoclaved aerated concrete with the addition of diatomite","authors":"I. Alejandra Corro-Escorcia , Juan Hernández-Ávila , Eduardo Cerecedo-Sáenz , F.R. Barrientos-Hernández , Montserrat Cruz-Hernández , Norman Toro , Edelmira Gálvez , M.P. Gutiérrez-Amador , Eleazar Salinas-Rodríguez","doi":"10.1016/j.rinma.2025.100725","DOIUrl":"10.1016/j.rinma.2025.100725","url":null,"abstract":"<div><div>The fundamental structure of an autoclaved aerated concrete, is closely linked with the formation of tobermorite, which is called the heart of concrete and directly affects its mechanical properties. However the presence of only tobermorite 11 Å (instead that of 9 or 14 Å), is more desirable. For this reason, it is important to study what are the conditions during the synthesis of concrete, that can favor the formation of this phase. In this paper, the effect of natural diatomite addition in conjunction with the evaluation of two different calcium-silicon oxides ratio during the synthesis of an autoclaved aerated concrete, were studied. The main objective was to promote the tobermorite 11 Å formation, which can improve the compressive strength of that concrete. The synthesis was carried out testing two CaO/SiO<sub>2</sub> ratios (0.5 and 0.8) with different percentages of diatomite (0, 0.5, 0.10, 0.15, 0.20 and 0.25 %). It was found that with an oxide ratio of 0.5 and 0.15 % of diatomite, the presence of tobermorite 9 Å increased from 29 to 33 % and the concrete reached a maximum value compressive strength of 4.66 MPa. On the other hand, for an oxide ratio of 0.8 and 0.20 % of diatomite, it was found the presence of only tobermorite 11 Å (which corresponds to 38 %), getting so a maximum value of 4.73 MPa. In both previous cases, it was found an increase of 16.5 and 18.25 % respectively, in comparison with the 4 MPa necessary for this type of materials, to be considered for structural applications. According to the above, the oxide ratio of 0.8, in conjunction with addition of diatomite, can promote the formation of tobermorite 11 Å mainly, which also improved the compressive strength values.</div></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"26 ","pages":"Article 100725"},"PeriodicalIF":0.0,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084572","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}
{"title":"Investigating the correlation between sand particle size and ultrasonic properties of mortar: A comprehensive analysis using ultrasonic techniques","authors":"Hicham Mesbah , Hicham Lotfi , Mounir Tafkirte , Hicham Banouni , Mohamed Ettahiri , Bouazza Faiz","doi":"10.1016/j.rinma.2025.100717","DOIUrl":"10.1016/j.rinma.2025.100717","url":null,"abstract":"<div><div>The accurate characterization of construction materials is crucial for ensuring their durability and performance in the construction industry. This study focuses on the non-destructive characterization of mortar using ultrasonic techniques to investigate the impact of sand grain size on ultrasonic properties. Using 1 MHz transducers, we observed significant non-linear variations in ultrasonic velocity, with a decrease to 3100 m/s at a particle size of 0.3 mm, followed by an increase to 3700 m/s as the grain size approached 0.7 mm. These results demonstrate a strong correlation between sand grain size and the ultrasonic properties of mortar, highlighting the influence of particle size on parameters such as transmission coefficient and acoustic impedance. By selecting appropriate sand grain sizes, the risk of cracking and degradation in mortar can be minimized, leading to improved durability and structural integrity. This study contributes actionable insights for optimizing mortar compositions, paving the way for enhanced construction materials.</div></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"26 ","pages":"Article 100717"},"PeriodicalIF":0.0,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072296","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}
{"title":"Determining the quality of imprinted polymers using diverse feature selections methods, Ada Boost and Gradient boosting algorithms","authors":"Bita Yarahmadi , Seyed Majid Hashemianzadeh","doi":"10.1016/j.rinma.2025.100722","DOIUrl":"10.1016/j.rinma.2025.100722","url":null,"abstract":"<div><div>The use of polymer informatics is an appropriate solution to overcome the problems of optimizing the synthesis conditions of polymers, which has attracted the attention of many researchers. The aim of this study is to develop a comprehensive model to predict the imprinting factor (IF) value for different template molecules. Therefore, molecularly imprinted polymers (MIPs) were synthesized for various template molecules, their IF values were calculated, and then a data set table was prepared. By utilizing the Ada Boost algorithm, Gradient boosting algorithm and various feature selection methods such as forward selection, mutual information, correlation statistics, chi-square and Recursive Feature Elimination (RFE), an accurate model was created to predict IF. The results showed that using the Ada Boost algorithm and the RFE feature selection method, improved modeling accuracy achieving a maximum R<sup>2</sup> score (R<sup>2</sup> = 0.937, Adjusted R<sup>2</sup> = 0.936) and minimum errors (MAE = 0.915, MSE = 7.052). The accuracy of the models obtained using the gradient boosting algorithm was lower compared to the Ada Boost algorithm, and the maximum accuracy of the model was obtained using the mutual information method. This paper provides specific quantitative insights into how each feature selection method affected prediction performance, supported by relevant metrics.</div></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"27 ","pages":"Article 100722"},"PeriodicalIF":0.0,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144212423","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}
{"title":"Characterizations of nickel-rich NMC lithium-ion battery cathode with varying transition metal ratios synthesized via hydroxide co-precipitation","authors":"Handi Muhtadi , S. Suwarno , Achmad Subhan","doi":"10.1016/j.rinma.2025.100724","DOIUrl":"10.1016/j.rinma.2025.100724","url":null,"abstract":"<div><div>Cobalt content in Li-ion battery cathodes has become a major concern due to its price volatility and the limited availability of sources. Low-cobalt, Ni-rich active materials are promising candidates for next-generation cathodes because of their high capacities, and many proposed processing methods for these materials can further reduce both cost and environmental impact. However, the resulting lattice changes can lead to structural degradation and capacity fading. In this study, we report the effects of cobalt content on the crystal structure and morphology of nickel-rich Li[NixCoyMnz]O<sub>2</sub> (where x ≥ 0.8; x + y + z = 1) cathode materials synthesized using the hydroxide-route co-precipitation method. The synthesized cathodes were characterized through Particle Size Distribution (PSD), scanning electron microscope-energy dispersive spectroscopy (SEM-EDS), and X-ray diffraction (XRD). Their electrochemical properties were examined using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry. Results indicate that slight variations in cobalt content did affect the synthesized cathode slightly, highlighting the potential for low-cobalt electrodes.</div></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"26 ","pages":"Article 100724"},"PeriodicalIF":0.0,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935172","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}
Mohammed B. AbdulWahid , Osama H. Abdullah , Othman Hamad Farhan , Maytham Imad Ahmed , Ahmed Mishaal Mohammed , Yousif Hendi Khalaf
{"title":"Sustainable synthesis and characterization of silver nanoparticles through Juncus acutus flowers and evaluation of their ability to detect NO2 and NH3 gases","authors":"Mohammed B. AbdulWahid , Osama H. Abdullah , Othman Hamad Farhan , Maytham Imad Ahmed , Ahmed Mishaal Mohammed , Yousif Hendi Khalaf","doi":"10.1016/j.rinma.2025.100723","DOIUrl":"10.1016/j.rinma.2025.100723","url":null,"abstract":"<div><div>In this effort, the Juncus acutus plant's flowers were used to create silver nanoparticles (AgNPs). Using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and energy dispersive X-ray (EDX), the characteristics of the prepared silver nanoparticles were evaluated. The size of the silver nanoparticles was 38.40 nm. At various temperatures and times, the silver nanoparticles were assessed as gas sensors for the gases NO<sub>2</sub> and NH<sub>3</sub>. At 100 °C, the highest sensitivity response to NO<sub>2</sub> gas was 15.09 %. However, in the case of the NH<sub>3</sub> gas, the highest sensitivity response was 25 % at 200 °C. For NO<sub>2</sub>, the sensor displayed the smallest response and recovery times at various temperatures: 19.71s at 300 °C and 33.3s at 100 °C, respectively, and for NH<sub>3</sub> gas, 16.74s at 200 °C and 20.25s at 300 °C, respectively. These outcomes highlight the sensor's exceptional response and recovery abilities.</div></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"26 ","pages":"Article 100723"},"PeriodicalIF":0.0,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143932027","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}