researchersjob’s Post

SummaPhD Position on Multi-Material Additive Manufacturing: The Advanced Manufacturing Lab (AMLZ) at ETH Zurich is offering a fully-funded PhD position as part of a Franco-Swiss research project focused on the manufacturing, characterization, and modeling of additively manufactured multi-material parts. This research aims to explore the feasibility and mechanical properties of bi-material parts produced through Laser […]

I'm sharing my third research accomplishment from my PhD. My work, titled "On the hot isostatic pressing of Inconel 625 structures built using laser powder bed fusion at higher layer thickness," was published in the prestigious The International Journal of Advanced Manufacturing Technology (Volume 120, March 2022).This study explores the effects of Hot Isostatic Press (HIP) on additively manufactured Inconel 625 components built using laser powder bed fusion (LPBF) at a higher 100 μm layer thickness. Our findings reveal: ✔️ HIP treatment reduces process-induced porosity from 0.43% to ~0.01%, yielding near-fully dense parts. ✔️ Microstructure transforms from fine columnar dendrites to coarse equiaxed grains. ✔️ Improved ductility and reduced anisotropy compared to as-built LPBF parts. ✔️ Hardness values similar to conventional Inconel 625 after HIP. This research paves the way for creating isotropic, defect-free engineering components from LPBF of Inconel 625 built at high layer thickness, through optimized HIP post-processing. We believe our findings will be invaluable for industries like aerospace, energy, and others using this high-performance superalloy. I'm grateful to my co-authors Dr Jinoop Arackal Narayanan, Dr Christ P. Paul, Dr. Anil Kumar Vesangi, Mr DINESHRAJ S, Dr Rashmi Singh, and Dr Kushvinder S. Bindra for their outstanding collaboration on this work. Feel free to connect if you'd like to discuss this research further! The full paper can be accessed at [Journal Link in the comments].

My doctoral research is part of the project POLYFRONT “Material Synthesis via thermal polymerization fronts”. This is a joint project between research groups from Vrije Universiteit Brussel (VUB), Université libre de Bruxelles (ULB), Université catholique de Louvain (UCL) and Louisiana State University (LSU). My role is to model and simulate polymerization fronts by developing two-phase flow models and related algorithms for their numerical treatment. Over my first six months as a PhD candidate, I was able to develop a preliminary two-phase flow model for thermal frontal polymerization, it is a process that converts liquid solutions into solid polymer via front propagation. This process has gained interest as a fast, energy-efficient solution for advanced manufacturing, like cure-on-demand materials or composites. I am developing a preliminary 2D model including only the chemical phenomena. The plan is to develop a simplified model to obtain results, and after that, I can add the other effects and complexities to the model. Currently, I am still in the code testing process. Looking forward to more learnings and achievements 🙏 📈 ❤️ #Research #CFD #PhD #Polymerization #academicjourney

🎊 EXCITING NEWS 🎊 Our latest review paper, 'Novel constitutive models, challenges and opportunities of shape memory polymer composites' authored by PhD Merve Uyan , Prof. Dr. Melih Soner Celiktas has been published by #EmergingMaterialResearch. Explore the details by clicking the link below. ✨ #ASBERG #CompositeMaterials #SMPs #SMPC You can click the link to access the full article in English. https://lnkd.in/dJHJqz-H

🎉 I am very proud to present our latest Review entitled “The Second Laser Revolution in Chemistry: Emerging Laser Technologies for Precise Fabrication of Multifunctional Nanomaterials and Nanostructures” in Advanced Functional Materials (https://lnkd.in/d7tD-edG), where we have tried to summarize the numerous chemical processes that take place under Laser Irradiation. In this Review, we provide a detailed systematization of these processes, covering both known and new laser technologies for the preparation of promising nanostructures and nanomaterials. We consider gases and liquids as potential reactive media affecting the fabrication process and analyze both subtractive and additive manufacturing methods. From first idea to realization took about 2.5 years, and I would like to SINCERELY thank my Colleagues (Prof. Alina Manshina and Ms. Evgeniia Khairullina from Saint Petersburg State University; Prof. Mizue Mizoshiri from Nagaoka University of Technology, Prof. Andreas Ostendorf from Ruhr University Bochum, Prof. Sergei Kulinich from Tokai University; Prof Sergey Makarov from Qingdao Innovation and Development Center, Harbin Engineering University; Dr. Aleksandr Kuchmizhak from Institute of Automation and Control Processes and Prof. Evgeny Gurevich from FH Münster), as without them this Review could not be a reality. Personally, this is a very important milestone for me, which is comparable to the defense of a PhD a few years ago 😎 . We look forward to feedback and excited discussions in the near future! 😉 For the full paper 👉https://lnkd.in/dkY39brf #DirectLaserWriting #FlexibleElectronics #lasertechnology #LaserInducedGraphene #DeepEutecticSolvents #laserablationinliquids #Nanophotonics #LIPSS #PLAL #Photochemistry #HybridNanotexturing #DirectLaserMetallization #TwoPhotonPolymerization #LaserInducedSelectiveActivation #SelectiveSurfaceActivationInducedByLaser #Nanoparticle #LaserInducedBackSideWetEtching #GreenChemistry #SERS

Our research on Grain Rotation Mechanisms in Nanocrystalline Materials has been accepted for publication in "Science". IRG1 faculty members Prof. Xiaoqing Pan and Prof. Horst Hahn have uncovered key insights into grain rotation mechanisms in nanocrystalline materials using advanced four-dimensional scanning transmission electron microscopy (4D-STEM). Their research provides the first direct evidence of how shear-coupled grain boundary dynamics drive grain growth and rotation during processes like recrystallization and annealing. These findings open new avenues for advanced grain boundary engineering and enhanced design of nanocrystalline materials, while also establishing a foundational framework for studying and developing complex concentrated materials, such as high-entropy alloys. https://lnkd.in/diXW-rUe

📣 𝐩𝐫𝐞𝐬𝐞𝐧𝐭𝐢𝐧𝐠 𝐧𝐞𝐰 𝐫𝐞𝐬𝐞𝐚𝐫𝐜𝐡 𝐟𝐢𝐧𝐝𝐢𝐧𝐠𝐬! A multi-scale research on joining thermoplastics to thermoset composites by using UV light will be presented by PhD Researcher Liran Katz during the Fracture of Polymers, Composites and Adhesives conference on the 27th of March. The event is organized by the European Structural Integrity Society (ESIS) and will be held in Les Diablerets, Switzerland. The study, entitled '𝑨 𝒎𝒖𝒍𝒕𝒊-𝒔𝒄𝒂𝒍𝒆 𝒍𝒆𝒗𝒆𝒍 𝒔𝒕𝒖𝒅𝒚 𝒐𝒏 𝒕𝒉𝒆 𝒋𝒐𝒊𝒏𝒊𝒏𝒈 𝒐𝒇 𝑪/𝑷𝑨𝑬𝑲 𝒕𝒐 𝑪/𝑬𝒑𝒐𝒙𝒚 𝒗𝒊𝒂 𝒂 𝒎𝒂𝒕𝒆𝒓𝒊𝒂𝒍 𝒅𝒓𝒊𝒗𝒆𝒏 𝒂𝒑𝒑𝒓𝒐𝒂𝒄𝒉', aimed to design a robust and reliable joining methodology of the interface adhesion between thermoplastics and thermosets. The approach taken in Liran’s research allows in principle a cost effective, efficient solution for structural aerospace applications. In order to understand the underlying mechanisms required to create a robust and structural joint, the study was conducted on a multi-scale level. Read more: 👉 https://lnkd.in/eGAHTFJS #ESIS #thermoplastics #research #joining #materials #switzerland

📢 Exciting News! Check out our latest articles accepted for publication in the journal 'Additive Manufacturing'. This research focuses on the impact of microstructural heterogeneities on the creep behavior of additively manufactured γ'-forming Ni-based alloys. Manuscript 1 investigates structure-property relationships through experiments, while Manuscript 2 explores these relationships further with simulations. 1️⃣ The Influence of Microstructural Heterogeneities on High-Temperature Mechanical Properties of Additively Manufactured γ'-forming Ni-based alloys 🔗 https://lnkd.in/eWAngSHf 2️⃣ Understanding the High-Temperature Deformation Behavior of Additively Manufactured γ'-forming Ni-based alloys by Microstructure Heterogeneities-Integrated Creep Modelling 🔗 https://lnkd.in/e-JRUGMt The work is a collaboration between: Steel Institute at RWTH Aachen University (Venkatesh Pandian, Betül Bezci, Ulrich Krupp), Digital Additive Production DAP - RWTH Aachen (Bhupesh Verma, Johannes Henrich Schleifenbaum), QuesTek Europe AB (Fuyao Yan, Ida S. Berglund), Institute of Physics of Materials, Czech Academy of Sciences, v. v. i. (Ivo Šulák, Zdeněk Chlup, Tomáš Záležák ), VDM Metals International GmbH (Benedikt Nowak), Chair Materials for Additive Manufacturing at Technical University of Berlin (Frederike Brasche, Christian Haase). Further, the research is supported by the European Union’s Horizon 2020 research and innovation program (grant agreement No 958192) and the German Federal Ministry of Education and Research within the NanoMatFutur project “MatAM - Design of additively manufactured high-performance alloys for automotive applications” (project ID 03XP0264). Stay tuned for more updates from the Steel Institute at RWTH Aachen University! #Research #AdditiveManufacturing #NickelAlloys #CreepBehavior #MaterialScience #Horizon2020 #NanoMatFutur #HighPerformanceAlloys

This month I completed my Biomaterials Engineering undergraduate course at Loughborough University! My final year project was titled 'Enhancing the Durability of Nanocomposite Polymer Temperature Sensors'. This focused on the optimisation of various compositions of polmer (PCL), fatty acids (LA & MA), and graphene (GNP), to enhance the thermal properties of the healthcare temperature sensor. The overall goal was to synthesise a material that had the desirable properties to be used in the medical industry, with those including flexibility, sensitivity, and conductivity, which can then be used for continuous healthcare monitoring, both in clinic and at home. I conducted this project using an array of characterisation techniques, including Positive Temperature Coefficient measurements (PTC) to measure the change in resistivity as the temperature is increased, Differential Scanning Calorimetry (DSC) to assess the phase changes of each material, and Scanning Electron Microscopy (SEM) to examine the morphology and structure of the samples. The project concluded that the fatty acids reduced the phase changing temperatures, reducing the resistivity and increasing the sensitity of the samples, and the graphene nanoplatelets increased the conductivity of the samples. The images below are some taken using the SEM microscope, to image the samples at nanoscale to assess how well the components blend together. This project taught me an array of laboratory skills and procedures, and I look forward to using these in my future career. #Laboratory #Engineering #Bioengineering #PolymerScience

🔔Open for submissions🔔 We are excited to invite you to contribute an article or a review to this excellent Special Issue: 📖 "Optical Thin Films and Coatings: Synthesis, Characterisation and Applications" 📆 Deadline: 10 November 2024 👉 Link: https://t.ly/3QD0A Edited by: 🎓 Dr. Marcio Godoy of Universidade Federal de São Carlos - UFSCar Oficial 🎓 Dr. Marcelos Lima Peres of Universidade Federal de Itajubá Research areas may include (but are not limited to) the following: ✅ Novel thin-film and coating fabrication methods; ✅Rare-earth-doped thin films and coatings; ✅Defect-related emission/absorption and optical matching; ✅Organic, inorganic, smart, and 2D luminescent materials;  ✅Light-assisted electronic transport; ✅Wave-guide innovations; ✅Quantum interference and spin-orbit coupling effects; ✅Electric transport in 2D electron/hole gases at interfaces; ✅Phenomena under extreme environmental conditions, such as low/high temperatures and high magnetic fields. Looking forward to receiving your submission! 🤝 #opticalmaterials #thinfilmdevices #smartcoatings #photoconduction #extremeconditions #CallForPapers #SpecialIssue #MDPICoatings #MDPI #OpenAccess #OpenAccessJournal #ScientificJournal #OpenForSubmissions