Advanced Functional and Structural Thin Films and Coatings & Honorary Palkowski Session: Honorary Palkowski Session II
Sponsored by: TMS Functional Materials Division, TMS: Thin Films and Interfaces Committee
Program Organizers: Gerald Ferblantier, University of Strasbourg - IUT LP / ICube Laboratory - CNRS; Adele Carrado, University of Strasbourg; Ramana Chintalapalle, University of Texas at El Paso; Karine Mougin, Cnrs, Is2m; Ravindra Nuggehalli, New Jersey Institute of Technology; Heinz Palkowski, Clausthal University of Technology
Monday 2:00 PM
March 20, 2023
Room: Aqua E
Location: Hilton
Session Chair: Ravindra Nuggehalli, New Jersey Institute of Technology; Karine Mougin, IS2M CNRS; Adele Carrado, University of Strasbourg, IPCMS, CNRS
2:00 PM Introductory Comments
2:05 PM Keynote
Dry coatings: Modulating the Releasing of Plasma-grafted Biologically Active Molecules from Medical Devices to Impact the Biological Response: Diego Mantovani1; Pascale Chevallier1; Andranik Sarkissian2; 1Laval University; 2Plasmionique Inc.
Over the last 50 years, biomaterials, prostheses and implants saved and prolonged the life of millions of humans around the globe. Today, nano-biotechnology, nanomaterials and surface modifications provide a new insight to the current problem of biomaterial complications, and even allows us to envisage strategies for the organ shortage. In this talk, creative strategies for modifying and engineering the surface and the interface of biomaterials, including metals, polymers from natural and synthetic sources, will be discussed. The unique potential of low-pressure low-temperature plasma surface modification will be detailed with the overall aim to envisage today how far innovation can bring tomorrow solutions for reparative and regenerative medicine. Applications for health will be emphasized, including biologically active-based, biomimetic, low-fouling, bactericidal, and antiviral coatings.
2:45 PM Invited
A Carbon Fiber Cloth / Calcium-deficient Hydroxyapatite Biomaterial as a Promising Patch for Bone Repair: F. Olivier1; N. Rochet2; Sylvie Bonnamy1; 1CNRS, Univ. Orléans, ICMN; 2CNRS, INSERM, Univ. Côte d'Azur
The development of a bone patch in using an activated carbon fiber cloth (ACFC) is studied. To improve ACFC biological properties, at first an uniform calcium-deficient hydroxyapatite (CDA) coating is deposited on its surface by sono-electrodeposition process. Then, cations-substituted CDA coatings were synthetized. A 3 to 7 at. % strontium substitution range is specifically analyzed. Then, we took benefit of the ACFC adsorption and the CDA bioactivity to study the adsorption capabilities and release kinetics of aspirin and tetracycline on biomimetic apatite and ACFC, then on the CDA/ ACFC biomaterial. This latter was loaded with two-drugs leading to a double adsorption functionality. In vitro biological tests allowed to analyse osteoblast viability and proliferation. In vivo experiments performed in a model of rat femoral defect allowed to investigate bone regeneration. This work highlights the possibility of bone patches with controlled (multi)drug release to be used for bone repair.
3:15 PM Cancelled
Global Engagement – Taking the Example of the Institute of Metallurgy at Clausthal University of Technology: Astrid Abel1; 1Clausthal University of Technology
Science diplomacy has become more important than ever. Therefore Global engagement – preferrably on a reciprocal basis and as well as in reserach as in mobility flows – has become one of the most important factors for instutions of higher education. It provides participating institutions not only with the opportunity to strengthen their ties worldwide but also gives staff and students the opportunity to gain in international perspective. Thus improving internationalization at home and last but not least helping to reach the SDGs proclaimed by the UN. Taking the example of the Chair of Metal Forming and Processing at the Institute of Metallurgy at Clausthal University of Technology, I would like to give an example of a success story in global engagement.
3:35 PM Break
3:55 PM Keynote
Development of Sandwich Materials from Automotive to Biomedical Applications: Adele Carrado1; 1University of Strasbourg - IUT LP / IPCMS - CNRS
Multifunctionality and the demand for improved material properties make it necessary to leave the mono-material approach and combine them to realize composite structures, such as combinations of metals with polymers. This presentation provides an overview of metal-polymer-metal sandwiches and their applications, from automotive to biomedical. These sandwiches are designed for their mechanical and thermal properties, workability, etc. A brief history of sandwiches - developed at IMET TU Clausthal - used in the automotive and biomedical sectors is presented. This presentation emphasizes the great contribution that Professor Palkowski has made and is still making in this field. Palkowski is a world expert in this field.
4:35 PM Invited
Towards the Biomedical Applicability of Sandwich Materials Processed by Incremental Sheet Forming: Mohamed Harhash1; Heinz Palkowski1; 1Clausthal University of Technology (TU Clausthal)
Sheet-like metal/polymer/metal sandwich composites (MPM) have proven their potential for aerospace and automotive applications due to their lightweight potential and improved mechanical properties. Moreover, their application in biomedical fields is promising thanks to the arbitrary customization of their mechanical properties improving the comfort criteria with human bones in case of e.g. cranial reconstruction. Therefore, the main goal is to process highly individualized parts of such sandwich sheets via the die-less incremental sheet forming process delivering 3D complex shaped parts in a cost-efficient way. In this study, a basic understanding of the forming behavior and failure mechanisms of formable MPM-sheets at room temperature is achieved by simple ISF-process conditions experimentally and numerically. Accordingly, necessary characterization experiments for materials and interface modeling are accomplished. For the first experimental runs, steel based MPMs are considered. The achieved knowledge can be then transferred to MPMs composed of biocompatible constituents in the next research activities.
5:05 PM Invited
Thermal Stability and Residual Stresses in Nanolamellar CVD TiAlN Coatings Investigated by In Situ Synchrotron Diffraction: Kristine Bakken1; Olof Bäcke1; Mats Halvarsson1; Magnus Hörnqvist Colliander1; 1Chalmers University of Technology
Thin wear resistant coatings are essential for increasing the service life of tools for metal cutting. Cubic TixAl1-xN has long been an important system, but is hampered by the upper limit of the Al content (<0.7) imposed by the physical vapor deposition (PVD) process, where higher concentration results in formation of detrimental hexagonal AlN phase. Recently, novel low pressure chemical vapor deposition (CVD) techniques have been used to synthesize fully cubic coatings with Al as high as 0.95. These coatings present very interesting nanolamellar structures, with alternating Ti-rich and Al-rich layers of thicknesses in the order of a few to a few tens of nm. The current knowledge about the thermal stability of these coatings is very limited. Here we have used in situ high energy synchrotron X-ray diffraction to perform detailed investigations of the phase stability and temperature dependent residual stresses.
5:25 PM Concluding Comments