Symposium B focuses on surface engineering and materials science of hard and protective coatings. We are interested in the fundamentals of deposition processes, properties of new single, multilayer, nanocomposite and nanostructured hard coatings, process-structure-property relationships, substrate effects, modeling, and industrial practices.
B1. PVD Coatings and Technologies
This session solicits contributions (except those covered by the topical sessions) related to sputter-deposition, cathodic and anodic arc discharges, laser ablation, electron beam (with and without additional ionization) and combinations of PVD coating methods. We welcome contributions on in-situ measurements, process modeling, plasma transport in electromagnetic fields, and multi-phase, gradient and nanostructured coatings, as well as hard and superhard coatings. Applications include but are not limited to wear-protective coatings for components and tools, low-friction thin films, high-temperature wear-, erosion-, and corrosion-resistant coatings, optical layers, biomaterials, decorative coatings, and materials for energy applications.
B1. Invited Speakers:
- Thomas Arnold, Leibniz Institute of Surface Engineering (IOM), Germany, “Ultra-Precision Optical Surface Processing by Reactive Atmospheric Plasmas and Low Energy Ion Beams”
- Andrey Voevodin, University of North Texas, USA, “Hybrid Technologies for Wear Protective Coatings With Adaptive Behavior”
B2. CVD Coatings and Technologies
This session solicits experts in thin films deposition techniques, involving chemical vapor deposition, for the growth of protective coatings and multifunctional, smart, or hard materials. This session will address (1) various techniques including Atmospheric Pressure CVD, LPCVD, MOCVD, ALD, HVPE, Pulsed CVD, and their plasma-assisted counterparts, PECVD and PEALD; (2) novel molecular CVD precursors or original delivery systems for low vapor pressure/difficult precursors (DLI, pressure pulse, direct halogenation) ; (3) properties of materials and structures grown by these deposition techniques; and (4) CVD modeling techniques from molecular to equipment scale.
B2. Invited Speakers:
- Takayuki Ohta, Meijo University, Japan, “Deposition of Hard Carbon Films by High Power Pulse Magnetron Sputtering”
B3. Deposition Technologies and Applications for Diamond-like Coatings
This session solicits contributions that address the application of carbon-based coatings industry. We want to span the whole range from applications for DLC or ta-C on engineering components as well as coatings employed in devices and displays or electrochemical applications like fuel cells and electrolytic applications. Deposition technologies include plasma-based methods CVD, PVD, and their combination, arc, ion-beam, and laser-assisted deposition and HIPIMS as well as dip coating, sol-gel, and other transfer techniques. This session includes fundamentals and development of interfaces between substrate and DLC to improve adhesion, supporting layers, and hybrids with hard coatings, industrial practices, scalability, and cost estimates.
B3. Invited Speaker:
- Marcus Morstein, Hightech Zentrum Aargau AG, Switzerland, “Carbon-Based Coatings for Forming and Protection of Stainless Steel Sheets”
B4. Properties and Characterization of Hard Coatings and Surfaces
This session solicits contributions (except those covered by the topical sessions) on the relationships among composition, microstructure, and properties of hard coatings and surfaces, the effect of deposition parameters on these properties, as well as the development and use of novel characterization techniques.
B4. Invited Speakers:
- Vinzenz Guski, IMWF, University of Stuttgart, Germany, “Microstructural Simulations on Thin Films”
- Johan Nyman, Linköping University, Sweden, “Cathodic Arc Deposition of Chromium Based Coatings”
- F.Y. Ouyang, National Tsing Hua University, Taiwan, “Thermal Stability of Nanotwinned Metallic Thin Films”
- Da-Yung Wang, MingDao University, Taiwan, “Design and Characterization of Carbon-Based Coatings for Machining of Composite Materials”
B5. Hard and Multifunctional Nanostructured Coatings
This session solicits contributions related to nanostructured and nanocomposite coatings as well as multi-component and layered films with morphological designs adapting the microstructure down to the nanoscale level. The desired functionalities range from structural properties such as high hardness, toughness, or thermal stability to chemical inertness up to adaptive mechanisms like controlled friction as well as sensing properties. The session not only emphasizes the design and synthesis of novel coating concepts but also their characterization, modeling, and applications. In addition, combined functionalities such as in-situ sensing of structural coatings – just to mention one possibility – are highly appreciated to explore the next level of multifunctional and smart coatings.
B5. Invited Speakers:
- Marcus Hans, RWTH Aachen, Germany, “Thermal Decomposition of Hard Coatings – Insights from Nanometer-Scale Characterization”
- Efstathios Meletis, University of Texas at Arlington, USA, “Design of Coatings for Harsh Environments”
B6. Coating Design and Architectures
This session aims at bringing together computational and theoretical researchers and experimentalists in knowledge-based design and architectures of functional thin films and hard coatings. We are interested in both experimental and computational studies of knowledge-based chemical and structural design approaches. Studies on growth kinetics, prediction and explanation of structure and properties of surfaces, interfaces, and thin-film material systems as well as the thermodynamic processes involved are particularly welcome.
B6. Invited Speakers:
- Jia-Hong Huang, National Tsing Hua University, Taiwan , “Effect of Coating Architecture on Stress Relief Mechanism of TiZrN Coatings on Si Substrate”
- Mikula Marian, Comenius University, Slovakia, “Structural Design of Diboride Thin Films”
B7. Plasma Surface Interactions, Diagnostics and Growth Processes
Plasma processes are at the heart of inventive deposition strategies for innovative coating materials and nanostructures with enhanced properties and/or multiple functionalities. Diagnostics based on plasma composition and in surface characterization are essential to understand the physical proprieties of the coatings and mechanisms of the plasma growth processes and plasma-surface interaction. The objective of this session is to show how such correlations could establish processing-structure-property relationships and improve the design of materials. Talks featuring new plasma diagnostic techniques, characterization of plasmas in novel processes, correlation of intrinsic plasma properties to the structure and composition of materials and deployment of artificial intelligence/machine learning/big data methods to reveal the mechanisms of plasma generation, film growth and process quality assurance are welcome.
B7. Invited Speakers:
- Ali Mesbah, University of California, Berkeley, USA, “The Promise of Data-Driven Methods for Diagnostics and Control of Plasma Interactions with Surfaces”
B8. HiPIMS, Pulsed Plasmas and Energetic Deposition
The energy carried to the thin film during deposition is crucial in reducing the growth temperature and improving the properties of thin film materials. Higher plasma density leads to enhanced ionization of the film precursors and offers better deposition process control. This results in improved coating characteristics, valuable e.g. optical, wear resistant, or photovoltaic applications. This session solicits contributions from academia as well as the industry which cover both the basic physics and the applications of energetic deposition. Topics of interest include but are not limited to: plasma generation and discharge physics, simulation and modelling, reactive processes and process control, mechanisms of film growth, surface and interface engineering, industrial applications and production, upscaling and associated equipment.
B8. Invited Speakers:
- James W. Bradley, University of Liverpool, UK, “Diagnosing Bipolar HiPIMS Plasmas Using Laser Thomson Scattering”
- Bocong Zheng, Fraunhofer USA Center Midwest, USA, “Kinetic Investigation of Electron Heating in HiPIMS Discharges”