Symposium CB
Non Conventional and Emerging Routes to Advanced Ceramics

Emanuel IONESCU / Ralf RIEDEL, Technical University Darmstadt, Germany
Hiroya ABE, Osaka University, Japan
James H. ADAIR, Penn State University, USA
Dinesh AGRAWAL, Penn State University, USA
Umberto ANSELMI-TAMBURINI, University of Pavia, Italy
Florence BABONNEAU, Chimie de la Matière Condensée, Paris, France
Joachim BILL, University of Stuttgart, Germany
Etienne DUGUET, University of Bordeaux, France
Thomas GRAULE, EMPA, Switzerland
Peter GREIL, University of Erlangen-Nuernberg, Germany
Aleksander GURLO, TU Berlin, Germany
Masashi HASEGAWA, Nagoya University, Japan
Shmuel HAYUN, Ben-Gurion University of the Negev, Israel
Nicola HUESING, University of Salzburg, Austria
Jeongho KIM, University of Connecticut, USA
Lisa KLEIN, Rutgers University, USA
Waltraud M. KRIVEN, University of Illinois at Urbana-Champaign, USA
Philippe MIELE, Ecole Nat. Sup. de Chimie de Montpellier, France
Guenter MOTZ, University of Bayreuth, Germany
Eugene A. OLEVSKY, San Diego State University, USA
Kurosch REZWAN, University of Bremen, Germany
Clement SANCHEZ, Université Pierre et Marie Curie, France
Gian Domenico SORARU', University of Trento, Italy
Yoshiyuki SUGAHARA, Waseda University, Japan
Omer VAN DER BIEST, KU Leuven, Belgium
Zhaoju YU, Xiamen University, China
Di ZHANG, Shanghai JiaoTong University, China
Sophie CASSAIGNON, Sorbonne University - UPMC, France
Olivier DURUPTHY, Sorbonne University - UPMC, France
Gideon GRADER, Technion, Israel
Emanuel IONESCU, Darmstadt University of Technology, Germany
Xingang LUAN, Northwestern Polytechnical University, China
Alexandre MAITRE, University of Limoges, France
Ken NIWA, Nagoya University, Japan
David PORTEHAULT, Université Pierre et Marie Curie, France
Oscar Jaime RESTREPO BAENA, Universidad Nacional de Colombia, Colombia
Kirill RYBAKOV, Institute of Applied Physics, RAS, Russia
Joerg J. SCHNEIDER, Darmstadt University of Technology, Germany
Vincenzo M. SGLAVO, University of Trento, Italy
Yoshiyuki SUGAHARA, Waseda University, Japan
Takashi TANIGUCHI, NIMS, Japan
Yoshimi WATANABE, Nagoya Institute of Technology, Japan
Shu YIN, Tohoku University, Japan
Xiaowei YIN, Northwestern Polytechnical University, China
This symposium will cover recent progress and emerging novel approaches in a number of non conventional or novel processing techniques capable of embodying ceramic materials with unique properties not possible or difficult to be achieved with conventional methods and/or provide simplified and/or environmentally benign and energy saving “green” processing routes. Covered will be dense or porous materials, functional nanoparticles and hierarchical nanostructures, fibers, thin and thick films, and laminated, composite,  graded and hybrid structures. Mechanisms and kinetics of processes, new directions and challenges for the design at atomic/molecular scale of complex high performing, micro-, meso- and macro-structures with optimized properties for a range of ongoing and potential applications will be enlightened as well as advances on the state-of-the-art computation applied to the design of materials and processing, and novel characterization and imaging tools..
Sessions will encompass solution based processing routes, non conventional and novel forming and sintering techniques with particular emphasis on electric field- and pressure-assisted techniques and microwave processing, latest advances in polymer derived ceramics and in layered, functionally graded materials and hybrid structures. A session will offer place to contributions highlighting general issues related to energy, environmental and material saving aspects for sustainability. Finally, three Focused Sessions on “Bio-inspired and Bio-enabled Processing”, “Additive Manufacturing” and ”SHS Ceramics” will substantiate the Symposium programme.
Session Topics

CB-1 Solution-based processing

Solution-based processing is an attractive and rapidly growing “green” fabrication area for a variety of high-quality functional nanoparticles, hierarchical nanostructures, thin films, fibres, bulk and porous finely structured materials and hybris using relatively low temperatures.
A very effective control of stoichiometry, microstructure and morphology and an extreme flexibility in terms of materials and end-use architectures are among the several advantages of solution-based processing, which includes techniques such as sol-gel, hydrothermal and solvothermal processing, co-precipitation, spin-coating, spray pyrolysis, electrolytic deposition, etc.
Suggested session topics:
  • Solution-based processing of functional nanostructures:
    thin film devices, coatings, membranes
    bulk porous and mesoporous materials
    nanocomposite and hybrid structures
  • Functional characterisation in view of application:
    electronic, dielectric, magnetic, optical
    chemical, electrochemical

CB-2 Polymer derived ceramics

Recent progress in the understanding of the structure at the nanoscale and in the thermodynamics of the complex organic-inorganic systems from which polymer-derived ceramics take origin, coupled with the availability of refined and novel fabrication techniques, enable a more precise control of the structure of the resulting materials and novel powerful functionalities to be exploited in a broad range of applications from e.g. energy and environment to aerospace and health-care.
This session will address recent developments in PDCs such as: advanced polymer-to-ceramics conversion methods, structure control and characterisation, thermodynamic aspects and modelling, novel fabrication processes and PDCs device components.
Suggested session topics:
  • Design and synthesis of novel preceramic polymers
  • Conversion mechanisms to oxide and non-oxide ceramics
  • In situ formation
  • Advanced and innovative fabrication techniques for precursor-derived monoliths, fibers, metal-ceramics and ceramic-ceramic composites, hybrid materials, coatings, membranes, foams
  • Nanostructure characterisation
  • Structural and functional properties
  • Modelling of materials, processes and functions
  • Engineering and industrial applications

CB-3 Microwave processing

In microwave processing the combination of specific features such as volumetric heating, ultra-rapid heating, temperature/time profiles not readily available with conventional techniques as well as non thermal microwave effects that enhance mass transport, may result in faster reaction kinetics and densification rates, decreased sintering temperatures and finer and better controlled microstructures. The technique is being applied to an increasing number of systems paralleling the progress gained in a more fundamental and quantitative understanding of the mechanisms of microwave-materials interactions, in the efficient control of the process and in the advances in manufacturing techniques and equipment.
Suggested session topics:
  • Advances in the understanding of microwave-materials interaction
  • Dielectric properties measurement
  • Temperature control during microwave processing, non contact temperature sensing systems
  • Microwave assisted synthesis, deposition processes, melting, joining, surface sealing
  • Microwave sintering of oxide and non-oxide ceramics, and composites
  • New theories, and modelling of materials and processes
  • Structural and functional characterisation of materials
  • Advances in production techniques (hybrid heating, sintering in inert atmosphere..)
  • Scale-up of microwave processing and application

CB-4 Electrical field and pressure assisted synthesis and sintering

Spark Plasma Sintering (SPS/FAST/PECS) consists of directly appliying pulsed dc currents and uniaxial pressure to a powdered material in a die with heating rates typically from 100 °C/min up to 1,500 °C/min. The process results in fully dense, fine grained bodies in very short holding time and at considerably lower temperatures (hundreds Celsius degrees) compared to the more conventional sintering and hot pressing techniques. Owing to its peculiar features, SPS is gaining increased interest for the production of functional nanoceramics from high purity powders, composites, cermets, coatings, joints. Being SPS a non-equilibrium process, materials containing non-equilibrium phases or materials combining different phases that would not normally coexist may be obtained.
In Flash Sintering (FS), a technique recently tentatively translated from metals to the field of ceramics, a direct current field applied by a pair of electrodes to a green ceramic specimen results in a nearly instantaneous (few seconds) densification when the field and the temperature exceed  threshold values. Exceptional high densification rates and low densification temperatures may be obtained with significant time and energy saving, that can be further reduced by application of stress. The underlying fundamental mechanisms of charge transport, chemical diffusion and the pulse nature of Joule heating effective on the transient phenomena active in flash sintering, and how powder grain size and stoichiometry affect the process appear until now scarcely debated and poorly understood
Suggested session topics
  • Fundamental mechanisms and control of SPS and FS
  • Modeling and simulation of electrical field and flash  activated densification
  • Consolidation phenomena, phase constitution
  • Property evaluation
  • SPS hybrid techniques

CB-5 Functionally Graded Materials

Functionally graded materials embody continuous spatial variations in composition and microstructure purposely designed  to tailor their mechanical, thermal, electrical, optical and biological response to the needs of the specific application.
Various approaches based on e.g. particulate processing, layer processing, energy beams, diffusion processes, additive manufacturing etc are used to obtain functionally graded materials providing them with passive, active and multifunctional capabilities suitable for a wide range of civil, industrial, automotive, energy, aerospace and medical applications.
This Session will discuss aspect related to design, processing and characterization of the wide range of FGMs including their performance, reliability and life cycle during use.
Suggested Session topics
  • Design criteria synthesis and processing of FGM bulk materials, composites and hybrids
  • Functionally graded thin films and coatings
  • Characterization, structure and functionality
  • GMs for (and in) mechanical and thermomechanical applications
  • FGMs for (and in) functional and multifunctional applications
  • Modeling and simulation of materials and processes

CB-6 Other non traditional or novel routes

  • Cold sintering
  • Electrophoretic forming
  • Ultra-high Pressure Materials Synthesis
  • Shock materials synthesis and compaction
  • Microgravitational Processing
  • Directional Solidification from Eutectics
  • Fluxs synthesis
  • Controlled crystallization of Undercooled Glasses
  • Others

Focused Session CB-8
Bio-inspired and Bio-enabled Processing

Focused Session CB-9
Additive Manufacturing

Focused Session CB-10
SHS Ceramics


Cimtec 2018

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