Additive manufacturing comprises a breadth of processes, which have significant
commercial potential, design flexibility and technical challenges. Significant
corporate and government resources have been committed to energy beam powder
bed fusion processes, while solid state AM technologies have relied on
commercial enterprises for development. Furthermore, the green part additive
technologies build on existing process technology from the powder materials and
ceramics, which enable the additive processing of non-weldable materials. These
processes include but are not limited to: binder jetting, material extrusion,
material jetting, bound filament process, nano-Inkjet printing. However, these
processes introduce other challenges such as: feedstock development, alloy
design, depowdering, powder recycling, binder design, debinding, process
modeling, microstructural development, sintering distortion, sintering support
structure design. This symposium will explore the interrelationships between
the various aspects on the process variables, properties, application
performance, economics and functionality of these non-beam additive processes.
This symposium emphasizes the advances of powder and ceramic materials in the
fundamental research, technology development, and industrial applications.
Ceramic materials science covers the science and technology of creating objects
from inorganic, non-metallic materials, and includes design, synthesis, and
fabrication of ceramics, glasses, advanced concretes, and ceramic-metal
composites. Recent years, the hybrids of ceramic and metallic materials have
received plenty of interdisciplinary inspirations and achievements in material
processes and functional applications including ionic conductors, catalysis,
energy conversion and storage, superconductors, semiconductor, filtrations,
etc.
Topics of this symposium will cover, but not limited to:
• Silicates, oxides, and non-oxide ceramics and glasses
• Synthesis, characterization, modeling, and simulation of ceramic materials
• Design and control of ceramic microstructure and properties
• Ceramic powders and processing
• Catalyst and catalyst support materials
• Fundamental understanding of ceramic materials and processes.
• Novel methods, techniques, and instruments used to characterize ceramics and
glasses.
• Bioceramics, electronic, magnetic ceramics, and applications
• Surface treatment and ceramic thin films, membranes, and coatings
• Porous ceramic materials
• Hybrid systems of ceramic, metal, and/or polymer composites
• Ceramics used for extreme environments
• Metallurgical byproducts for ceramic manufacturing
In the complex web of energy resource, production, storage, use, and
efficiency, materials play a critical role as diverse and far-reaching as
energy itself. Powder materials are part of the fundamental science and
technology underlying the production of energy, including both conventional and
renewable energy sources. Increasing demand for energy and the public’s desire
to enhance environmental quality all point to the need for better and newer
powder materials.
This symposium will cover powder material issues related to energy. It will
consider all aspects of powder material processing and property studies with
energy applications as the main objective. It includes powder synthesis,
forming (including additive manufacturing), sintering, and property evaluation.
Powder materials that can deliver outstanding harsh environment properties are
especially of high interest. The symposium covers advances in theory, modeling,
and computation while in parallel developing cutting-edge experimental
techniques and approaches to understand and characterize powder materials in
demanding conditions. Both theory and modeling and experimental efforts in
powder materials synthesis, processing, characterization, and performance
evaluation will be covered.
Additive manufacturing comprises a breadth of processes, which have significant
economic potential and technical challenges. Significant resources have been
committed to laser powder bed fusion and electron beam powder bed fusion
processes. However, additive processes which produce green components and
require consolidation processes such as sintering and HIP eliminate many short
comings such as slow build rates, residual stress and print support
structures. In addition, the green part additive technologies build on
existing process technology from the powder materials and ceramics, which
enable the additive processing of non-weldable materials. These processes
include but are not limited to: binder jetting, material extrusion, filament
process, nano-Inkjet printing and selective laser sintering. However, these
processes introduce other challenges such as: feedstock development, alloy
design, depowdering, powder recycling, binder design, debinding, full
consolidation, microstructural development, sintering distortion, sintering
support structure design. This symposium will explore the interrelationships
between the various aspects on the process variables, properties, application
performance, economics and functionality of these non-beam additive processes.
Titanium and titanium alloys are used in many demanding applications in
aerospace, automotive, biomedical and terrestrial systems because of their
excellent combination of mechanical properties and corrosion resistance.
However, titanium alloys are excluded from many applications because of their
high cost- a result of an energy intensive extraction process and complex
fabrication sequence to mill products. This is particularly true in the cost
obsessed automobile industry; albeit some in-roads are now being made even into
the family car.
In the proposed six-session symposium, papers addressing all aspects of cost
reduction in titanium and its alloys will be presented, and proceedings will be
published. The various segments of titanium technology to be covered will
include, but not be limited to: extraction (with emphasis on innovative and low
cost Kroll approaches) new lower cost alloys, creative melting including cold
hearth approaches, near net shape techniques (including powder metallurgy
variants such as near net shapes, spraying, laser forming, and casting
approaches), additive manufacturing, biomedical applications,
processing/fabrication advances such as warm drawing, extrusion, superplastic
forming (also in combination with diffusion bonding), high speed machining and
knowledge based processing with emphasis on computer aided approaches, better
process control including enhanced inspection methods, and creative designs
such as functionally graded materials, porous alloys and infiltrated concepts.
In the complex web of energy resource, production, storage, use, and
efficiency, materials play a critical role as diverse and far-reaching as
energy itself. Powder materials are part of the fundamental science and
technology underlying the production of energy, including both conventional and
renewable energy sources. Increasing demand for energy and the public’s desire
to enhance environmental quality all point to the need for better and newer
powder materials.
This symposium will cover powder material issues related to energy. It will
consider all aspects of powder material processing and property studies with
energy applications as the main objective. It includes powder synthesis,
forming (including additive manufacturing), sintering, and property evaluation.
Powder materials that can deliver outstanding harsh environment properties are
especially of high interest. The symposium covers advances in theory, modeling,
and computation while in parallel developing cutting-edge experimental
techniques and approaches to understand and characterize powder materials in
demanding conditions. Both theory and modeling and experimental efforts in
powder materials synthesis, processing, characterization, and performance
evaluation will be covered.
Topics include:
Powder material processing-structure-properties-performance relations for
energy uses
Additive powder material manufacturing related to energy
Advanced powder material analysis and in-situ characterization
Powder materials under thermal extremes at high temperatures and during thermal
cycling
Powder materials in chemical-reactive extremes related to energy
Powder materials under irradiation extremes in high-energy flux conditions
The most popular techniques for additive manufacturing (AM) of metals (e.g.
powder bed fusion or directed energy deposition) utilize high-energy beams
(e.g. lasers or electron beams) to directly fuse metal powders into bulk
components. However, while these processes are promising for specific forms of
production, they can be relatively expensive and energy-intensive. Furthermore,
these processes result in complex thermal histories, which can produce large
residual stresses along with difficult to predict and anisotropic
microstructures and mechanical properties. As an alternative, a suite of
non-fusion AM processes have been developed or are under development for the
production of metal and ceramic components. In general, these processes use AM
to produce “green” parts that are subsequently consolidated into bulk
components using powder consolidation techniques, such as debinding and
sintering. The most popular technique is binder jetting, during which a liquid
binder is selectively deposited on a powder bed via inkjet printheads. Similar
to powder injection molding, metal or ceramic powder can also be mixed with a
polymer blend to produce pellets or filament that are formed into green parts
via extrusion AM (e.g. fused filament fabrication). Additionally, powder can be
mixed with a photopolymer resin to produce green parts via AM
photopolymerization processes (e.g. stereolithography). Other techniques for
producing green parts via AM exist. Such processes address the high capital and
operating costs along with the residual stresses and microstructural concerns
of fusion-based AM. Additionally, these processes could enable the development
of mobile machines for in-field production of metal and ceramic components.
Example topics for this symposium include, but are not limited to,
binder/polymer/resin development, AM process design/modification/optimization,
debinding, sintering, and characterization of both green parts and bulk
components. Furthermore, presentations on both modeling and experimental
efforts are encouraged.
This symposium will cover recent advances in the powder-route synthesis of bulk
nanostructured materials and nanocomposites. Talks are welcome on all aspects
of the powder processing of nanostructured materials. Topics of special
interest include the following:
(1) powder synthesis methods: mechanical alloying and milling, rapid
solidification, chemistry-based techniques, emerging powder synthesis methods
(2) advanced powder forming methods: novel pressing techniques, binder jet
3Dprinting, laser/electron beam/plasma powder deposition processes, injection
molding;
(3) pressure-assisted consolidation techniques: spark plasma sintering, cold
spray deposition, hot pressing, shock-wave consolidation;
(4) pressureless densification techniques: liquid phase sintering, liquid metal
infiltration, nanophase separation sintering, microwave sintering;
(5) new and emerging powder metallurgy-based consolidation processes.
We strongly encourage talks on structural evolution during these synthesis,
forming, and densification operations.
In this proposed six-session symposium, papers addressing all aspects of powder
metallurgy of light, reactive and other non-ferrous metals and their
applications will be welcome. The following topics of the powder metallurgy of
light, reactive and other non-ferrous metals are particularly welcome: (i)
novel synthesis of powder materials; (ii) production and characterisation of
spherical powders for additive manufacturing (AM) or 3D printing, (iii) new
developments and understanding of powder consolidation (e.g. spark plasma
sintering; microwave sintering; forging, extrusion, powder injection moulding,
cold spray forming); (iv) additive manufacturing or 3D printing; (v)
functionally graded materials and novel metal-ceramic or metal-polymer
composites; (vi) novel applications of powder materials including loose
powders, porous structures and fully consolidated products; (vii) advances in
characterization of powder materials; and (viii) modelling and simulation of
all aspects of the powder metallurgy of light, reactive and other non-ferrous
metals.