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centro tecnológico da cerâmica e do vidro | coimbra | portugal | 1 |02‐12‐2015
Hélio Jorge e Luc Hennetier
CTCV ‐Materiais e Produtos Avançados
CTCV ‐ Advanced Materials and Products
O CTCV na inovação em materiais e tecnologias na indústria cerâmica portuguesaCTCV in the innovation in materials and technologies for the portuguese ceramic industry
National funded projects under QREN SI‐I&DT Co‐Promoção 2008‐2015
MATERIALS
i-Tiles
7 techn. & instit.
partners
12 projects
17 companies
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AcronymDevelopmenttipology
SubjectCompanypartners
Technology andinstitutional partners
TechnologyDigital inkjet decoration in non-flat ceramic products
Matcerâmica, Kerajet
-
Technology Automated product inspectionEnermeter, Costa Verde
-
Multifunctional products
Electronicaly interative touch ceramicsurface
Revigrés,Intellihouse e IDTEC
-
Multifunctional products
Selfcleaning and air purification byphotocatalytic ceramic surfaces
Recer Univ. Aveiro
TechnologyShaping of cemented carbides bypowder injection moulding
Durit e Moldit -
Technology Microwave-assisted firing process Costa VerdeUniv. AveiroLNEG
Multifunctional products
Electricity generation by photovoltaicceramic surface
Revigrés, Dominó e Coelho da Silva
Univ. Nova de Lisboa,Univ. Minho, LNEG, de Viris, ADENE
National funded projects under QREN SI‐I&DT Co‐Promoção 2008‐2015
Smart Thermal Ceramic Roof Tiles
MOTIVATION:
• energy efficiency in buildings is a priority
• roofing area is significant in building envelope & 25% of heat
exchanges between indoor and outdoor environment is by the
roof
• “cool roofs” are beginning to be demanded
• a 2012 portuguese ceramic tile study had evidenced that
different roof tile colour can have a major influence in the
building energy consumption
OBJECTIVES:
• development of chromogenic tiles that changes solar radiance
reflectance according to the environment conditions
• change of optical properties with temperature »»
thermochromic materials
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Smart Thermal Ceramic Tiles
TECHNICAL DEVELOPMENTS:
• optimisation of a synthesis method for the production of
nanostructured thermo chromic VO2 powder
• testing of powder deposition and adhesion on glazed
tiles
• prototype tiles production
• thermal evaluation of roof prototypes and computer
simulation
500nm
Smart Thermal Ceramic Tiles
RESULTS:
• functional coated ceramic tile that changes its reflectance
index in hot days
• increases solar radiation reflectance accordingt to the phase
change of coating material
• the reflectance change is in the higher energy range of the
solar spectrum (IR)
solar radiation spectrum at the earth surface reflectance index vs light wave length of the –Tiles for
different temperatures
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Ceramic ware for induction cooking
MOTIVATION:
• new products into the market: multiple heating system ceramic
products (MW, gas flame, Induction, IR)
• market share is increasing for induction cookware
OBJECTIVES:
• product and manufacturing process development of stoneware
articles for induction cooktops, focused in:
• 100% ferromagnetic ceramic
• ferromagnetic / conductive layer
TECHNICAL DEVELOPMENTS:
• ROUTE 1
• selection of ferromagnetic ceramic body incorporation
• optimization of the ferromagnetic bodies
• ROUTE 2
• silver layer application optimization (density, layer thickness, layer
design pattern
• prototype heat testing (heating rate, heat homogeneity)
• optimization of thermal fatigue resistance of the ceramic body
• »» undergoing R&D »»»»
Ceramic ware for induction cooking
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RESULTS:
• functional prototype available
• stoneware product for induction heating cooktops based on
metallic layer technology
• an innovation in the company developing product list
Ceramic ware for induction cooking
Rapid manufacturing of porcelain tableware by 3D printing
MOTIVATION:
• 3D printing is the next industrial revolution
• technical ceramics 3D printing is going into the market
• advantages of 3D printing:
• production of short series of complex shaped parts
• freedom of design
• targeted on high added value products
• reduce development times
OBJECTIVES:
• development of 3D printing method for the manufacturing of
porcelain tableware
ceramaker.com
ge.com Schunk Carbon
Viridis
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TECHNICAL DEVELOPMENTS:
• technology platform: powder bed inkjet printer
• reverse engineering of the printing process of Al2O3
based powder
• porcelain body powder development
• binder formulation development
• sintering engineering
• »»»» undergoing R&D »»»»
Rapid manufacturing of porcelain tableware by 3D printing
High metalmarking resistant ceramic tableware
MOTIVATION:
• metalmarking is a key issue that hinders the tableware product
lifetime
• demanding of high quality specification of costumers
• there is no mature technology available to solve the
metalmaking issue
OBJECTIVES:
• development of a technical solution based on new glazing
systems for the improvement of the metalmarking resistance of
stoneware and earthenware tableware
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TECHNICAL DEVELOPMENTS:
• methological analysis and development of a metalmarking evaluation method
• phenomenogical study of metalmarking related to the ceramic body, glaze
and knife characteristics
• development of new glaze formulations
• industrial production testing and product evaluation
High metalmarking resistant ceramic tableware
RESULTS:
• increase of technical knowledge about the metalmarking
phenomena
• identification of the critical parameters that influences MM effect
• new glaze formulations developed for the higher MM resistance –
PATENT PENDING
High metalmarking resistant ceramic tableware
MET
AL
MA
RK
ING
RES
ISTA
NC
E SC
OR
E
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Energy savings tiles with PCM technology
MOTIVATION:
• energy efficiency in buildings is a priority and materials
competition are an opportunity
• a new generation of materials are coming into building
materials – based on PCM Phase Change Materials – but not yet
in ceramics
OBJECTIVES:
• development of ceramic tiles with improved thermal
characteristics using PCM materials
Dupont
Maxit
Knauf H+H
?CINCA
PCM:
• heat storing materials
• programmed to phase changing at a certain temperature
• absorbe heat from the environment, by melting
• release heat until to solidify
• the energy storage capacity is the triple from water and siz times from
rock
Energy savings tiles with PCM technology
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PCM Promising Applications:
PCM product application according to the functionality
Energy savings tiles with PCM technology
inner
temperature
regulation
thermal insulation
heat storage
(with radiant heating floor)
DEVELOPMENTS:
• development of the production process of stoneware with a porosity
layer
• development of the processo of incorporation of PCM and
encapsulation (stoneware and eathernware)
• acustic and thermal properties evaluation
• lab testing of prototypes
Energy savings tiles with PCM technology
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Energy savings tiles with PCM technology
Azulejo PCM ThermoCer PCM ThermoCer
Description PCM integrated earthenware tile PCM integrated double-layerstoneware tile
Porous layered stoneware tile
Application Wall
Interior
Wall and floor
Interior
Wall and floor
Interior and exterior
Key characterisctics PCM technology
Higher thermal mass
Isothermal heat absortion andrelease
PCM technology
Higher thermal mass
Isothermal heat absortion andrelease
Controlled porosity without lostof structural functionality
Higher heat conductanceresistance
Benefits Support of the heating/coolingsystems to stabilise the building innertempeature, and reduction of energyconsumption.
Support of the heating/coolingsystems to stabilise the buildinginner tempeature, and reduction ofenergy consumption.
Improvement of thermal insulation offloor/wall and redution of energyconsumption.
areas for new developments
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Areas with innovation potential
Low Energy Incorporation
/
Environmet Impact
Nanomaterials reactivity• Nanoestrutures forming• Reduction of phase transformation and sinteringtemperatures• Preservation and reinforcement of mechanicalproperties
New processo for body preparation andshaping• Dry route•Materials use reduction• Isostatic pressing for tridimensional geometries
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Products
and
Multifunctional Products
Surface FunctionalitiesBio ActivityEnvironm. and air pollution controlPhoto sensitivityThermal sensitivityElectro sensitivityNano Materiais
Smart MaterialsThermal and acustic insulationThermal energy storageEmbodied electronicsSensorization
Multi‐material structures
Composite productsWeight and thickness reduction
Areas with innovation potential
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