NDTnet - March 2000,
Vol.5 No.3
Cordis Database
RAPIDUS* brought us the following updates or new entries which match our search profile
*
RAPIDUS is a new CORDIS Database Service . Registered CORDIS users can now save search profiles and receive automatic
updates by Email of search results that match search criteria. You can register free
for this service. CORDIS is the European Community R&D Information Service.
CORDIS Database: PARTNERS
DCN (Direction des constructions navales)
Naval structures and materials research Centre
Record Control Number : 51887
Quality Validation Date : 2000-01-06
Update Date : 2000-01-27
Name : DCN (Direction des constructions navales)
Department : CESMAN
Address : DCN INDRET
City : LA MONTAGNE
PostCode : 44620
Country : FRANCE
Type : Other
Number of Employees : > 500
Subject Index Codes : Industrial Manufacture
Subject Details : The main activity of the DCN is to supply the French Navy with the
ships, equipments and services that it needs.The CESMAN acts as a
service provider in analysis, assistance and expertise of the
materials and structures going into the design and fitting of ships,
together with the inspection procedures.
Collaboration
Title : Naval structures and materials research Centre
Type Details : - Applied research, physical, chemical and mechanical
characterization of metallic materials, polymer matrix composites
and organic materials.- Development and perfecting of testing
techniques,- Development of non destructive testing methods-
Development of welding technics (electron beam, A-TIG, etc...) -
Service failure investigations- On site interventions for
inspections and expertise
Programme : GROWTH
Validity Date : 2001-12-31
Target Partner
Country : EUROPEAN UNION
Contact Person
Name : GOUEZ, Jean (Mr)
Position : Head of the CESMAN
Organisation : DCN (Direction des constructions navales)
Department : CESMAN
Address : DCN INDRET
City : LA MONTAGNE
Country : FRANCE
PostCode : 44620
Telephone : 33240847703
Fax : 33240847994
Electronic Mail : cesman.dcn-indret@wanadoo.fr
Workprogramme area(s)/key action(s)
(GROWTH 1.1.3.) Competitive and Sustainable Growth
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Université de Liège
Record Control Number : 52018
Quality Validation Date : 2000-01-19
Update Date : 2000-01-22
Name : Université de Liège
Department : Centre Spatial de Liege
Address : avenue du Pré-Aily
City : Angleur
PostCode : 4031
Country : BELGIUM
Type : Research, Education
Number of Employees : 50 - 249
Subject Index Codes : Other Technology
Subject Details : The Centre Spatial de Liège (CSL) is a quasi-autonomous unit of
the University of Liège, devoted mainly to testing of space optical
equipment. Various competencies have been developed in related
fields such as Non Destructive Control (NDT) , photometry,
spectrosocopy, vacuum freeze drying, defect control,cryogeny,
metrology, ...
Turnover : 8 million ECU
Collaboration
Type Details : Expertise in (among others) : Non Destructive Control (NDT) by
optical methods, metrology (2D and 3D) , interferometry,
Programme : GROWTH
Target Partner
Expertise : Consortium or industry needing a partner for submitting a proposal
Country : EUROPEAN UNION
Contact Person
Name : HENRIST, Marc (Dr)
Position : head of quality control
Organisation : Université de Liège
Department : Centre Spatial de Liege
Address : avenue du Pré-Aily
City : Angleur
Country : BELGIUM
PostCode : 4031
Telephone : +32-4-3676668
Fax : +32-4-3675613
Electronic Mail : marc.henrist@ulg.ac.be
Workprogramme area(s)/key action(s)
(GROWTH 1.1.3.) Competitive and Sustainable Growth
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DRB Materials Technology
Remote non-destructive metallurgical creep crack detection using laser technology
Record Control Number : 51991
Quality Validation Date : 2000-01-14
Update Date : 2000-01-27
Name : DRB Materials Technology
Address : IRC House, The Square, Pennington
City : Lymington
PostCode : SO41 8DH
Region : SOUTH EAST (UK)
HAMPSHIRE, ISLE OF WIGHT
Hampshire
Country : UNITED KINGDOM
Type : Consultancy
Number of Employees : 10 - 49
Subject Index Codes : Materials Technology, Measurement Methods, Other Technology
Collaboration
Title : Remote non-destructive metallurgical creep crack detection using
laser technology.
Type Details : Many industries operate their processing plant at high temperatures.
If the operating temperature exceeds 0.4Tm then the phenomenon of
creep becomes a significant restriction on the longevity, safety
and reliability of the equipment. Welds in pipes (particularly
stainless steel) which suffers embrittlement around the
heat-affected zone are very susceptible to creep-failure. The
present method of dealing with this is to shut down the plant and
carry out physical inspection (for example using radiography) and
repair (for example using welding) . This is very costly and is
also not able to give an assurance that cracks are always detected.
There is thus a demonstratable need for on-stream non-destructive
testing and, since the equipment operates at high temperatures,
this must also be remotely operated because access would be limited.
In recent years, development of laser systems has reached the
stage at which it will be possible to use the energy of a laser to
excite a metallic structure. The amplitude or the vibration can be
measured and analysed by a delayed second beam split from the
original exciting laser. Since an uncracked metal structure such
as a pipe will have a characteristic resonant vibration, this can
form the the reference signal. As metals suffer creep cracking at
elevated temperatures, the resonant frequency will vary. This will
therefore permit conntinuous on-stream monitoring of the crack
propagation remotely; with the first laser being the "hammer" and
the split second laser being the "ears". The project therefore
proposes to develop a laser-based system and associated signal
analysis, mathematical and optical techniques in order to detect
remotely the extent of creep crack propagation in metallic
components operating at high temperatures.
Programme : GROWTH
Research Interest : Technological sciences, Instrumentation technology, Material
technology, Systems engineering, computer technology, Composite materials
Partners Aquired : I.F.A.M. Pisa, Italy, Uninova, Portugal, B.B.T. Denmark
Validity Date : 2001-01-14
Target Partner
Expertise : Industrial or research company with a need to extent their
technology base in fields of materials science, engineering,
petrochemicals, oil, leisure, medical, marine, offshore etc.
Country : EFTA, EUROPEAN UNION
Contact Person
Name : BATES, Derek Roy (Mr)
Organisation : DRB Materials Technology
Address : IRC House, The Square, Pennington
City : Lymington
Region : SOUTH EAST (UK)
HAMPSHIRE, ISLE OF WIGHT
Hampshire
Country : UNITED KINGDOM
PostCode : SO41 8DH
Telephone : +44-1590-676622
Fax : +44-1590-675599
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CORDIS Database:PUBLICATIONS
Ultrasonic and Resistive Hydrogen sensors for Inert Gas/Water Vapour Atmospheres
Record Control Number : 200011821
Quality Validation Date : 2000-02-25
Update Date : 2000-02-25
Title in English: Ultrasonic and Resistive Hydrogen sensors for Inert Gas/Water
Vapour Atmospheres
Author(s) : ANSELHI H;HUHTIEMI I
Paul Scherrer Institute, Villigen (CH)
Bibliographic Reference : Article: Measurement Science and Technology (1999)
Abstract : Hydrogen concentration measurements were developed for a series of
experiments in which a molten oxide is mixed with water to study
vapour explosion phenomena. The gas mixture to be analyzed
consisted of hydrogen with water vapour and either helium or argon.
Two types of sensor have been developed for these tests. The first
is an ultrasonic sensor, which detects variations in the acoustic
velocity within a 0.4mm-diameter palladium wire. The sensor
measures hydrogen concentrations between 0.1-100%, at atmospheric
pressure, over an operating range of 200-400 degrees Celsius. The
response time is ~30 s at 180 degrees Celsius and 8 s at 380
degrees Celsius. The second sensor consists of a palladium coil,
constructed with 0.05 mm diameter wire that is wound on a ceramic
tube. Measurements of wire resistance were used to detect hydrogen
pressure. This sensor operates at 150-300 degrees Celsius and
measures hydrogen concentrations of 1-100%. The response time is
short, 1-2s for a temperature of 300 degrees Celsius.
Facet Codes : Miscellaneous
Availability in Languages : en
Publication Year : 1999
Publication Type : An article in a journal
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Fatigue Resistant Silicon Nitride Ceramics Due TO Anelastic Deformation and Energy Dissipation
Record Control Number : 200011833
Quality Validation Date : 2000-02-25
Update Date : 2000-02-25
Title in English: Fatigue Resistant Silicon Nitride Ceramics Due TO Anelastic
Deformation and Energy Dissipation
Author(s) : REUBBEN G
MTM, Kulevven (BE)
DONZEL L;SCHALLER R
EPFL, Lausanne (CH)
STEEN M
IAM, JRC-Geel (BE)
VAN HUMBECK J;VAN DER BIEST O
Kulevven (BE)
Bibliographic Reference : Paper presented: International conference on Internal Friction and
Ultrasonic Attenuation in Solids, Buenos Aires (AR) , 19-23rd July
(1999) ; Available free of charge from the Public Relations and
Publications Unit, Ispra (IT)
Abstract : To investigate the link between internal friction and fatigue
resistance of sintered silicon nitride at elevated temperatures,
uniaxial tension-compression and impulse excitation tests were
performed and the results compared with those of previously
reported torsion pendulum tests. AN internal friction peak
associated with the glass transition of amorphous intergranular
phases is observed at low stress-amplitudes. This peak occurs near
the operating temperature of combustion engine valves and thus is
considered to be one of the reasons for earlier reported enhanced
vibration fatigue resistance and acoustic quality of silicon
nitride valves. High-amplitude internal friction measurements have
revealed a new and much larger internal friction effect than
previously could be expected from low-amplitude test results.
Rheological analysis has revealed that the underlying deformation
is truly anelastic. Within the investigated stress-amplitude-range
the damping is shown to be linearly dependent on the
stress-amplitude. As a consequence, energy dissipation in a
cyclically loaded component will increase locally at stress
concentrations such as crack tips. This inevitably results in an
increased crack propagation resistance. Thus, the anelastic
deformation behaviour explains earlier observations of a positive
fatigue effect in sintered silicon nitride at high temperatures.
Facet Codes : General and theoretical physics
Availability in Languages : en
Publication Year : 1999
Publication Type : An oral conference paper
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