Project 1
"Low friction thermal barrier coatings based on quasicrystalline Al alloys"
EST Project MEST-CT-2005-020986
EDX mapping of Spark Plasma Sintered AlCuFe
| Fellow |
M.Sc. Carmen Mihoc |
| Foreseen duration |
32 months and 2 weeks |
| Start Date |
15.12.2006 |
| End Date |
30.09.2009 |
| Ministering Institut |
University of Rostock, Institute of Physics,
Physics of New Materials (Prof. Burkel)
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| Project Images |
acf_80h = SEM picture of AlCuFe after 80h high energy ball milling
High-energy ball-milling: planetary ball-mill (RETSCH PM 400)
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AlCuFe80_900C = XRD spectra of AlCuFe after heating
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| Project Goal
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synthesis and characterization of quasicrystal aluminium-based alloys and
technological applications of alumium-based composites
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| Description
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Quasicrystal-forming aluminium alloys have a strong potential for several technological applications due
to their unique combination of low friction coefficients, high-temperature stability, low thermal
conductivity. Since QC materials are brittle at room temperature, their use is often restricted to thin
films and coatings. Severe chemical composition constraints make the deposition of single-phase QC films
difficult, so that new approaches are needed, especially for applications involving the coating of large
surfaces or of complex-shaped parts. The Ph.D. work will exploit the group’s expertise with the control
of nanopowder synthesis and alloy phase evolution towards the formation of single-phase quasicrystals.
Ternary Al-TM1-TM2 and Al-TM-RE (with TM: transition metal, RE: rare-earth) alloy powders will be
obtained by high-energy ball-milling. Alloy targets will be obtained using either pressure- or field-
assisted methods, and will further be used to obtain QC thin-films by laser ablation and/or magnetron
sputtering. Alternatively, nanocrystalline Al-base alloy sputtered films may be subjected to ultrafast
heating processing using conventional or microwave heating. The formation of single-phase QC phases in
coatings of various thicknesses during ultrafast heating may be fine-tuned using the information from
in-situ temperature- and time-resolved X-ray diffraction experiments and ultrafast calorimetry.
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| Papers in international peer reviewed conferences,
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- Trends in Nanotechnology (TNT2007) International Conference, 3 – 7 September 2007, San Sebastian,
Spain
Poster presentation.
Find the abstract here:
- Advanced Processing for Novel Functional Materials (APNF2008) International Conference, 23 – 25
January 2008, Dresden, Germany
Poster presentation: “Synthesis of AlCuFe/polymer composites” – 1st place
Find the abstract on page 172 .
- First International Conference on Functional Nanocoatings, 30 March – 2 April 2008, Budapest,
Hungary
Poster presentation. Find the abstract on page 149
- Junior Euromat. Lausanne (Switzerland) 14 – 18 July 2008 (paper no.99).
Due to financial difficulties I was not able to attend this conference.
- 10th Lähnwitzseminar on Calorimetry, June 8 – 13, 2008, Rostock, Germany
Poster presentation: ‘Synthesis and thermal analysis of Al-based nanopowders’
- IPP and Advatec Seminar, University of Rostock (Germany), Winter Semester 2007-2008.
Oral Presentation on the December 16th, 2007
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Participation in workshops, summer schools, study visits and tutorials,
Reports
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- Materials Days, Rostock (Germany), May 3rd to May 4th 2007
- PP and Advatec Seminar, University of Rostock (Germany), Summer Semester 2007 (Three weeks, once
a week)
- 38th IFF Spring School 2007, “Probing the Nanoworld”, 12 – 23 March 2007, Research Center Jülich,
Germany
- Marie Curie Summer School, “Knowledge Based Materials”, 19 – 29 August 2007, Estremoz, Portugal
- IPP and Advatec Seminar, University of Rostock (Germany), Winter Semester 2007-2008 (Ten weeks,
once a week)
- 404. WE-Heraeus-Seminar, “Matter in Coherent Light”, 17 – 20 March 2008, Physikzentrum Bad Honnef,
Germany
- Trends in Nanotechnology (TNT2007) International Conference, 3 – 7 September 2007, San Sebastian,
Spain
- Advanced Processing for Novel Functional Materials (APNF2008) International Conference, 23 – 25
January 2008, Dresden, Germany
- First International Conference on Functional Nanocoatings, 30 March – 2 April 2008, Budapest,
Hungary
- Junior Euromat, Lausanne (Switzerland), 14 – 18 July 2008
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| Reports
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- Report for the European Marie Curie Commission. November 2007.
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| Using Devics and Instruments |
Calorimetric reactor RC1 (Mettler-Toledo)
IR spectrometer
GC – Mass spectroscope
Particle Size Analyzer – dynamic light scattering,
CHDF (particle size distribution)
Apparatus for gel content determination
Polymer Film Testing: Adhesive tests
PLD (pulsed laser deposition system)
Spectrophotometer
Planetary ball mill
Differential scanning calorimeter (DSC)
Powder diffractometer HASYLAB
Polarized light microscopy, SEM, AFM
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