Seal of the University of Rostock Logo of Marie Curie Fellowships for Early Stage Training (EST),
         Logo of ADVATEC
 
 

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
EDX mapping of Spark Plasma Sintered AlCuFe

 
Fellow Photo of Carmen Mihoc  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)
Project Images

 
acf_80h = SEM picture of AlCuFe after 80h high energy ball milling
 
High-energy ball-milling: planetary ball-mill (RETSCH PM 400) High-energy ball-milling: planetary ball-mill (RETSCH PM 400)

 

 
AlCuFe80_900C = XRD spectra of AlCuFe after heating
Project Goal synthesis and characterization of quasicrystal aluminium-based alloys and technological applications of alumium-based composites
Description 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.
Papers in international peer reviewed conferences,
  • 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
Participation in workshops, summer schools, study visits and tutorials,
 
Reports
  • 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
Reports
  • Report for the European Marie Curie Commission. November 2007.
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