EPR measurements of ceramic cores used in the aircraft industry

• Autorzy: Stefaniuk I. , Rogalska I.. , Potera P. , Wróbel D.
• Konferencja: Electron Magnetic Resonance Forum EMR-PL (2; 16-18.05.2013; Częstochowa-Hucisko, Poland )
• Języki publikacji: EN

Abstrakty

EN

In this work the electron paramagnetic resonance (EPR) spectra of Al2O3 and ZrO2 powders were measured for different size of grains (0.074, 0.044 mm) as well as the mullites (0.07 and 0.12 mm). Also were investigated the ceramic cores. The measurements were performed at room temperature and in the temperature range from 140 up to 380 K. The main purpose of this work was to investigate the possible relationships between the EPR spectra and the size of powder grains as well as the identification of EPR spectra in view of the potential application of EPR technique as a fingerprinting method.

Słowa kluczowe

EN

Al2O3; electron paramagnetic resonance (EPR); mullite; nanopowders

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2013
• Tom: Vol. 58, No. 3
• Strony: 391--395
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Stefaniuk I.

• Institute of Physics, University of Rzeszów, 16a Rejtana Str., 35-310 Rzeszów, Poland, Tel.: [phone], Fax: [phone]

autor

Rogalska I..

• Institute of Physics, University of Rzeszów, 16a Rejtana Str., 35-310 Rzeszów, Poland, Tel.: [phone], Fax: [phone]

autor

Potera P.

• Institute of Physics, University of Rzeszów, 16a Rejtana Str., 35-310 Rzeszów, Poland, Tel.: [phone], Fax: [phone]

autor

Wróbel D.

• Institute of Physics, University of Rzeszów, 16a Rejtana Str., 35-310 Rzeszów, Poland, Tel.: [phone], Fax: [phone]

Bibliografia

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• 2. Bućko MM, Pyda W, Grabowski G, Pędzich Z (2006) Influence of the inclusion shape on thermal stresses in a cubic ZrO2-Al2O3 composite. Kompozyty 6;3:59–64 (in Polish)
• 3. Ding XQ, Bill E, Trautwein AX et al. (1993) Exchange interactions, charge delocalization, and spin relaxation in a mixed-valence di-iron complex studied by Mössbauer spectroscopy. J Chem Phys 99;9:6421–6428
• 4. Orbach R (1961) Spin-lattice relaxation in rare-earth salts. Proc R Soc London A 264:458–484
• 5. Schneider H, Komarneni S (2005) Crystal chemistry of mullite and related phases, mullite matrix composites. In: Schneider H, Komarneni S (eds) Mullite. Wiley-VCH, Weinheim, pp 1–440
• 6. Sołgała A, Kunicki A, Olszyna A (2008) Influence of alumina precursor modificator on the morphology of resultant Al2O3 nanopowder. Materiały Ceramiczne 60:262–265 (in Polish)
• 7. Stefaniuk I, Potera P, Cebulski J (2010) The EPR measurements of Al2O3 powders and mullites used in aerospace industry for cores and shapes. Curr Top Biophys 33;Suppl A:227–230
• 8. Zawada A, Boczkowska A, Ziemkowska W, Kunicki A, Pietrzykowski A, Olszyna A (2006) Preparation of Al2O3 nanoparticle for obtaining polyurethane nanocomposites. Kompozyty 6:79–84 (in Polish)
• 9. Zych Ł, Hajerko K, Bućko MM et al. (2008) The effect of nanometric zirconia particles additives on microstructure and mechanical properties of alumina bodies. Materiały Ceramiczne 60;4:254–257 (in Polish)