Raziskave v fiziki snovi

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Presentation transcript:

Raziskave v fiziki snovi Infodan FMF Uni-Lj 9.-10. feb. 2007

KRISTALI NaCl Rošelska sol Infodan FMF Uni-Lj 9.-10. feb. 2007

KVAZIKRISTALI uklonska slika X - žarki ikozaedrični Mg-Zn-Dy dekagonalni Al-Ni-Co “prepovedane” simetrije: 5-, 8-, 10-, 12-števna os Infodan FMF Uni-Lj 9.-10. feb. 2007

KOMPLEKSNE KOVINSKE SPOJINE Bergmanova faza Mg32(Al,Zn)49 Bergmanov skupek bcc mreža Bergmanovih skupkov Infodan FMF Uni-Lj 9.-10. feb. 2007

“PAMETNI” MATERIALI električni prevodnik + toplotni izolator; trd + elastičen + anomalno majhen količnik trenja (kt ~ 0.2); skladiščenje velikih količin vodika. Infodan FMF Uni-Lj 9.-10. feb. 2007

“PAMETNE” LASTNOSTI Električna upornost Infodan FMF Uni-Lj 9.-10. feb. 2007

Temperaturno neodvisna upornost Električna upornost v Al-Pd-Mn Temperaturno neodvisna upornost ( med 300 in 2 K) Infodan FMF Uni-Lj 9.-10. feb. 2007

“PAMETNE” LASTNOSTI Toplotna prevodnost Infodan FMF Uni-Lj 9.-10. feb. 2007

ε – faze v Al-Pd-(Mn,Fe,Co,Rh) električni prevodnik + toplotni izolator SiO2 ... toplotni izolator Al kovina: κ273K= 240 W/mK Infodan FMF Uni-Lj 9.-10. feb. 2007

Trenje, obraba površin in hladno varjenje – tanke prevleke Infodan FMF Uni-Lj 9.-10. feb. 2007

življenjska doba rezilnih ploščic povečana za 20 % Kvazikristalne tanke prevleke življenjska doba rezilnih ploščic povečana za 20 % neprevlečene prevlečene z Al-Cu-Fe Infodan FMF Uni-Lj 9.-10. feb. 2007

Nanostrukture – β-MnO2 nanopalice SEM TEM Infodan FMF Uni-Lj 9.-10. feb. 2007

STM (vrstični tunelski mikroskop) RAZISKAVE POVRŠIN STM (vrstični tunelski mikroskop) NbTe2 Infodan FMF Uni-Lj 9.-10. feb. 2007

AFM (mikroskop na atomsko silo) RAZISKAVE POVRŠIN AFM (mikroskop na atomsko silo) Infodan FMF Uni-Lj 9.-10. feb. 2007

BIOFIZIKALNE RAZISKAVE AFM (mikroskop na atomsko silo) bakterija Infodan FMF Uni-Lj 9.-10. feb. 2007

JEDRSKA MAGNETNA RESONANCA Infodan FMF Uni-Lj 9.-10. feb. 2007

SLIKANJE Z MAGNETNO RESONANCO Infodan FMF Uni-Lj 9.-10. feb. 2007