Filtern
Erscheinungsjahr
Dokumenttyp
- Zeitschriftenartikel (113) (entfernen)
Schlagworte
- Dye (5)
- Glass (5)
- Quantum yield (5)
- Viscosity (5)
- AIE (4)
- Additive manufacturing (4)
- Fluorescence (4)
- LTCC (4)
- Lifetime (4)
- POD (4)
Organisationseinheit der BAM
- 5 Werkstofftechnik (16)
- 5.6 Glas (16)
- 1 Analytische Chemie; Referenzmaterialien (10)
- 6 Materialchemie (10)
- 8 Zerstörungsfreie Prüfung (10)
- 8.5 Röntgenbildgebung (9)
- 1.2 Biophotonik (6)
- 6.1 Oberflächen- und Dünnschichtanalyse (6)
- 4 Material und Umwelt (4)
- 6.5 Synthese und Streuverfahren nanostrukturierter Materialien (3)
Rechnerische Simulation von Versuchen am Beispiel des Wärmeschutzes von Fensterkonstruktionen
(1986)
27Al nuclear magnetic resonance spectra of polycrystalline aluminium borate 9Al2O3 · 2B2O3 have been measured in double rotation at 11.7 and 7.0 T and high-speed magic-angle spinning at 7.0, 9.4, 11.7, 14.1 and 17.6 T. Spinning sidebands from the satellite transitions were observed at 7.0 and 14.1 T. Each of the four structural aluminium sites [Al(IV), Al(V)(1), Al(V)(2) and Al(VI)] are observed, characterised and assigned in the spectra. The obtained parameter set gives a fully consistent interpretation in agreement with the crystal structure of the compound.
The applicability of excimer laser at 308 nm and Nd:YAG laser at 532 nm with fluences below 0.86 J/cm2 for cleaning of cellulose and paper materials was evaluated. The extent of degradation of purified cotton cellulose and Fabriano paper after laser treatment as well as after a period of accelerated humid oven ageing was determined by following the changes in the degree of polymerization. While irradiation of paper with the excimer laser at 308 nm results in depolymerization of cellulose accompanied by a decrease in ISO brightness, no detrimental effects of Nd:YAG laser treatments were observed.