G. Dlubek

Positron annihilation spectroscopy to study nanoprecipitations in aluminium alloys (2004)

Meyendorf, N., Dlubek, G., Surkov, A.

Positron Annihilation Spectroscopy has been used to study the microstructure in aluminum alloy AA7075-T6 after RRA (retrogression and re-aging) heat treatment. Nano-precipitates act as traps for...

The Local Free Volume, Glass Transition, and Ionic Conductivity in a Polymer Electrolyte: A Positron Lifetime Study (2001)

Bamford, D., Dlubek, G., Reiche, A., Alam, M. A., Meyer, Wolfgang H., Galvosas, P., ...

Humidity Sorption in Subnanometer-Size Local Free Volumes of Polymides : A Positron Lifetime Study (2000)

Dlubek, G., Buchhold, R., Hübner, C., Nakladal, A., Meyendorf, N.

Positron annihilation lifetime spectroscopy (PALS) is used to study the local free volume in al polyimide 6FDA-ODA exposed to atmospheres of different relative humidity. The results support a model...

Submicroscopic and atomic scale structure changes during decomposition of Al alloys: a position annihilation study (2000)

Dlubek, G., Depetasse, S., Sourkov, A., Meyendorf, N., Krause-Rehberg, R.

Positron annihilatation techniques are use to study the precipitation processes in quenched Al alloys of the type AlCu1.9, AlCu2.0Mg1.7 and AlSi1 at-%. From the experiments conclusions are drawn with...

Positron Annihilation: A New Method for Studying Subnanometer-Size Local Free Volumes in Polymers (2000)

Dlubek, G., Fretwell, H.M., Meyendorf, N.

Positron/positronium annihilation spectroscopy is a unique tool to probe free-volume holes which apear in amourphous polymers due to the irregular molecular packing. The positron lifetime...

Local Free Volume and Structure of Polymer Gel Electrolytes on the Basis of Alternating Copolymers (2000)

Reiche, A., Dlubek, G., Weinkauf, A., Sandner, B., Fretwell, H. M., Alam, A. A., ...

Analyse der Phasenumwandlungen und der Deformation mittels Positronenannihilation (1999)

Meyendorf, N., Dlubek, G., Surkov, A., Depetasse, S.

Positronenannihilation als neue Methode zur Charakterisierung unterschiedlich ausgelagerter Aluminiumlegierungen sowie des Verformungs- und Ermüdungszustandes von austenitischem Stahl (1999)

Depetasse, S., Meyendorf, N., Dlubek, G., Krause-Rehberg, R., Surkov, A.

Die Positronenannihilation ist eine neue Methode zur Materialcharakterisierung. Sie gibt Informationen über die Konzentration, die Konfiguration und die Struktur von Kristallbaufehler wie...

Positron Annihilation Studies of Early Stages of Precipitation in Aluminium Alloys (1999)

Dlubek, G., Depetasse, S., Meyendorf, N., Sourkov, A.

Positron annihilation lifetime and Doppler-broadened annihilation line spectroscopy were used to study precipitation phenomena in various high-strength Al alloys such as Al-Cu, Al-Cu-Mg (2024) and...

Analysis of Deformation-Induced Microstructure using Positron Annihilation: Dislocations and Vacancies in Nickel and Steel (1999)

Dlubek, G., Sourkov, A., Depetasse, S., Meyendorf, N.

Positron annihilation lifetime (PAL) spectroscopy is used to study the concentration of vacancies, vacancy clusters and dislocations as a function of strain during tensile straining of austentic...

A Study of Precipitation Phenomena in Al-Li and Al-Li-Cu-Mg Alloys by Positron Annihilation and Transmission Electron Microscopy. (1998)

Dlubek, G., Krause, S., Krause, H., Welpmann, K., Peters, M.

Precipitation behavior has been studied in AA 8090 and Al-3Li alloys, and in pure aluminum using positron annihilation spectroscopy and TEM. Results show that the positron lifetime in the 8090 alloy...

Positron Annihilation Studies of Decomposition in Al-Li Base Alloys. (1992)

Dlubek, G., Krause, S., Beresina, A.L., Chuistov, K.S., Welpmann, K., Peters, M.

A Study of Precipitation Phenomena in Al-Li-Cu-Mg Alloys by Positron Annihilation and Transmission Electron Microscopy. (1992)

Dlubek, G, Krause, S., Krause, H., Welpmann, K., Peters, M.

Positron Annihilation Studies of Decomposition in Al-Li Base Alloys (1991)

Dlubek, G., Krause, S., Beresina, A.L., Chuistov, K.S., Welpmann, K., Peters, M.