The process of natural aging in pure ternary Al-Mg-Si alloys was studied by positron
annihilation lifetime spectroscopy in real time in order to clarify the sequence and kinetics of …

Positron annihilation spectroscopy was performed to study the microstructure of peak aged
Al–Zn–Mg–Cu alloy. Applying artificial ageing at different temperatures, the solute content …

In many common Al–Mg–Si alloys (6000 series) intermediate storage at or near 'room
temperature'after solutionising leads to pronounced changes of the precipitation kinetics …

We investigated the ferromagnetism of ZnO induced by oxygen implantation by using spin-
polarized positron annihilation spectroscopy together with magnetization measurements …

Although Al alloys based on the Al–Cu–(Mg) system have been investigated for decades,
information about the evolution of microstructure on the atomistic level during natural ageing …

We present preliminary results on the structure of nano-sized particles (clusters of solute
atoms or Guinier-Preston-Bagaryatsky (GPB) zones) in aluminum alloys. Hindering the …

A digital coincidence Doppler broadening (CDB) spectrometer consisting of two HPGe
detectors is assembled; the energy resolution of each detector is 1.1 keV at energies near …

We present results on the structure of nano-sized particles (Guinier-Preston (GP) and
Guinier-Preston-Bagaryatsky (GPB) zones) in Aluminum alloys. Precipitates of alloying …

The clustering kinetics in quenched pure Al, Al-Mg and Al-Si, as well as in pure or Cu/Ge-
containing Al-Mg-Si alloys during natural ageing have been studied by applying positron …

In this paper, we propose a detector identification method that uses waveform shape
analysis. This method can be used in many experimental contexts involving detectors …