55 citations
5 papers
Nonequilibrium grain size distribution with generalized growth and nucleation rates
Kimberly S. Lokovic, Ralf B. Bergmann, Andreas Bill
We determine the non-equilibrium grain size distribution during the crystallization of a solid in dimensions at fixed thermodynamic conditions, for the random nucleation and gr…
Non-destructive testing of carbon reinforced plastics by means of phase retrieval
Mostafa Agour, Claas Falldorf, Christoph v. Kopylow +1
In this work, the SLM-based phase retrieval system will be used to inspect carbon reinforced plastics samples (CFRP) under applying a thermal load. For this purpose, the system is…
On the Digital Holographic Interferometry of Fibrous Material, I. Optical Properties of Polymer and Optical Fibers
Khaled M. Yassien, Mostafa Agour, Christoph von Kopylow +1
The digital holographic interferometry (DHI) was utilized for investigating the optical properties of polymer and optical fibers. The samples investigated here were polyvinylidene…
Investigation of smooth wave fronts using SLM-based phase retrieval and a phase diffuser
Mostafa Agour, Percival F. Almoro, Claas Falldorf
A phase retrieval technique using a spatial light modulator (SLM) and a phase diffuser for a fast reconstruction of smooth wave fronts is demonstrated experimentally. Diffuse illum…
Time-evolution of grain size distributions in random nucleation and growth crystallization processes
Anthony V. Teran, Ralf B. Bergmann, Andreas Bill
We study the time dependence of the grain size distribution N(r,t) during crystallization of a d-dimensional solid. A partial differential equation including a source term for nucl…