Superharte, unterschiedlich gradierte PVD-Kohlenstoffschichten mit und ohne Zusaetze von Titan und Silizium
Germany
Superhard PVD carbon films deposited with different gradients with and without additions of titanium and silicon / Super...
This work focusses on thin carbon-based films, deposited by magnetron sputtering with additional argon ion bombardment (0 eV to 800 eV) without extra adhesive layer on hard metal inserts. As one possibility of increasing the reduced adherence of hard carbon films the deposition of films with additions of titanium and silicon is studied. The aim of ...
Transmission electron microscopy of defects and internal fields in GaN structures
The main aim of this study was to understand the microstructure of GaN and InGaN/GaN and to examine electric fields around the defects, and across the quantum wells by electron holography. For this reason different types of GaN and InGaN/GaN samples have been prepared and studied. Conventional transmission electron microscopy has been used for stru...
Examination of the effect of graphitising modification of high-strength cast iron in liquid and solid-liquid states
United Kingdom
Transmission electron microscopy of defects and internal fields in GaN structures
United Kingdom
Effect of Sr on the graphitisation of white cast iron
United Kingdom
Formgebungs- und Anwendungseigenschaften silizidhaltiger TiAl-Legierungen
Germany
Processing and application properties of silicon-doped titanium aluminides / Formgebungs- und Anwendungseigenschaften si...
Submicrocrystalline intermetallic/ceramic composites based on the system Ti-Al-Si are prepared by mechanical alloying and subsequent powder consolidation. Finely dispersed silicides prevent coarsening of the #gamma#-TiAl matrix during hot-forming. Therefore, the deformation temperatures can be reduced by about 200 C compared to conventional titaniu...
Examination of the effect of graphitising modification of high-strength cast iron in liquid and solid-liquid states
In this work, we present results of examination of the effect of the composition of graphitised in additions on the crystallisation and kinetics of the graphitisation of nodular cast iron produced by processing using a nickel-Mn master alloy. This in the experimentally used the modification agents melting on the basis of an iron-silicon melt with o...
Effect of Sr on the graphitisation of white cast iron
Graphitising annealing is the basis of the production of malleable cast iron. In this case, hypoeutectic low-silicon cast iron with a wide structure I use. A significant role in the precipitation of graphite may be played by the micropores of shrinkage energy and which usually formalism result of insufficient supply and feeding between the dendrite...
