FORSCHUNGSZENTRUM JUELICH G M B H (GERMANY F R) INST FUER ANGEWANDTE WERKSTOF FORSCHUNG*
Click on the titles below to find US government-authored or -collected reports written by FORSCHUNGSZENTRUM JUELICH G M B H (GERMANY F R) INST FUER ANGEWANDTE WERKSTOF FORSCHUNG*
A new PM net-shape process, Wet Powder Pouring(WPP), has been described. The process used a powder-carrier-binder fluid mixture in the shaping of parts. The end-shape parts show good surface quality and internal structure. The mechanical properties of WPP processed materials are comparable to those of the same material conventionally processed.
An increasing demand for high temperature materials with special requirements to strength in addition to surface resistance in severe environments has led to the development of composite materials by powder metallurgical processes. plasma spraying is suitable production method for shaped parts with graded or tailored structure, because it easily allows a local variation of composition within the structure. this study aimed at the production of continuously graded metal/ceramic composites to ...
For an optimal selection of structural materials in practical applications it is important to obtain detailed knowledge of the mechanical load on the system. Usually it is very difficult to judge these load conditions, especially in composites, for example ceramic layers on metallic substrates. Starting from experimental findings on the damage behavior of a special oxide/ metallic substrate system, an elementary analytical model is derived in the first part of ...
Low porosity chromia coatings have been plasma sprayed onto several substrates in atmospherical and vacuum environments. Different phases appear in the sprayed product; metallic chromium and the metastable tetragonal Cr3O4 phase have been identified. A post annealing treatment removes these phases completely. This behavior can be correlated with differences between the thermal expansion coefficients comparing the as-sprayed with the annealed material. Hot Isostatic Pressing improves the interface bonding between coating ...
Reports by Corporate Author
