Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 12 of 12 for “"Mechanische Eigenschaft"”.
-
Textile Strukturen zur Bewehrung zementgebundener Matrices
As a complement to shortfibre reinforced air-placed concrete, textile reinforced concrete elements present new applications in the area of thin-walled elements, due to their high strength resitance. By physical and chemical examinations fibermaterial is detected, which on principle is suitable for …
-
Vorhersage der mechanischen Folieneigenschaften bei der Schlauchfolienextrusion
The manufacturing of blown films made of thermoplastic materials is considered an important processing technique for polymer raw material. Today, one goal of the further development of the blown film extrusion is the reduction of raw material application while maintaining or improving the quality …
-
Strip with gradient properties by annealing in reactive atmospheres
Interstitial Free (IF) steels have excellent deep drawing capabilities and non-ageing properties. These steel grades still have some disadvantages such as a generally weak mechanical strength and high reactivity in the grain boundaries during galvannealing, which produces brittle …
-
Verarbeitung und Eigenschaften von Faserverbundkunststoffen mit Elastomermatrix
Elastomer matrices extend the range of fiber reinforced plastics (FRP). The work presents an overview over materials and processing methods for such E-FRP. First, an overview of low-viscosity elastomer systems is given, which are suitable for E-FRP. Twelve different fiber-matrix-combinations based …
-
High temperature mechanical properties of cast as well as powder metallurgical manufactured metallic foams
This work deals with studying the high temperature mechanical properties of different types of metallic foams. The foams which have been used in this work were manufactured by two different processing methods. Al-foams (trade-name Alporas) were processed by a melt metallurgical route whereas …
-
Untersuchung der Reaktionen an der Schnittstelle Korn - Bindung für Sol-Gel-Korund
In the early 1990ths grinding wheels of Sol-Gel-Corundum were introduced for the finishing of metallic materials. Sol-Gel-Corundum wheels represent a flexible, efficient and economical alternative to the high-hard abrasives CBN and diamond. Likewise high-speed grinding technique was established in …
-
Microstructure and mechanical properties of the exoskeleton of the lobster Homarus americanus as an example of a biological composite material
The main focus of this study was the characterization of a mineralized biological tissue with respect to its microstructure and mechanical properties using the cuticle or shell of the American lobster as a novel model material. The cuticle of the lobster Homarus americanus is a nano-composite …
-
Größeneinflüsse beim mechanischen Verhalten von Wolfram,Kupfer-Teilchenverbundwerkstoffen
Tungsten/copper (W/Cu) particle reinforced composites were used to investigate the scaling effects on the deformation and fracture behaviour. The effects of the volume fraction and the particle size of the reinforcement (tungsten particles) were studied. W/Cu-80/20, 70/30 and 60/40 wt.% each with …
-
Al 2 O 3 thin films: relation between structural evolution, mechanical properties and stability
In this thesis the relation between structure evolution, mechanical properties, and stability was investigated for Al2O3 thin films. The existence of different polymorphs of this material offers a range of properties for applications, but also meets the process control challenges when the formation …
-
Mechanical and fracture mechanical properties of fine grained concrete for textile reinforced composites
The development of textile reinforced concrete (TRC), where multi-axial fabrics are used in combination with fine grained concrete, allows the design of very thin-structured concrete elements with a high strength in compression as well as tension. It is the main objective of this study to determine …