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Showing 1 to 12 of 12 for “"Verbundwerkstoff"”.
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Zur hierarchischen und simultanen Multi-Skalen-Analyse von Textilbeton
… Prognose des Materialverhaltens des Hochleistungsverbundwerkstoffes Textilbeton unter Zugbeanspruchungen. Basierend auf einer hierarchischen mechanischen Modellbildung (Multi-Skalen-Analyse) werden die Tragmechanismen des Verbundwerkstoffes auf drei Strukturebenen abgebildet. Damit lassen sich die …
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Modifizierung der Werkstoffe auf Basis von Magnesiumsilicid mit Hilfe der Spark-Plasma-Synthese
… eine Optimierung der Materialeigenschaften von Verbundwerkstoffen durch Nutzung dieser Technik. Die ternären Phasen Mg2Si1−xXx (X = Ge, Sn, Pb) und Mg2−x/2Si1−xSbx Die pulvermetallurgische Herstellung der Phasen Mg2Si1-xXx (X = Ge, Sn und Pb) und der Phase Mg2‑x/2Si1-xSbx gelang in dieser Arbeit …
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On the Multiscale, Mechanical Behaviors of Mineralized Bone
… ein hierarchisch strukturierter, biologischer Verbundwerkstoff, der verschiedene Materialeigenschaften auf unterschiedlichen Längenskalen aufweist. Durch die spezielle Anordnung von Elementen mit geringerer und hoher Festigkeit, können weichere Elemente gegenüber hohen Lasten abgeschirmt …
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Pressureless infiltrated alumina and zirconia based steel - MMCs
Alumina and zirconia based steel-MMCs were produced by pressureless Ti-activated melt infiltration using a high vacuum furnace. The effect of particle size and morphology on the formation of a ceramic network in-situ and MMC properties were investigated using three different alumina powders. The …
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'Quat-Primer' polymers based on b-PEI and their application in composites
The thesis is concerned with the synthesis of functionalized polymers prepared by ring opening reaction of various functionalized five-membered cyclic carbonates and epoxides couplers with branched polyethylenimine (b-PEI). Furthermore, depending on the functionality introduced in the polymer, the …
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Thermodynamic modelling as applied to the development of TRIP-Matrix-Composite materials: The Fe–Mg–Mn–Ti–Zr–O system
This thesis performed within the Collaborative Research Center 799 describes a development of the metal-ceramic thermodynamic databases as applied to the design of the TRIP-Matrix-Composite materials. A wide range of theoretical and experimental investigations have been carried out in the relevant …
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Einspieluntersuchungen von Verbundwerkstoffen mit periodischer Mikrostruktur
In the present work, the shakedown behaviour of composite materials with periodic microstructure is investigated. For this, a general static shakedown theorem is given and proven taking into account the effects of limited linear kinematical hardening and plastic ductile damage. A general procedure …
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Charakterisierung eines neuen, entgasungsarmen und verbrennbaren Formstoffes für Gießereianwendungen : Kohlenstoff AeroSande
Today’s product requirement for the foundry industry are castings of high quality combined with a high productivity and low ecological impact. Therefore research concentrates on solutions of long known problems, like an easier removal of complex or ceramic cores increasing thus the productivity and …
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Acoustic and mechanical properties of viscoelastic, linear elastic and nonlinear elastic composites
This works deals with the analysis of the acoustic and mechanical properties of composite structures. For the investigation of the acoustic properties, linear elasticity, geometric, physical, and structural nonlinearity, and viscoelasticity are taken into account. Imperfect bonding between …
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Modified Phenol-Formaldehyde Resins for C-Fiber Reinforced Composites: Chemical Characteristics of Resins, Microstructure and Mechanical Properties of their Composites
This work correlates the chemistry of phenol-formaldehyde (PF) resins, its functionalities with their microstructural and mechanical properties in composite materials. The main focus is put on the development of the pores in dependence on the chemical composition of the resins and their influence …
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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 …
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Diamond-like carbon and ceramic materials as protective coatings grown by pulsed laser deposition
A rather large number of nitride, carbide, and oxide thin films are used as hard and wear-resistant coatings, for optical, corrosive, and refractory applications that are of crucial importance. Additional requirements place even more stringent conditions on the deposition processes. The properties …