Essays about: "adhesion test"

Showing result 16 - 20 of 47 essays containing the words adhesion test.

1. 16. A pre-study for functional coatings evaluated on light metals to be applied on a new HPDC Mg-alloy : Investigating tribological and thermophysical properties, as-cast and coated

   University essay from Jönköping University/JTH, Industriell produktutveckling, produktion och design

   Author : Louise Albo Zieme; Pontus Bergstedt; [2021]
   Keywords : reciprocating dry sliding wear test; thermophysical test; NiP-SiC; Ni-SiC; functional coatings; progressive scratch test; adhesion; magnesium alloy; aluminium alloy; hardness.;

   Abstract : Magnesium with two-thirds of the density compared to aluminium and one-quarter of steel, intrigues product developers and material scientists due to the light metal’s excellent combination of strength to weight ratio as well as their capability of being produced as a High Pressure Die Cast component compared to other ferrous or light metal alloys.   However, a magnesium alloy inherits some concerning drawbacks, limiting the exploitation in structural applications and mechanical design such as automotive, heavy machinery and aerospace components. READ MORE

3. 17. Graphene-based Crack-Free Ceramic Coatings for High-Performance Passive RF Devices

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Haomin Liu; [2021]
   Keywords : ;

   Abstract : Dielectric resonators coated with highly conductive metallic layers are widely used in radio frequency (RF) applications. The quality factor (Q-factor) of resonators is a key figure-of-merit that describes the loss and the energy efficiency of the resonators. READ MORE

4. 18. An Investigation of the Adhesive Interaction between Polyethylene and Silicone with DMA and AFM

   University essay from Lunds universitet/Centrum för analys och syntes

   Author : Joel Falk; [2019]
   Keywords : Atomic Force Microscope; Adhesion; Characterization; Dynamic Mechanical Analysis; Injection Molding; Polyethylene; Polymer; Silicone; Test method development; Materials chemistry; Materialkemi; Technology and Engineering;

   Abstract : Stickiness between materials can be a challening task when dealing with the complex interactions and processes related to packaging engineering. Part of the problem is that many factors like temperature, pressure, surface treatment as well as surface roughness all could play a part in contributing to the stickiness between materials. READ MORE

5. 19. A Study of Various Parameters Affecting Adhesion of Coatings to Metal Substrates

   University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

   Author : Worabhorn Pathanatecha; [2019]
   Keywords : adhesion; coatings; metal substrates; silanes; polyurethanes; surface energy; crosslinking agent; adhesion promoters; vidhäftning; beläggningar; metallunderlag; silaner; polyuretaner; ytenergi; tvärbindningsmedel; vidhäftningspromotor;

   Abstract : The adhesion of coatings is of high importance in the coating industry and a more thorough understanding of adhesion behavior is required. In this thesis work, seven parameters affecting adhesion of silane-modified poly(urethane urea) (PUSi) coatings on pretreated steel and aluminum substrates were studied. READ MORE

6. 20. Evaluation of variations of the frictional force between a bullet and a case in a loaded cartridge

   University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

   Author : Mattias Hahlin; [2018]
   Keywords : Frictional force; Bullet; Case; Cartridge;

   Abstract : To ensure that manufactured cartridges is safe to use, a tensile test is performed. The frictional force between the bullet and the case is required according to Normas standard to be between 15 – 75 Kg. Variations of the frictional force, with values outside of the standard had been noted by Norma Precision without understanding the cause. READ MORE