| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Bjerrum, Niels Janniksen
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2022Pressurized solid phosphate electrolyzer for medium temperature water splittingcitations
- 2020CsH2PO4 as Electrolyte for the Formation of CH4 by Electrochemical Reduction of CO2citations
- 2016Amino-Functional Polybenzimidazole Blends with Enhanced Phosphoric Acid Mediated Proton Conductivity as Fuel Cell Electrolytescitations
- 2014Hydrogen evolution activity and electrochemical stability of selected transition metal carbides in concentrated phosphoric acidcitations
- 2014The Chemical Vapour Deposition of Tantalum - in long narrow channels
- 2014Intermediate Temperature Steam Electrolysis with Phosphate-Based Electrolytes
- 2014Development of Non-Platinum Catalysts for Intermediate Temperature Water Electrolysis
- 2014Invited: A Stability Study of Alkali Doped PBI Membranes for Alkaline Electrolyzer Cells
- 2014High Surface Area Tungsten Carbides: Synthesis, Characterization and Catalytic Activity towards the Hydrogen Evolution Reaction in Phosphoric Acid at Elevated Temperatures
- 2013Catalyst Degradation in High Temperature Proton Exchange Membrane Fuel Cells Based on Acid Doped Polybenzimidazole Membranescitations
- 2013Development and Study of Tantalum and Niobium Carbides as Electrocatalyst Supports for the Oxygen Electrode for PEM Water Electrolysis at Elevated Temperaturescitations
- 2012Nickel and its alloys as perspective materials for intermediate temperature steam electrolysers operating on proton conducting solid acids as electrolyte
- 2012WC as a non-platinum hydrogen evolution electrocatalyst for high temperature PEM water electrolyserscitations
- 2012Development of Refractory Ceramics for The Oxygen Evolution Reaction (OER) Electrocatalyst Support for Water Electrolysis at elevated temperaturescitations
- 2011Corrosion behaviour of construction materials for high temperature steam electrolyserscitations
- 2011New Construction and Catalyst Support Materials for Water Electrolysis at Elevated Temperatures
- 2011Oxidative degradation of polybenzimidazole membranes as electrolytes for high temperature proton exchange membrane fuel cellscitations
- 20101.7 nm Platinum Nanoparticles: Synthesis with Glucose Starch, Characterization and Catalysiscitations
- 2010Strategic surface topographies for enhanced lubrication in sheet forming of stainless steelcitations
- 2007Corrosion monitoring in a straw-fired power plant using an electrochemical noise probecitations
- 2005Electrochemical noise measurements of steel corrosion in the molten NaCl-K2SO4 systemcitations
- 2004Development of strategic surface topographies for lubrication in sheet forming of stainless steel
- 2001Phosphoric acid doped polybenzimidazole membranes: Physiochemical characterization and fuel cell applications [PEM fuel cells]
- 2000On the chemical nature of boundary lubrication of stainless steel by chlorine - and sulfur-containing EP-additivescitations
- 2000Cold Forging of Stainless Steel with FeCl3 based lubricants
Places of action
| Organizations | Location | People |
|---|
article
On the chemical nature of boundary lubrication of stainless steel by chlorine - and sulfur-containing EP-additives
Abstract
The nature of the extreme pressure CEP) effect of the dialkylpolysulfides and chlorinated paraffins during the ironing of stainless steel AISI 304 has been studied. A strip reduction test was used in combination with differential thermal analysis (DTA), profilometry, X-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy analysis (AES).<br/><br/>Strip reduction tests, in which chlorinated paraffin and dialkyl sulfide were compared as EP-additives, have shown significantly stronger EP-effect of the chlorine containing lubricant, than for the sulfur containing lubricant. DTA analysis of the Me-powder (where Me = iron, chromium or nickel)-dialkylpolysulfide (or chlorinated paraffin) mixtures have shown that dialkylpolysulfide was chemically active with iron and nickel (the highest activity was with nickel). Chromium was practically nonactive with dialkylpolysulfide. Chlorinated paraffin was equally active with iron, chromium and nickel.<br/><br/>The better lubrication performance demonstrated by chlorinated paraffin compared to dialkylpolysulfides was attributed to the chemical activity of the chlorinated paraffin with all the main components of stainless steel.<br/><br/>The depth profiles of the stainless steel strips were examined before and after strip reduction by use of AES sputter profiling. Results imply that the chlorine containing lubricant enforces the formation of a thick oxide layer. (C) 2000 Elsevier Science S.A. All rights reserved.