Daniel Heim
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View article: Highly conductive and thick a-C:H:N films deposited at elevated temperatures via direct current PACVD
Highly conductive and thick a-C:H:N films deposited at elevated temperatures via direct current PACVD Open
View article: Tribological Behaviour of Dlc-Coated Ti6al4v Under Dry and Submerged Sliding Contact: Role of Pa-Cvd Process Gas Mixture
Tribological Behaviour of Dlc-Coated Ti6al4v Under Dry and Submerged Sliding Contact: Role of Pa-Cvd Process Gas Mixture Open
View article: Reduction in Powder Wall Friction by an a-C:H:Si Film
Reduction in Powder Wall Friction by an a-C:H:Si Film Open
The wall friction angle is an important parameter in powder flow. In a recent study for various powders, a reduction in the wall friction angle for steel was demonstrated by the application of an a-C:H:Si film on the steel surface. This wo…
View article: Effect of deposition temperature and hydrogen as a process gas on mechanical properties and specific electrical resistivity of thick a-C:H obtained by means of PACVD
Effect of deposition temperature and hydrogen as a process gas on mechanical properties and specific electrical resistivity of thick a-C:H obtained by means of PACVD Open
DLC coatings are widely used for their protective properties such as high wear resistance, low friction coefficient as well as chemical inertness. However, their electrical resistance is usually very high, which limits their utilization in…
View article: Morphology-controlled atmospheric pressure plasma synthesis of zinc oxide nanoparticles for piezoelectric sensors
Morphology-controlled atmospheric pressure plasma synthesis of zinc oxide nanoparticles for piezoelectric sensors Open
Zinc oxide nanoparticles, especially those with a high aspect ratio (i. e., nanorods and nanowires), are of great interest for many applications as they are piezoelectric, photocatalytic and antimicrobial. In the present study, a plasma fl…
View article: Deposition of A-C:H and A-C:H:Si to Achieve High Electrical Conductivity and High Film Thickness
Deposition of A-C:H and A-C:H:Si to Achieve High Electrical Conductivity and High Film Thickness Open
View article: Reduction of Wall Friction of Fine Powders by Use of Wall Surface Coatings
Reduction of Wall Friction of Fine Powders by Use of Wall Surface Coatings Open
In this study, the possibilities for the reduction of powder wall friction by different types of surface coatings on the wall material were investigated. Two conventional coatings, an ultra-high molecular weight polyethylene plate and an a…
View article: Influence of Surface Integrity after Turning on the Consecutive Plasma Nitridation and Barkhausen Noise Emission
Influence of Surface Integrity after Turning on the Consecutive Plasma Nitridation and Barkhausen Noise Emission Open
This paper deals with non destructive evaluation of components after plasma nitridation via Barkhausen noise techniques. The effect of the different surface state before plasma nitriding is studied via non destructive Barkhausen noise tech…
View article: Carbon based DLC films: Influence of the processing parameters on the structure and properties
Carbon based DLC films: Influence of the processing parameters on the structure and properties Open
Hydrogenated carbon-based films, such as DLC (“Diamond Like Carbon”), have interesting properties such as excellent tribological behavior, low friction coefficient, high superficial hardness and good wear resistance; they are chemically in…
View article: Metalation of Porphyrins by Lanthanide Atoms at Interfaces: Direct Observation and Stimulation of Cerium Coordination to 2H-TPP/Ag(111)
Metalation of Porphyrins by Lanthanide Atoms at Interfaces: Direct Observation and Stimulation of Cerium Coordination to 2H-TPP/Ag(111) Open
Although on-surface metalation protocols of tetrapyrroles with 3d metals are well established, reports on the formation of lanthanide tetrapyrrole complexes are scarce. Here, we address the synthesis of lanthanide-tetrapyrrole units in det…
View article: Carbon based DLC films: Influence of the processing parameters on the structure and properties
Carbon based DLC films: Influence of the processing parameters on the structure and properties Open
Hydrogenated carbon-based films, such as DLC (“Diamond Like Carbon”), have interesting properties such as excellent tribological behavior, low friction coefficient, high superficial hardness and good wear resistance; they are chemically in…
View article: Comparison of Tribological Properties of Stainless Steel with Hard and Soft DLC Coatings
Comparison of Tribological Properties of Stainless Steel with Hard and Soft DLC Coatings Open
Stainless steels are widely used in chemical, petrochemical and food-processing industries due to their good anticorrosion properties. However, they generally exhibit poor tribological properties which limit their applications in tribocorr…
View article: Mechanical Behavior of Nitrided 316L Austenitic Stainless Steel Coated with a:C-H-Si
Mechanical Behavior of Nitrided 316L Austenitic Stainless Steel Coated with a:C-H-Si Open
The austenitic stainless steel AISI 316L is used in chemical and other industries due to its good corrosion properties; however, it has a poor wear resistance. Plasma assisted treatments such as diffusion process and/or coatings can be use…