VDI 2840 Carbon films - Basic knowledge, film types and properties
Данный раздел/документ содержится в продуктах:
- Техэксперт: Машиностроительный комплекс
- Картотека зарубежных и международных стандартов
- VDI 3824 BLATT 1 PVD and CVD hard coatings - Quality assurance - Characteristic profiles and fields of application of hard coatings
- 25
- VDI 3824 BLATT 1 PVD and CVD hard coatings - Quality assurance - Characteristic profiles and fields of application of hard coatings
- 25.220
- VDI 3824 BLATT 4 Quality assurance of PVD and CVD hard coating - Inspection planning of hard coatings
- VDI 3824 BLATT 4 Quality assurance of PVD and CVD hard coating - Inspection planning of hard coatings
- VDI 2841 BLATT 2 CVD diamond tools - Applications
- VDI 2840 Carbon films - Basic knowledge, film types and properties
- ASTM F1711 Standard Practice for Measuring Sheet Resistance of Thin Film Conductors for Flat Panel Display Manufacturing Using a Four-Point Probe Method
- Картотека зарубежных и международных стандартов
Verein Deutscher Ingenieure
Carbon films - Basic knowledge, film types and properties
N VDI 2840
Annotation
The subject of the present VDI Guideline is carbon films which are deposited by the vacuum deposition method (PVD or CVD). These modern coating systems extend from extremely hard diamond films at one end of the scale, passing through a wide variety of mostly hydrogenated amorphous carbon films before reaching soft graphite films at the other end. This guideline pursues two aims: firstly, it should provide a uniform classification and nomenclature for carbon films; secondly, it should enable the prospective user of coated workpieces to make a preliminary selection of suitable carbon film types.
The present guideline is primarily intended for those considering using coatings for tribological loading cases and provides this user group with basic technical knowledge about carbon films. Thus it supplies the required information to allow the user to unambiguously identify the carbon films which are available on the market and also to compare them. For this purpose the guideline contains a classification of all carbon films which subdivides all known film types on the basis of their physical and chemical nature. This means that in discussions with a coating company a potential user will be able to identify the precise type of a specific coating being offered him or the types of the individual layers in case of coating systems. When presenting their products, coating companies are also recommended to provide alongside the commercial name the corresponding designation according to this classification. In case of amorphous carbon films, suppliers should refrain from providing only the generic term DLC (diamondlike carbon). Instead the specific film type should be indicated – for example, "a-C:H:Me" or "ta-C".
The guideline also includes a section with descriptions of the important properties of the individual film types. This should allow the user to pick the most suitable film type for his particular tribological application.
