Published August 1981
| Version v1
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CVD in nuclear energy
Description
CVD-deposited pyrocarbon, especially the coatings of nuclear fuel kernels show a structure depending on many parameters such as deposition temperature, nature and pressure of the pyrolysis gas, nature of the substrate, geometry of the deposition system, etc. Because of the variety of pyrocarbon different characterization methods have been developed or qualified for this new application. Additionally classical characterization procedures are available. Beside theoretical aspects concerning the formation and deposition mechanism of pyrocarbon from the gas phase the behaviour of such coatings under irradiation with fast neutrons is discussed. (orig.)
Availability note (English)
MF available from INIS under the Report Number.Abstract (German)
Mittels CVD abgeschiedene Pyrokohlenstoffe, insbesondere Beschichtungen von Kernbrennstoffteilchen, weisen eine von zahlreichen Parametern beeinflusste Struktur auf; hierzu zaehlen die Abscheidungstemperatur, Art und Druck des Pyrolysegases, die Art der Abscheidungsunterlage, die Geometrie des Abscheidungssystems usw. Aufgrund der Vielfaeltigkeit der aufgetretenen Pyrokohlenstoffe wurden verschiedene Charakterisierungsmethoden fuer diese neue Anwendung entwickelt bzw. ertuechtigt. Darueber hinaus stehen herkoemmliche Charakterisierungsverfahren zur Verfuegung. Neben theoretischen Ueberlegungen zur Bildung und zur Abscheidung von Pyrokohlenstoff aus der Gasphase wird auch der Einfluss einer Bestrahlung mit schnellen Neutronen auf die Huellschichten diskutiert. (orig.)
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Additional details
Additional titles
- Subtitle (English)
- Pyrocarbon deposition in fluidized beds
Publishing Information
- Imprint Pagination
- 40 p.
- Report number
- Juel-Spez--121
Conference
- Title
- Workshop - plasma chemistry in technology.
- Dates
- 30 Mar - 1 Apr 1981.
- Place
- Ashkelon, Israel.
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 13683506
- Subject category
- S36: MATERIALS SCIENCE; S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS; S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ANISOTROPY; CERAMOGRAPHY; CHEMICAL VAPOR DEPOSITION; COATED FUEL PARTICLES; DENSITY; DIMENSIONS; ELECTRON MICROSCOPY; FAILURES; FUEL PARTICLES; GEOMETRY; HYDROCARBONS; LAYERS; MICROSTRUCTURE; ORIENTATION; OXIDATION; PERMEABILITY; PHYSICAL RADIATION EFFECTS; POROSITY; PYROLYSIS; PYROLYTIC CARBON; REACTION KINETICS; SURFACE COATING
- Descriptors DEC
- CARBON; CHEMICAL COATING; CHEMICAL REACTIONS; CRYSTAL STRUCTURE; DECOMPOSITION; DEPOSITION; ELEMENTS; KINETICS; MATHEMATICS; MICROSCOPY; NONMETALS; ORGANIC COMPOUNDS; PHYSICAL PROPERTIES; RADIATION EFFECTS