Phase formation in the beryllium-titanium thin film system
Description
Breeding blankets for future nuclear fusion reactors are very interesting. Improved properties, for example in terms of tritium retention, combined with the still high neutron multiplication, make beryllium-titanium compounds with a high beryllium content promising materials. Knowledge about phase formation and phase stability, particularly at high temperatures, is essential for possible industrial application. In the present work, these properties are investigated in beryllium-titanium thin-film systems. For this purpose, layers of titanium a few nanometers thick are vapor-deposited on beryllium substrates, characterized and heated to temperatures of up to 1000 K for defined periods of time. High-resolution measurements using photoelectron spectroscopy enable temperature- and time-dependent analysis of phase formation. Beryllium layers on titanium substrates are investigated in the same way.
Abstract (German)
Beryllium kann zur Neutronenvervielf#Latin Small Letter A With Diaeresis#ltigung eingesetzt werden, was f#Latin Small Letter U With Diaeresis#r Brutblankets zuk#Latin Small Letter U With Diaeresis#nftiger Kernfusionsreaktoren sehr interessant ist. Verbesserte Eigenschaften etwa bei der Tritiumr#Latin Small Letter U With Diaeresis#ckhaltung kombiniert mit der nach wie vor hohen Neutonenvervielf#Latin Small Letter A With Diaeresis#ltigung machen Beryllium-Titan-Verbindungen mit hohem Berylliumanteil zu vielversprechenden Materialien. Kenntnisse #Latin Small Letter U With Diaeresis#ber die Phasenbildung und die Phasenstabilit#Latin Small Letter A With Diaeresis#t insbesondere bei hohen Temperaturen sind f#Latin Small Letter U With Diaeresis#r eine m#Latin Small Letter O With Diaeresis#gliche industrielle Anwendung essentiell. Im Rahmen der vorliegenden Arbeit werden diese Eigenschaften an Beryllium-Titan-D#Latin Small Letter U With Diaeresis#nnschichtsystemen untersucht. Daf#Latin Small Letter U With Diaeresis#r werden wenige Nanometer dicke Schichten Titan auf Berylliumsubstrate gedampft, charakterisiert und auf Temperaturen bis 1000 K f#Latin Small Letter U With Diaeresis#r definierte Zeitr#Latin Small Letter A With Diaeresis#ume erhitzt. Hochaufl#Latin Small Letter O With Diaeresis#sende Messungen mit Photoelektronenspektroskopie erm#Latin Small Letter O With Diaeresis#glichen die temperatur- und zeitabh#Latin Small Letter A With Diaeresis#ngige Analyse der Phasenbildung. Berylliumschichten auf Titansubstraten werden auf die gleiche Weise untersucht.Additional details
Additional titles
- Original title (German)
- Phasenbildung im Beryllium-Titan Dünnschichtsystem
Publishing Information
- Imprint Pagination
- 184 p.
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- Subject category
- S36: MATERIALS SCIENCE; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Thesis, Non-conventional Literature
- Descriptors DEI
- TRITIUM; BERYLLIUM; BREEDING BLANKETS; NEUTRONS; PHASE STABILITY; PHOTOELECTRON SPECTROSCOPY; THERMONUCLEAR REACTORS; THIN FILMS; TITANIUM; TITANIUM COMPOUNDS
- Descriptors DEC
- ALKALINE EARTH METALS; BARYONS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; ELECTRON SPECTROSCOPY; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; FILMS; HADRONS; HYDROGEN ISOTOPES; ISOTOPES; LIGHT NUCLEI; METALS; NUCLEI; NUCLEONS; ODD-EVEN NUCLEI; RADIOISOTOPES; REACTOR COMPONENTS; SPECTROSCOPY; STABILITY; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; YEARS LIVING RADIOISOTOPES