Ion-implantation-induced phase separation and crystallization in lithia-silica glasses
Crystallization of annealed Li/sub 2/O.2SiO/sub 2/ glasses implanted with inert ions and fused SiO/sub 2/ glass implanted with Li ions was monitored using infrared reflection spectroscopy. Elastic recoil detection analysis was used to study changes in the Li and H concentration induced in these glasses by implantation and annealing. Implantation of Li/sub 2/O.2SiO/sub 2/ with inert ions results in Li depletion, accompanied by H indiffusion, in the implanted region. For Li-implanted SiO/sub 2/, crystallization of ..cap alpha..-quartz is accompanied by appreciable Li diffusion to the surface and attendant H migration to the Li-depleted region. The crystallization mechanisms are discussed in terms of phase separation in the lithia-silica system.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5311158
- Report Number(s):
- SAND-80-0823C; CONF-800744-5
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALI METAL COMPOUNDS
ALKALI METALS
ANNEALING
CHALCOGENIDES
CRYOGENIC FLUIDS
DIFFUSION
ELEMENTS
FLUIDS
GLASS
HEAT TREATMENTS
HYDROGEN
ION IMPLANTATION
LITHIUM
LITHIUM COMPOUNDS
LITHIUM OXIDES
METALS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
SILICON COMPOUNDS
SILICON OXIDES