Low-density carbonized composite foams for direct-drive laser ICF targets
The design for a direct-drive, high-gain laser inertial confinement fusion target calls for the use of a low-density, low-atomic-number foam to confine and stabilize liquid deuterium-tritium (DT) in a spherical-shell configuration. Over the past two years, we have successfully developed polystyrene foams (PS) and carbonized resorcinol-formaldehyde foams (CRF) for that purpose. Both candidates are promising materials with unique characteristics. PS has superior mechanical strength and machinability, but its relatively large thermal contraction is a significant disadvantage. CRF has outstanding wettability and dimensional stability in liquid DT; yet it is much more fragile than PS. To combine the strengths of both materials, we have recently developed a polymer composite foam which exceeds PS in mechanical strength, but retains the wettability and dimension stability of CRF. This paper will discuss the preparation, structure, and properties of the polymer composite foams. 5 refs., 1 fig., 1 tab.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5850057
- Report Number(s):
- UCRL-100798; CONF-890902-6; ON: DE89012328
- Resource Relation:
- Conference: 198. American Chemical Society national meeting, Miami, FL, USA, 10-15 Sep 1989; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
FOAMS
CHEMICAL PREPARATION
LASER TARGETS
DESIGN
DEUTERIUM
ICF DEVICES
POLYMERS
TRITIUM
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
COLLOIDS
DISPERSIONS
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
RADIOISOTOPES
STABLE ISOTOPES
SYNTHESIS
TARGETS
THERMONUCLEAR DEVICES
YEARS LIVING RADIOISOTOPES
700208* - Fusion Power Plant Technology- Inertial Confinement Technology