Advances in ferroelectric polymers for shock compression sensors

Conference · Wed Oct 01 04:00:00 EDT 1997

OSTI ID:532650

Bauer, F; Moulard, H ^[1]; Samara, G ^[2]

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1. Institut Franco-Allemand de Recherches, Saint-Louis (France)
2. Sandia National Labs., Albuquerque, NM (United States)

Our studies of the shock compression response of PVDF polymer are continuing in order to understand the physical properties under shock loading and to develop high fidelity, reproducible, time-resolved dynamic stress gauges. New PVDF technology, new electrode configurations and piezoelectric analysis have resulted in enhanced precision gauges. Our new standard gauges have a precision of better than 1% in electric charge release under shock up to 15 GPa. The piezoelectric response of shock compressed PVDF gauges 1 mm{sup 2} in active area has been studied and yielded well-behaved reproducible data up to 20 GPa. Analysis of the response of these gauges in the {open_quotes}thin mode regime{close_quotes} using a Lagrangian hydrocode will be presented. P(VDF-TrFE) copolymers exhibit unique piezoelectric properties over a wide range of temperature depending on the composition. Their properties and phase transitions are being investigated. Emphasis of the presentation will be on key results and implications.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 532650
• Report Number(s): SAND--97-2282C; CONF-970707--13; ON: DE98000041
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
66 PHYSICS
FERROELECTRIC MATERIALS
FLUORINE COMPOUNDS
PIEZOELECTRICITY
POLYMERS
PRESSURE DEPENDENCE
SHOCK WAVES
STRESS ANALYSIS
TEMPERATURE DEPENDENCE
VINYLIDENE RADICALS