Bridgman's concern (shock compression science)

Conference · Sun Jul 10 00:00:00 EDT 1994 · AIP Conference Proceedings (American Institute of Physics); (United States)

DOI:https://doi.org/10.1063/1.46127· OSTI ID:7139402

Graham, R A ^[1]

---

1. Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)

In 1956 P. W. Bridgman published a letter to the editor in the Journal of Applied Physics reporting results of electrical resistance measurements on iron under static high pressure. The work was undertaken to verify the existence of a polymorphic phase transition at 130 kbar (13 GPa) reported in the same journal and year by the Los Alamos authors, Bancroft, Peterson, and Minshall for high pressure, shock-compression loading. In his letter, Bridgman reported that he failed to find any evidence for the transition. Further, he raised some fundamental concerns as to the state of knowledge of shock-compression processes in solids. Later it was determined that Bridgman's static pressure scale was in error, and the shock observations became the basis for calibration of pressure values in static high pressure apparatuses. In spite of the error in pressure scales, Bridgman's concerns on descriptions of shock-compression processes were perceptive and have provided the basis for subsequent fundamental studies of shock-compressed solids. The present paper, written in response to receipt of the 1993 American Physical Society Shock-Compression Science Award, provides a brief contemporary assessment of those shock-compression issues which were the basis of Bridgman's 1956 concerns. [copyright] 1994 American Institute of Physics

• DOE Contract Number: AC04-76DP00789
• OSTI ID: 7139402
• Report Number(s): CONF-921145-; CODEN: APCPCS
• Journal Information: AIP Conference Proceedings (American Institute of Physics); (United States), Vol. 309:1; Conference: Production and neutralization of negative ions and beams, Upton, NY (United States), 9-13 Nov 1992; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
SOLIDS
SHOCK WAVES
ELECTRICAL PROPERTIES
ELECTRONIC STRUCTURE
PHASE TRANSFORMATIONS
POROUS MATERIALS
POWDERS
VERY HIGH PRESSURE
MATERIALS
PHYSICAL PROPERTIES
665000* - Physics of Condensed Matter- (1992-)
661200 - Techniques of General Use in Physics- (1992-)