Piezoelectric characterization of ejecta from shocked tin surfaces

Autor:	William T. Buttler, Gerald Stevens, Paulo Rigg, Michael Grover, N. S. P. King, Steve K. Lamoreaux, G. S. Macrum, James E. Hammerberg, William W. Anderson, W. S. Vogan, L. R. Veeser, K. B. Morley, William Turley
Rok vydání:	2005
Předmět:	Materials science Piezoelectric sensor Lithium niobate General Physics and Astronomy chemistry.chemical_element Lead zirconate titanate Piezoelectricity Shock (mechanics) chemistry.chemical_compound chemistry Composite material Tin Ejecta Groove (music)
Zdroj:	Journal of Applied Physics. 98:113508
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.2132521
Popis:	Using piezoelectric diagnostics, we have measured densities and velocities of ejected particulate as well as “free-surface velocities” of bulk tin targets shock loaded with high explosive. The targets had finely grooved, machined finishes ranging from 10 to 250μin. Two types of piezoelectric sensor (“piezopins”), lithium niobate and lead zirconate titanate, were compared for durability and repeatability; in addition, some piezopins were “shielded” with foam and metal foil in order to mitigate premature failure of the pins in high ejecta regimes. These experiments address questions about ejecta production at a given shock pressure as a function of surface finish; piezopin results are compared with those from complementary diagnostics such as x-ray radiography and time-resolved optical transmission techniques. The mass ejection shows a marked dependence on groove characteristics and cannot be described by a groove defect theory alone.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3e6c105638afefb5e4100a9fbae30a64 https://doi.org/10.1063/1.2132521 Zobrazit plný text záznamu