Dynamic yield, compressional, and elastic parameters for several lightweight intermetallic compounds

Abstract

Articles you may be interested inA single quartz crystal to measure dynamic elastic moduli at several ultrasonic frequencies Rev.Dynamic yield strengths, compression data under uniaxial shock-wave loading, and sonic velocities at 1 bar are reported for polycrystalline TiB 2 , SiC, Be 4 B, Be 4 B+8 wt% BeO, Be 2 B, AIBw TiBe 1 2' and ZrBelJ. Hugoniot elastic limits were measured as 86, 80, 74, 77, 65, 87, 53, and 71 kbar, respectively. Evidence of phase transitions was seen for the Be 4 B materials at 500 kbar and for SiC at 240 and 960 kbar. H PBX 9404 (HMX) Pressed TNT J PBX 9205 (RDX)

A Survey of Compression Studies on Silicon Carbide (SiC)

“…In this figure, the data points denoted by HEL are at or below the HEL; PL1 indicate inelastic deformation of SiC, and PL2 indicate the transformed phase of SiC. This figure shows that the compression data of McQueen et al [10], Marsh [11], and Gust et al [12] are consistent with each other. The shock compression data of almost fully dense 6H-SiC reported by Sekine and Kobayashi [13,14] is suffer than of the lowdensity KT SiC.…”

“…Holmquist et al [27] provide these properties for other SiCs. The accuracies of sound velocities and scatter in the sound wave velocities between samples of KTSiC were each reported to be within 2% [12]. The properties of SiC-B and SiC-N given in here were reported by Dandekar and Bartkowski [21].…”

“…McQueen et al [10] and Marsh [11] published shock compression data on SiC, with density varying between 2.33 and 3.12 Mg/m 3 . Gust et al [12] measured shock compression of SiC with a density of 3.09 Mg/m 3 . The material used by Gust et al [12] was hot-pressed and manufactured and marketed by Carborundum Company under the name Type KT SiC.…”

“…Gust et al [12] measured shock compression of SiC with a density of 3.09 Mg/m 3 . The material used by Gust et al [12] was hot-pressed and manufactured and marketed by Carborundum Company under the name Type KT SiC. They reported the impurities in KT SiC.…”

“…In addition, over the past four decades a large number of shock wave compression experiments have been conducted on polycrystalline SiCs to determine their compressibility and shear strength retained under plane shock wave compression [10][11][12][13][14][15][16][17][18][19][20]. This list excludes shock wave investigation studies dealing with spallation in SiC because Dandekar and Bartkowski [21] recently covered this subject.…”