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Shock compression behaviour of titanium diboride
- Source :
- International Journal of Impact Engineering. 32:643-649
- Publication Year :
- 2005
- Publisher :
- Elsevier BV, 2005.
-
Abstract
- Titanium diboride (TiB2) has excellent mechanical properties, and is expected to be used as crashworthy material. In this study, the Hugoniot-measurements were performed on the TiB2 polycrystal by means of the inclined-mirror method combined with the powder gun and two-stage gas gun to study the elastoplastic transition and to search phase transition. The Hugoniot-elastic limit (HEL) stress was measured to be approximately 12 GPa. The shock velocity (US) vs. particle velocity (UP) relation of the final phase was given by U S = 8.79 + 0.78 U P km / s in the plastic region of 0.6–3.0 km/s in particle velocity. The shock velocities were much large compared with the bulk sound velocity, and those in 0.24–0.6 km/s were further larger than the linear Hugoniot relation. This result showed that this material preserved the large shear strength also in the plastic region. No phase transition was observed up to 120 GPa.
- Subjects :
- Phase transition
Materials science
Mechanical Engineering
Aerospace Engineering
Thermodynamics
Ocean Engineering
Compression (physics)
law.invention
Shock (mechanics)
chemistry.chemical_compound
chemistry
Mechanics of Materials
law
Phase (matter)
Automotive Engineering
Light-gas gun
Shear strength
Particle velocity
Composite material
Safety, Risk, Reliability and Quality
Titanium diboride
Civil and Structural Engineering
Subjects
Details
- ISSN :
- 0734743X
- Volume :
- 32
- Database :
- OpenAIRE
- Journal :
- International Journal of Impact Engineering
- Accession number :
- edsair.doi...........315b290b96315002c31183939896d7fe