| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Light Emission and Dynamic Failure Mechanism of Hypervelocity Impact on Zr-Ti-Ni-Cu-Be Bulk Metallic Glass |
| SUN Bao-Ru, ZHAN Zai-Ji**, LIANG Bo, ZHANG Rui-Jun, WANG Wen-Kui
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State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004
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| Cite this article: |
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SUN Bao-Ru, ZHAN Zai-Ji, LIANG Bo et al 2011 Chin. Phys. Lett. 28 096102 |
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Abstract Hypervelocity impact on rectangular plate-shaped Zr41Ti14Cu12.5Ni10Be22.5 bulk metallic glass (BMG) is performed by a two−stage light gas gun. The targets used in the experiment are BMG plates with a thickness of 5 mm. The projectile, spherical aluminum (3.1 mm in diameter), is accelerated up to various velocities; the light is detected with a radiometer. The emission lasts from 200 µs up to 1500 µs and the intensity increases from 44 to 900 W/(Sr⋅µm). The duration and intensity of a light emission seem to depend on the impact velocity and the extent of target destruction through the formation of impact craters or penetration.
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| Keywords:
61.43.Dq
62.20.Mk
61.80.Ba
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Received: 01 June 2011
Published: 30 August 2011
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| PACS: |
61.43.Dq
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(Amorphous semiconductors, metals, and alloys)
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62.20.Mk
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61.80.Ba
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(Ultraviolet, visible, and infrared radiation effects (including laser radiation))
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