爆炸烧结制备W-Al含能结构材料及其准静态压缩特性研究

Translated title of the contribution: Fabrication of W-Al Energetic Structural Materials by Explosive Consolidation and Investigation of Its Quasi-Static Compression Properties

Bi Wang, Erfeng An, Pengwan Chen, Qiang Zhou*, Xin Gao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Nearly fully dense W-Al energetic structural material (ESM) was successfully prepared by explosive sintering with W and Al powder with different particle sizes. It was found that shock wave pressure is the dominant factor for powder densification and the particle size of powder has a significant influence on the final density and microstructure of the compacted ESM. The smaller the W particle size is, the more severely the W particle agglomerate, which hinders the densification, leading to the formation of continuous W phase in the compacted ESM. The maximum compressive strength and failure strain of the sample reach 288 MPa and 20%, respectively. The mechanical properties and fracture mode of the consolidated material depend on the continuous phase, the ESM with continuous Al phase presents low compressive strength and good ductility with anaxial split failure, while the one with continuous W phase shows brittleness and high compressive strength with a shear failure, which is consistent with the properties of Al and W, respectively.

Translated title of the contributionFabrication of W-Al Energetic Structural Materials by Explosive Consolidation and Investigation of Its Quasi-Static Compression Properties
Original languageChinese (Traditional)
Article number063401
JournalGaoya Wuli Xuebao/Chinese Journal of High Pressure Physics
Volume33
Issue number6
DOIs
Publication statusPublished - 25 Dec 2019

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