Interfacial structure in TiB 2/Al composite after high speed impact

Q. Guo; D. L. Sun; L. T. Jiang; G. H. Wu; X. L. Han

doi:10.1016/j.micron.2012.01.002

Interfacial structure in TiB ₂/Al composite after high speed impact

Q. Guo
, D. L. Sun^*
, L. T. Jiang
, G. H. Wu
, X. L. Han

^*Corresponding author for this work

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Interfacial structure in 55%TiB ₂/Al composite before and after high speed impact was investigated in detail. It is found that there is no stacking fault in original TiB ₂ particle before fabrication or in TiB ₂ particle in composite. However, after the composite is impacted by 1.2mm projectile with the velocity of 2.5km/s, stacking fault forms along the (0001) plane around the edge of TiB ₂ particle and grows with a step-like epitaxial way, resulting from the high pressure of shock wave. At the bottom of crater in the target, Al matrix around the TiB ₂ particle was molten and then oxidated, which results in the formation of Al _xO _1-x (x<1) phase between TiB ₂ particle and Al matrix. It is found that TiB ₂ particle and Al _xO _1-x phase combine well and have no reacted layer at the interface and there exists an orientation between two phases: [0 1 1̄ 0]TiB2//[3 1 0]AlxO1-x, (2̄ 1 1 0)TiB2//(0 0 2)AlxO1-x.

Original language	English
Pages (from-to)	688-693
Number of pages	6
Journal	Micron
Volume	43
Issue number	5
DOIs	https://doi.org/10.1016/j.micron.2012.01.002
State	Published - Apr 2012
Externally published	Yes

Keywords

Al matrix composite
Impact
Microstructure

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10.1016/j.micron.2012.01.002

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title = "Interfacial structure in TiB 2/Al composite after high speed impact",

abstract = "Interfacial structure in 55\%TiB 2/Al composite before and after high speed impact was investigated in detail. It is found that there is no stacking fault in original TiB 2 particle before fabrication or in TiB 2 particle in composite. However, after the composite is impacted by 1.2mm projectile with the velocity of 2.5km/s, stacking fault forms along the (0001) plane around the edge of TiB 2 particle and grows with a step-like epitaxial way, resulting from the high pressure of shock wave. At the bottom of crater in the target, Al matrix around the TiB 2 particle was molten and then oxidated, which results in the formation of Al xO 1-x (x<1) phase between TiB 2 particle and Al matrix. It is found that TiB 2 particle and Al xO 1-x phase combine well and have no reacted layer at the interface and there exists an orientation between two phases: [0 1 {\=1} 0]TiB2//[3 1 0]AlxO1-x, ({\=2} 1 1 0)TiB2//(0 0 2)AlxO1-x.",

keywords = "Al matrix composite, Impact, Microstructure",

author = "Q. Guo and Sun, \{D. L.\} and Jiang, \{L. T.\} and Wu, \{G. H.\} and Han, \{X. L.\}",

year = "2012",

month = apr,

doi = "10.1016/j.micron.2012.01.002",

language = "英语",

volume = "43",

pages = "688--693",

journal = "Micron",

issn = "0968-4328",

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number = "5",

}

TY - JOUR

T1 - Interfacial structure in TiB 2/Al composite after high speed impact

AU - Guo, Q.

AU - Sun, D. L.

AU - Jiang, L. T.

AU - Wu, G. H.

AU - Han, X. L.

PY - 2012/4

Y1 - 2012/4

N2 - Interfacial structure in 55%TiB 2/Al composite before and after high speed impact was investigated in detail. It is found that there is no stacking fault in original TiB 2 particle before fabrication or in TiB 2 particle in composite. However, after the composite is impacted by 1.2mm projectile with the velocity of 2.5km/s, stacking fault forms along the (0001) plane around the edge of TiB 2 particle and grows with a step-like epitaxial way, resulting from the high pressure of shock wave. At the bottom of crater in the target, Al matrix around the TiB 2 particle was molten and then oxidated, which results in the formation of Al xO 1-x (x<1) phase between TiB 2 particle and Al matrix. It is found that TiB 2 particle and Al xO 1-x phase combine well and have no reacted layer at the interface and there exists an orientation between two phases: [0 1 1̄ 0]TiB2//[3 1 0]AlxO1-x, (2̄ 1 1 0)TiB2//(0 0 2)AlxO1-x.

AB - Interfacial structure in 55%TiB 2/Al composite before and after high speed impact was investigated in detail. It is found that there is no stacking fault in original TiB 2 particle before fabrication or in TiB 2 particle in composite. However, after the composite is impacted by 1.2mm projectile with the velocity of 2.5km/s, stacking fault forms along the (0001) plane around the edge of TiB 2 particle and grows with a step-like epitaxial way, resulting from the high pressure of shock wave. At the bottom of crater in the target, Al matrix around the TiB 2 particle was molten and then oxidated, which results in the formation of Al xO 1-x (x<1) phase between TiB 2 particle and Al matrix. It is found that TiB 2 particle and Al xO 1-x phase combine well and have no reacted layer at the interface and there exists an orientation between two phases: [0 1 1̄ 0]TiB2//[3 1 0]AlxO1-x, (2̄ 1 1 0)TiB2//(0 0 2)AlxO1-x.

KW - Al matrix composite

KW - Impact

KW - Microstructure

UR - https://www.scopus.com/pages/publications/84858151542

U2 - 10.1016/j.micron.2012.01.002

DO - 10.1016/j.micron.2012.01.002

M3 - 文章

AN - SCOPUS:84858151542

SN - 0968-4328

VL - 43

SP - 688

EP - 693

JO - Micron

JF - Micron

IS - 5

ER -

Interfacial structure in TiB ₂/Al composite after high speed impact

Abstract

Keywords

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