Deformation mechanisms during indentation of nanoscale metallic/ceramic laminated composites

K. K. Chawla; P. L. Sun; T. Y. Lin; J. P. Chu; D. R P Singh; Nikhilesh Chawla; Y. L. Shen

Deformation mechanisms during indentation of nanoscale metallic/ceramic laminated composites

K. K. Chawla, P. L. Sun, T. Y. Lin, J. P. Chu, D. R P Singh, Nikhilesh Chawla, Y. L. Shen

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Examples of metallic laminates abound in history. Metallic laminates made of steel have been used to make Samurai swords. The famous iron pillar of Delhi consists of laminae of wrought iron. Other mundane examples include laminates copper/aluminum and copper/stainless laminates for use in kitchen utensils. More recently, researchers have been investigating multilayered composites consisting of metal/metal and metal/ceramic laminates. Extensive work on ultra high carbon steel (UHCS) laminates that have compositions very similar to ancient Damascus or Wootz steels, showed excellent impact properties. Results from our work on Al/SiC nanolaminates made by physical vapor deposition are presented. TEM analysis shows no reaction product at the interface between Al and SiC and a high degree of flexibility of brittle SiC layers under indentation. Cracking under indentation started at a depth of 1000 nm in SiC layers. This occurred at sites where kinks formed in SiC which appeared to occur at sites of shear localization.

Original language	English (US)
Title of host publication	ICCM International Conferences on Composite Materials
State	Published - 2009
Event	17th International Conference on Composite Materials, ICCM-17 - Edinburgh, United Kingdom Duration: Jul 27 2009 → Jul 31 2009

Other

Other	17th International Conference on Composite Materials, ICCM-17
Country	United Kingdom
City	Edinburgh
Period	7/27/09 → 7/31/09

Keywords

Al/SiC
Indentation
Laminates
Ultra high carbon steel

ASJC Scopus subject areas

Engineering(all)
Ceramics and Composites

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@inproceedings{d80b916c85304bbe91dd63878d86325c,

title = "Deformation mechanisms during indentation of nanoscale metallic/ceramic laminated composites",

abstract = "Examples of metallic laminates abound in history. Metallic laminates made of steel have been used to make Samurai swords. The famous iron pillar of Delhi consists of laminae of wrought iron. Other mundane examples include laminates copper/aluminum and copper/stainless laminates for use in kitchen utensils. More recently, researchers have been investigating multilayered composites consisting of metal/metal and metal/ceramic laminates. Extensive work on ultra high carbon steel (UHCS) laminates that have compositions very similar to ancient Damascus or Wootz steels, showed excellent impact properties. Results from our work on Al/SiC nanolaminates made by physical vapor deposition are presented. TEM analysis shows no reaction product at the interface between Al and SiC and a high degree of flexibility of brittle SiC layers under indentation. Cracking under indentation started at a depth of 1000 nm in SiC layers. This occurred at sites where kinks formed in SiC which appeared to occur at sites of shear localization.",

keywords = "Al/SiC, Indentation, Laminates, Ultra high carbon steel",

author = "Chawla, {K. K.} and Sun, {P. L.} and Lin, {T. Y.} and Chu, {J. P.} and Singh, {D. R P} and Nikhilesh Chawla and Shen, {Y. L.}",

year = "2009",

language = "English (US)",

booktitle = "ICCM International Conferences on Composite Materials",

note = "17th International Conference on Composite Materials, ICCM-17 ; Conference date: 27-07-2009 Through 31-07-2009",

}

TY - GEN

T1 - Deformation mechanisms during indentation of nanoscale metallic/ceramic laminated composites

AU - Chawla, K. K.

AU - Sun, P. L.

AU - Lin, T. Y.

AU - Chu, J. P.

AU - Singh, D. R P

AU - Chawla, Nikhilesh

AU - Shen, Y. L.

PY - 2009

Y1 - 2009

N2 - Examples of metallic laminates abound in history. Metallic laminates made of steel have been used to make Samurai swords. The famous iron pillar of Delhi consists of laminae of wrought iron. Other mundane examples include laminates copper/aluminum and copper/stainless laminates for use in kitchen utensils. More recently, researchers have been investigating multilayered composites consisting of metal/metal and metal/ceramic laminates. Extensive work on ultra high carbon steel (UHCS) laminates that have compositions very similar to ancient Damascus or Wootz steels, showed excellent impact properties. Results from our work on Al/SiC nanolaminates made by physical vapor deposition are presented. TEM analysis shows no reaction product at the interface between Al and SiC and a high degree of flexibility of brittle SiC layers under indentation. Cracking under indentation started at a depth of 1000 nm in SiC layers. This occurred at sites where kinks formed in SiC which appeared to occur at sites of shear localization.

AB - Examples of metallic laminates abound in history. Metallic laminates made of steel have been used to make Samurai swords. The famous iron pillar of Delhi consists of laminae of wrought iron. Other mundane examples include laminates copper/aluminum and copper/stainless laminates for use in kitchen utensils. More recently, researchers have been investigating multilayered composites consisting of metal/metal and metal/ceramic laminates. Extensive work on ultra high carbon steel (UHCS) laminates that have compositions very similar to ancient Damascus or Wootz steels, showed excellent impact properties. Results from our work on Al/SiC nanolaminates made by physical vapor deposition are presented. TEM analysis shows no reaction product at the interface between Al and SiC and a high degree of flexibility of brittle SiC layers under indentation. Cracking under indentation started at a depth of 1000 nm in SiC layers. This occurred at sites where kinks formed in SiC which appeared to occur at sites of shear localization.

KW - Al/SiC

KW - Indentation

KW - Laminates

KW - Ultra high carbon steel

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M3 - Conference contribution

BT - ICCM International Conferences on Composite Materials

T2 - 17th International Conference on Composite Materials, ICCM-17

Y2 - 27 July 2009 through 31 July 2009

ER -