Is there a critical size in nano grained metals for ductile to brittle transition?

Aman Haque; Taher Saif

doi:10.1115/nano2004-46097

Is there a critical size in nano grained metals for ductile to brittle transition?

Aman Haque
, Taher Saif

Mechanical Engineering

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

Abstract

The role of grain size and boundaries in determining the mechanical behavior of metals, such as elasticity and yielding was investigated. A novel micro apparatus that allows uniaxial tensile testing of free standing nano scale metal specimens as thin as 30nm was developed. The stress-strain response of sputter deposited aluminum films with thickness 30-200nm with the corresponding grain size of 10-100nm was measured using the apparatus. The results show that as grain size is reduced from micro scale, a critical dimension is reached when the size is too small for dislocations to exist, but no small enough for grain boundary mechanisms to fully contribute to deformation.

Original language	English (US)
Title of host publication	Proceedings of the 3rd ASME Integrated Nanosystems Conference - Design, Synthesis, and Applications
Publisher	American Society of Mechanical Engineers
Pages	93-94
Number of pages	2
ISBN (Print)	0791841774, 9780791841778
DOIs	https://doi.org/10.1115/nano2004-46097
State	Published - 2004
Event	3rd ASME Integrated Nanosystems Conference - Design, Synthesis, and Applications - Pasadena, CA, United States Duration: Sep 22 2004 → Sep 24 2004

Publication series

Name	Proceedings of the 3rd ASME Integrated Nanosystems Conference - Design, Synthesis, and Applications

Other

Other	3rd ASME Integrated Nanosystems Conference - Design, Synthesis, and Applications
Country/Territory	United States
City	Pasadena, CA
Period	9/22/04 → 9/24/04

All Science Journal Classification (ASJC) codes

General Engineering

Access to Document

10.1115/nano2004-46097

Cite this

Haque, A., & Saif, T. (2004). Is there a critical size in nano grained metals for ductile to brittle transition? In Proceedings of the 3rd ASME Integrated Nanosystems Conference - Design, Synthesis, and Applications (pp. 93-94). Article NANO2004-46097 (Proceedings of the 3rd ASME Integrated Nanosystems Conference - Design, Synthesis, and Applications). American Society of Mechanical Engineers. https://doi.org/10.1115/nano2004-46097

Haque, Aman ; Saif, Taher. / Is there a critical size in nano grained metals for ductile to brittle transition?. Proceedings of the 3rd ASME Integrated Nanosystems Conference - Design, Synthesis, and Applications. American Society of Mechanical Engineers, 2004. pp. 93-94 (Proceedings of the 3rd ASME Integrated Nanosystems Conference - Design, Synthesis, and Applications).

@inproceedings{41e18037798c4ebc896260b7c209e214,

title = "Is there a critical size in nano grained metals for ductile to brittle transition?",

abstract = "The role of grain size and boundaries in determining the mechanical behavior of metals, such as elasticity and yielding was investigated. A novel micro apparatus that allows uniaxial tensile testing of free standing nano scale metal specimens as thin as 30nm was developed. The stress-strain response of sputter deposited aluminum films with thickness 30-200nm with the corresponding grain size of 10-100nm was measured using the apparatus. The results show that as grain size is reduced from micro scale, a critical dimension is reached when the size is too small for dislocations to exist, but no small enough for grain boundary mechanisms to fully contribute to deformation.",

author = "Aman Haque and Taher Saif",

year = "2004",

doi = "10.1115/nano2004-46097",

language = "English (US)",

isbn = "0791841774",

series = "Proceedings of the 3rd ASME Integrated Nanosystems Conference - Design, Synthesis, and Applications",

publisher = "American Society of Mechanical Engineers",

pages = "93--94",

booktitle = "Proceedings of the 3rd ASME Integrated Nanosystems Conference - Design, Synthesis, and Applications",

note = "3rd ASME Integrated Nanosystems Conference - Design, Synthesis, and Applications ; Conference date: 22-09-2004 Through 24-09-2004",

}

Haque, A & Saif, T 2004, Is there a critical size in nano grained metals for ductile to brittle transition? in Proceedings of the 3rd ASME Integrated Nanosystems Conference - Design, Synthesis, and Applications., NANO2004-46097, Proceedings of the 3rd ASME Integrated Nanosystems Conference - Design, Synthesis, and Applications, American Society of Mechanical Engineers, pp. 93-94, 3rd ASME Integrated Nanosystems Conference - Design, Synthesis, and Applications, Pasadena, CA, United States, 9/22/04. https://doi.org/10.1115/nano2004-46097

Is there a critical size in nano grained metals for ductile to brittle transition? / Haque, Aman; Saif, Taher.
Proceedings of the 3rd ASME Integrated Nanosystems Conference - Design, Synthesis, and Applications. American Society of Mechanical Engineers, 2004. p. 93-94 NANO2004-46097 (Proceedings of the 3rd ASME Integrated Nanosystems Conference - Design, Synthesis, and Applications).

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