Mechanics of nanosprings: Stiffness and Young's modulus of molybdenum-based nanocrystals

C Durkan; A Ilie; M S M Saifullah; M E Welland

doi:10.1063/1.1483927

Mechanics of nanosprings: Stiffness and Young's modulus of molybdenum-based nanocrystals

C Durkan, A Ilie, M S M Saifullah, M E Welland

Department of Physics

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

9 Citations (SciVal)

Abstract

We describe measurements of the stiffness and Young's modulus, Y of single crystals of molybdenum-based compounds. Atomic force microscopy is used first to image, and then to perform stiffness measurements on crystals which are growing up out of a substrate. Y is extracted by comparing the measured stiffness with that calculated from a continuum elasticity model of the crystals, whose experimentally indeterminate parameters are the Young's modulus and the geometry. We find a value for Y in the range 0.8-1.4 TPa, depending on the assumed geometry of the nanocrystal. As these crystals are essentially perfectly ordered on the micron scale, this opens the possibility of forming composite materials of immense strength. (C) 2002 American Institute of Physics.

Original language	English
Pages (from-to)	4244-4246
Number of pages	3
Journal	Applied Physics Letters
Volume	80
Issue number	22
DOIs	https://doi.org/10.1063/1.1483927
Publication status	Published - 2002

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ID number: ISI:000175771800054

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10.1063/1.1483927

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title = "Mechanics of nanosprings: Stiffness and Young's modulus of molybdenum-based nanocrystals",

abstract = "We describe measurements of the stiffness and Young's modulus, Y of single crystals of molybdenum-based compounds. Atomic force microscopy is used first to image, and then to perform stiffness measurements on crystals which are growing up out of a substrate. Y is extracted by comparing the measured stiffness with that calculated from a continuum elasticity model of the crystals, whose experimentally indeterminate parameters are the Young's modulus and the geometry. We find a value for Y in the range 0.8-1.4 TPa, depending on the assumed geometry of the nanocrystal. As these crystals are essentially perfectly ordered on the micron scale, this opens the possibility of forming composite materials of immense strength. (C) 2002 American Institute of Physics.",

author = "C Durkan and A Ilie and Saifullah, {M S M} and Welland, {M E}",

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doi = "10.1063/1.1483927",

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pages = "4244--4246",

journal = "Applied Physics Letters",

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TY - JOUR

T1 - Mechanics of nanosprings: Stiffness and Young's modulus of molybdenum-based nanocrystals

AU - Durkan, C

AU - Ilie, A

AU - Saifullah, M S M

AU - Welland, M E

N1 - ID number: ISI:000175771800054

PY - 2002

Y1 - 2002

N2 - We describe measurements of the stiffness and Young's modulus, Y of single crystals of molybdenum-based compounds. Atomic force microscopy is used first to image, and then to perform stiffness measurements on crystals which are growing up out of a substrate. Y is extracted by comparing the measured stiffness with that calculated from a continuum elasticity model of the crystals, whose experimentally indeterminate parameters are the Young's modulus and the geometry. We find a value for Y in the range 0.8-1.4 TPa, depending on the assumed geometry of the nanocrystal. As these crystals are essentially perfectly ordered on the micron scale, this opens the possibility of forming composite materials of immense strength. (C) 2002 American Institute of Physics.

AB - We describe measurements of the stiffness and Young's modulus, Y of single crystals of molybdenum-based compounds. Atomic force microscopy is used first to image, and then to perform stiffness measurements on crystals which are growing up out of a substrate. Y is extracted by comparing the measured stiffness with that calculated from a continuum elasticity model of the crystals, whose experimentally indeterminate parameters are the Young's modulus and the geometry. We find a value for Y in the range 0.8-1.4 TPa, depending on the assumed geometry of the nanocrystal. As these crystals are essentially perfectly ordered on the micron scale, this opens the possibility of forming composite materials of immense strength. (C) 2002 American Institute of Physics.

U2 - 10.1063/1.1483927

DO - 10.1063/1.1483927

M3 - Article

SN - 0003-6951

VL - 80

SP - 4244

EP - 4246

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 22

ER -

Mechanics of nanosprings: Stiffness and Young's modulus of molybdenum-based nanocrystals

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