DOI: 10.1063/1.116939. The role of atomic size asperities in the mechanical deformation of nanocontacts

The role of atomic size asperities in the mechanical deformation of nanocontacts

10.1063/1.116939

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

The processes leading to permanent deformation when two bodies make contact are important in adhesion, wear, and tribology. We present nanoindentation results for GaAs showing that impact kinetic energies of only a few eV can lead to a dramatic reduction in the load required to cause permanent deformation when compared to the load required for impact energies of less than 1 eV. We explain this extreme sensitivity to the initial contact in terms of atomic size asperities which must be deformed if defects are to be generated on impact. Lower kinetic energies do not destroy the asperities, and dislocations must be nucleated later in the indentation cycle.

Bibliography

Mann, A. B., & Pethica, J. B. (1996). The role of atomic size asperities in the mechanical deformation of nanocontacts. Applied Physics Letters, 69(7), 907â909.

Authors 2

A. B. Mann (first)
J. B. Pethica (additional)

References 15 Referenced 58

{'key': '2024020311161799800_r1', 'first-page': '593', 'article-title': 'Philos. Mag. A', 'volume': '48', 'year': '1983'} / Philos. Mag. A (1983)
{'key': '2024020311161799800_r2', 'first-page': '450', 'article-title': 'J. Mater. Res.', 'volume': '7', 'year': '1992'} / J. Mater. Res. (1992)
{'key': '2024020311161799800_r3', 'first-page': '1564', 'article-title': 'J. Mater. Res.', 'volume': '7', 'year': '1992'} / J. Mater. Res. (1992)
{'key': '2024020311161799800_r4'}
{'key': '2024020311161799800_r5', 'first-page': '61', 'article-title': 'Phys. Scr. T', 'volume': '19', 'year': '1987'} / Phys. Scr. T (1987)
{'key': '2024020311161799800_r6', 'first-page': '13', 'article-title': 'Mater. Res. Soc. Symp. Proc.', 'volume': '130', 'year': '1989'} / Mater. Res. Soc. Symp. Proc. (1989)
{'key': '2024020311161799800_r7'}
{'key': '2024020311161799800_r8', 'first-page': '327', 'article-title': 'Proc. R. Soc. London, Ser. A', 'volume': '345', 'year': '1975'} / Proc. R. Soc. London, Ser. A (1975)
{'key': '2024020311161799800_r9', 'first-page': '301', 'article-title': 'Proc. R. Soc. London, Ser. A', 'volume': '324', 'year': '1971'} / Proc. R. Soc. London, Ser. A (1971)
{'key': '2024020311161799800_r10'}
{'key': '2024020311161799800_r11'}
{'key': '2024020311161799800_r12', 'first-page': '5529', 'article-title': 'J. Mater. Sci.', 'volume': '29', 'year': '1994'} / J. Mater. Sci. (1994)
{'key': '2024020311161799800_r13', 'first-page': '271', 'article-title': 'Mater. Res. Soc. Symp. Proc.', 'volume': '356', 'year': '1995'} / Mater. Res. Soc. Symp. Proc. (1995)
{'key': '2024020311161799800_r14'}
{'key': '2024020311161799800_r15', 'first-page': '1569', 'article-title': 'Acta Metall. Mater.', 'volume': '43', 'year': '1995'} / Acta Metall. Mater. (1995)

Dates

Type	When
Created	23 years ago (July 26, 2002, 8:28 a.m.)
Deposited	1 year, 6 months ago (Feb. 3, 2024, 6:16 a.m.)
Indexed	3 months ago (May 21, 2025, 4:25 p.m.)
Issued	29 years ago (Aug. 12, 1996)
Published	29 years ago (Aug. 12, 1996)
Published Print	29 years ago (Aug. 12, 1996)

Funders 0

None

BibTeX

@article{Mann_1996, title={The role of atomic size asperities in the mechanical deformation of nanocontacts}, volume={69}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.116939}, DOI={10.1063/1.116939}, number={7}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Mann, A. B. and Pethica, J. B.}, year={1996}, month=aug, pages={907–909} }

JSON

{
  "indexed": {
    "date-parts": [
      [
        2025,
        5,
        21
      ]
    ],
    "date-time": "2025-05-21T20:25:00Z",
    "timestamp": 1747859100109
  },
  "reference-count": 15,
  "publisher": "AIP Publishing",
  "issue": "7",
  "content-domain": {
    "domain": [
      "pubs.aip.org"
    ],
    "crossmark-restriction": true
  },
  "published-print": {
    "date-parts": [
      [
        1996,
        8,
        12
      ]
    ]
  },
  "abstract": "<jats:p>The processes leading to permanent deformation when two bodies make contact are important in adhesion, wear, and tribology. We present nanoindentation results for GaAs showing that impact kinetic energies of only a few eV can lead to a dramatic reduction in the load required to cause permanent deformation when compared to the load required for impact energies of less than 1 eV. We explain this extreme sensitivity to the initial contact in terms of atomic size asperities which must be deformed if defects are to be generated on impact. Lower kinetic energies do not destroy the asperities, and dislocations must be nucleated later in the indentation cycle.</jats:p>",
  "DOI": "10.1063/1.116939",
  "type": "journal-article",
  "created": {
    "date-parts": [
      [
        2002,
        7,
        26
      ]
    ],
    "date-time": "2002-07-26T12:28:50Z",
    "timestamp": 1027686530000
  },
  "page": "907-909",
  "update-policy": "http://dx.doi.org/10.1063/aip-crossmark-policy-page",
  "source": "Crossref",
  "is-referenced-by-count": 58,
  "title": "The role of atomic size asperities in the mechanical deformation of nanocontacts",
  "prefix": "10.1063",
  "volume": "69",
  "author": [
    {
      "given": "A. B.",
      "family": "Mann",
      "sequence": "first",
      "affiliation": [
        {
          "name": "Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom"
        }
      ]
    },
    {
      "given": "J. B.",
      "family": "Pethica",
      "sequence": "additional",
      "affiliation": [
        {
          "name": "Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom"
        }
      ]
    }
  ],
  "member": "317",
  "reference": [
    {
      "key": "2024020311161799800_r1",
      "first-page": "593",
      "article-title": "Philos. Mag. A",
      "volume": "48",
      "year": "1983"
    },
    {
      "key": "2024020311161799800_r2",
      "first-page": "450",
      "article-title": "J. Mater. Res.",
      "volume": "7",
      "year": "1992"
    },
    {
      "key": "2024020311161799800_r3",
      "first-page": "1564",
      "article-title": "J. Mater. Res.",
      "volume": "7",
      "year": "1992"
    },
    {
      "key": "2024020311161799800_r4"
    },
    {
      "key": "2024020311161799800_r5",
      "first-page": "61",
      "article-title": "Phys. Scr. T",
      "volume": "19",
      "year": "1987"
    },
    {
      "key": "2024020311161799800_r6",
      "first-page": "13",
      "article-title": "Mater. Res. Soc. Symp. Proc.",
      "volume": "130",
      "year": "1989"
    },
    {
      "key": "2024020311161799800_r7"
    },
    {
      "key": "2024020311161799800_r8",
      "first-page": "327",
      "article-title": "Proc. R. Soc. London, Ser. A",
      "volume": "345",
      "year": "1975"
    },
    {
      "key": "2024020311161799800_r9",
      "first-page": "301",
      "article-title": "Proc. R. Soc. London, Ser. A",
      "volume": "324",
      "year": "1971"
    },
    {
      "key": "2024020311161799800_r10"
    },
    {
      "key": "2024020311161799800_r11"
    },
    {
      "key": "2024020311161799800_r12",
      "first-page": "5529",
      "article-title": "J. Mater. Sci.",
      "volume": "29",
      "year": "1994"
    },
    {
      "key": "2024020311161799800_r13",
      "first-page": "271",
      "article-title": "Mater. Res. Soc. Symp. Proc.",
      "volume": "356",
      "year": "1995"
    },
    {
      "key": "2024020311161799800_r14"
    },
    {
      "key": "2024020311161799800_r15",
      "first-page": "1569",
      "article-title": "Acta Metall. Mater.",
      "volume": "43",
      "year": "1995"
    }
  ],
  "container-title": "Applied Physics Letters",
  "original-title": [],
  "language": "en",
  "link": [
    {
      "URL": "https://pubs.aip.org/aip/apl/article-pdf/69/7/907/18520941/907_1_online.pdf",
      "content-type": "application/pdf",
      "content-version": "vor",
      "intended-application": "syndication"
    },
    {
      "URL": "https://pubs.aip.org/aip/apl/article-pdf/69/7/907/18520941/907_1_online.pdf",
      "content-type": "unspecified",
      "content-version": "vor",
      "intended-application": "similarity-checking"
    }
  ],
  "deposited": {
    "date-parts": [
      [
        2024,
        2,
        3
      ]
    ],
    "date-time": "2024-02-03T11:16:20Z",
    "timestamp": 1706958980000
  },
  "score": 1,
  "resource": {
    "primary": {
      "URL": "https://pubs.aip.org/apl/article/69/7/907/520719/The-role-of-atomic-size-asperities-in-the"
    }
  },
  "subtitle": [],
  "short-title": [],
  "issued": {
    "date-parts": [
      [
        1996,
        8,
        12
      ]
    ]
  },
  "references-count": 15,
  "journal-issue": {
    "issue": "7",
    "published-print": {
      "date-parts": [
        [
          1996,
          8,
          12
        ]
      ]
    }
  },
  "URL": "http://dx.doi.org/10.1063/1.116939",
  "relation": {},
  "ISSN": [
    "0003-6951",
    "1077-3118"
  ],
  "subject": [],
  "published-other": {
    "date-parts": [
      [
        1996,
        8,
        12
      ]
    ]
  },
  "published": {
    "date-parts": [
      [
        1996,
        8,
        12
      ]
    ]
  }
}