Contact nucleation: In situ and ex situ observations of surface damaging

A.E.D.M. van der Heijden, M. Elwenspoek

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    Abstract

    To investigate the damaging done to a crystal surface potassium dihydrogen phosphate, KDP and potassium hydrogen phthalate, KAP) due to a crystal-rod contact, both ex situ and in situ experiments were performed and the impact sites studied either using an interference contrast microscope or a scanning electron microscope. An ex situ contact (performed in air) causes subsurface cracks and the breakage of small fragments (KDP) or the removal of thin plates (KAP) from the surface. In the former case the fragments have thicknesses roughly corresponding to the height of macrosteps present on the surface. Contacts during growth on KAP produced secondary nuclei; the crystal size distribution of these nuclei displays a log-normal behaviour.
    Original languageEnglish
    Pages (from-to)1087-1091
    Number of pages8
    JournalJournal of crystal growth
    Volume99
    Issue number3
    DOIs
    Publication statusPublished - Jan 1990

    Fingerprint

    Nucleation
    fragments
    nucleation
    potassium phosphates
    Crystals
    phthalates
    nuclei
    Potassium
    thin plates
    crystal surfaces
    crystals
    potassium
    rods
    cracks
    electron microscopes
    microscopes
    interference
    Contacts (fluid mechanics)
    scanning
    causes

    Cite this

    van der Heijden, A.E.D.M. ; Elwenspoek, M. / Contact nucleation : In situ and ex situ observations of surface damaging. In: Journal of crystal growth. 1990 ; Vol. 99, No. 3. pp. 1087-1091.
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    abstract = "To investigate the damaging done to a crystal surface potassium dihydrogen phosphate, KDP and potassium hydrogen phthalate, KAP) due to a crystal-rod contact, both ex situ and in situ experiments were performed and the impact sites studied either using an interference contrast microscope or a scanning electron microscope. An ex situ contact (performed in air) causes subsurface cracks and the breakage of small fragments (KDP) or the removal of thin plates (KAP) from the surface. In the former case the fragments have thicknesses roughly corresponding to the height of macrosteps present on the surface. Contacts during growth on KAP produced secondary nuclei; the crystal size distribution of these nuclei displays a log-normal behaviour.",
    author = "{van der Heijden}, A.E.D.M. and M. Elwenspoek",
    year = "1990",
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    doi = "10.1016/S0022-0248(08)80086-3",
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    Contact nucleation : In situ and ex situ observations of surface damaging. / van der Heijden, A.E.D.M.; Elwenspoek, M.

    In: Journal of crystal growth, Vol. 99, No. 3, 01.1990, p. 1087-1091.

    Research output: Contribution to journalArticleAcademicpeer-review

    TY - JOUR

    T1 - Contact nucleation

    T2 - In situ and ex situ observations of surface damaging

    AU - van der Heijden, A.E.D.M.

    AU - Elwenspoek, M.

    PY - 1990/1

    Y1 - 1990/1

    N2 - To investigate the damaging done to a crystal surface potassium dihydrogen phosphate, KDP and potassium hydrogen phthalate, KAP) due to a crystal-rod contact, both ex situ and in situ experiments were performed and the impact sites studied either using an interference contrast microscope or a scanning electron microscope. An ex situ contact (performed in air) causes subsurface cracks and the breakage of small fragments (KDP) or the removal of thin plates (KAP) from the surface. In the former case the fragments have thicknesses roughly corresponding to the height of macrosteps present on the surface. Contacts during growth on KAP produced secondary nuclei; the crystal size distribution of these nuclei displays a log-normal behaviour.

    AB - To investigate the damaging done to a crystal surface potassium dihydrogen phosphate, KDP and potassium hydrogen phthalate, KAP) due to a crystal-rod contact, both ex situ and in situ experiments were performed and the impact sites studied either using an interference contrast microscope or a scanning electron microscope. An ex situ contact (performed in air) causes subsurface cracks and the breakage of small fragments (KDP) or the removal of thin plates (KAP) from the surface. In the former case the fragments have thicknesses roughly corresponding to the height of macrosteps present on the surface. Contacts during growth on KAP produced secondary nuclei; the crystal size distribution of these nuclei displays a log-normal behaviour.

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