Theoretical approach to contrast mechanism for U-AFM

C. Miyasaka; B. R. Tittmann; T. Adachi; A. Yamaji

doi:10.1115/PVP2002-1636

Theoretical approach to contrast mechanism for U-AFM

C. Miyasaka, B. R. Tittmann, T. Adachi, A. Yamaji

Research output: Contribution to journal › Conference article › peer-review

Abstract

When the Ultrasonic-Atomic Force Microscope (U-AFM) is used to form an image of a surface of a specimen having discontinuities, contrast of the specimen in the image is usually stronger than that of an image formed by a conventional Atomic Force Microscope (AFM). In this article, the mechanism of the contrast of the image obtained by the U-AFM was explained by theoretical analysis. A ceramic and metal jointed bar (Steel/Cu/Si₃N₄) was selected as a specimen for this study. The specimen was located on the surface of a disc transducer generating ultrasonic waves up to 500 KHz, and was vibrated, wherein its first resonant frequency was 133.43 kHz. Both stress and displacement of the specimen were analyzed by classical beam theory and the two-dimensional elasto-dynamic theory. Experimental U-AFM imaging analyses were also carried out to compare the results.

Original language	English (US)
Pages (from-to)	63-67
Number of pages	5
Journal	American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume	450
DOIs	https://doi.org/10.1115/PVP2002-1636
State	Published - 2002
Event	The 2002 ASME Pressure Vessels and Piping Conference: NDE Engineering Applications - Vancouver, BC, Canada Duration: Aug 5 2002 → Aug 9 2002

All Science Journal Classification (ASJC) codes

Mechanical Engineering

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10.1115/PVP2002-1636

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title = "Theoretical approach to contrast mechanism for U-AFM",

abstract = "When the Ultrasonic-Atomic Force Microscope (U-AFM) is used to form an image of a surface of a specimen having discontinuities, contrast of the specimen in the image is usually stronger than that of an image formed by a conventional Atomic Force Microscope (AFM). In this article, the mechanism of the contrast of the image obtained by the U-AFM was explained by theoretical analysis. A ceramic and metal jointed bar (Steel/Cu/Si3N4) was selected as a specimen for this study. The specimen was located on the surface of a disc transducer generating ultrasonic waves up to 500 KHz, and was vibrated, wherein its first resonant frequency was 133.43 kHz. Both stress and displacement of the specimen were analyzed by classical beam theory and the two-dimensional elasto-dynamic theory. Experimental U-AFM imaging analyses were also carried out to compare the results.",

author = "C. Miyasaka and Tittmann, {B. R.} and T. Adachi and A. Yamaji",

year = "2002",

doi = "10.1115/PVP2002-1636",

language = "English (US)",

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journal = "American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP",

issn = "0277-027X",

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note = "The 2002 ASME Pressure Vessels and Piping Conference: NDE Engineering Applications ; Conference date: 05-08-2002 Through 09-08-2002",

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T1 - Theoretical approach to contrast mechanism for U-AFM

AU - Miyasaka, C.

AU - Tittmann, B. R.

AU - Adachi, T.

AU - Yamaji, A.

PY - 2002

Y1 - 2002

N2 - When the Ultrasonic-Atomic Force Microscope (U-AFM) is used to form an image of a surface of a specimen having discontinuities, contrast of the specimen in the image is usually stronger than that of an image formed by a conventional Atomic Force Microscope (AFM). In this article, the mechanism of the contrast of the image obtained by the U-AFM was explained by theoretical analysis. A ceramic and metal jointed bar (Steel/Cu/Si3N4) was selected as a specimen for this study. The specimen was located on the surface of a disc transducer generating ultrasonic waves up to 500 KHz, and was vibrated, wherein its first resonant frequency was 133.43 kHz. Both stress and displacement of the specimen were analyzed by classical beam theory and the two-dimensional elasto-dynamic theory. Experimental U-AFM imaging analyses were also carried out to compare the results.

AB - When the Ultrasonic-Atomic Force Microscope (U-AFM) is used to form an image of a surface of a specimen having discontinuities, contrast of the specimen in the image is usually stronger than that of an image formed by a conventional Atomic Force Microscope (AFM). In this article, the mechanism of the contrast of the image obtained by the U-AFM was explained by theoretical analysis. A ceramic and metal jointed bar (Steel/Cu/Si3N4) was selected as a specimen for this study. The specimen was located on the surface of a disc transducer generating ultrasonic waves up to 500 KHz, and was vibrated, wherein its first resonant frequency was 133.43 kHz. Both stress and displacement of the specimen were analyzed by classical beam theory and the two-dimensional elasto-dynamic theory. Experimental U-AFM imaging analyses were also carried out to compare the results.

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VL - 450

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EP - 67

JO - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP

JF - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP

T2 - The 2002 ASME Pressure Vessels and Piping Conference: NDE Engineering Applications

Y2 - 5 August 2002 through 9 August 2002

ER -

Theoretical approach to contrast mechanism for U-AFM

Abstract

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