Characterization of stress at a ceramic/metal jointed interface by the V(Z) technique of scanning acoustic microscopy

Chiaki Miyasaka, Bernhard R. Tittmann, Shun Ichiro Tanaka

Research output: Contribution to journalArticle

Abstract

The interface and its vicinity of a ceramic/metal joint has been investigated with the help of the well-known V(z) curve technique of scanning acoustic microscopy. As is well known that the process of heating and then cooling dissimilar materials introduces considerable stress at and near the interface. In this report, the relationship between the residual stress and the surface wave velocity distributions was obtained first with the help of X-ray diffraction. Then, delaminations were introduced at the interface by the use of a micro-Vickers indentation apparatus. The V(z) curve technique was then used again to measure values for the surface acoustic wave velocity along the interface. The defective specimens showed significantly different patterns of residual stress. Thus, this study presents useful guidelines in discriminating between good and defective ceramic/metal joints with scanning acoustic microscopy emerging as a tool.

Original languageEnglish (US)
Pages (from-to)57-64
Number of pages8
JournalAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume429
StatePublished - 2000

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Cermets
Surface waves
Residual stresses
Dissimilar materials
Acoustic wave velocity
Velocity distribution
Indentation
Delamination
Cooling
Heating
X ray diffraction
Acoustic Microscopy

All Science Journal Classification (ASJC) codes

  • Industrial and Manufacturing Engineering
  • Mechanical Engineering

Cite this

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abstract = "The interface and its vicinity of a ceramic/metal joint has been investigated with the help of the well-known V(z) curve technique of scanning acoustic microscopy. As is well known that the process of heating and then cooling dissimilar materials introduces considerable stress at and near the interface. In this report, the relationship between the residual stress and the surface wave velocity distributions was obtained first with the help of X-ray diffraction. Then, delaminations were introduced at the interface by the use of a micro-Vickers indentation apparatus. The V(z) curve technique was then used again to measure values for the surface acoustic wave velocity along the interface. The defective specimens showed significantly different patterns of residual stress. Thus, this study presents useful guidelines in discriminating between good and defective ceramic/metal joints with scanning acoustic microscopy emerging as a tool.",
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Characterization of stress at a ceramic/metal jointed interface by the V(Z) technique of scanning acoustic microscopy. / Miyasaka, Chiaki; Tittmann, Bernhard R.; Tanaka, Shun Ichiro.

In: American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, Vol. 429, 2000, p. 57-64.

Research output: Contribution to journalArticle

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T1 - Characterization of stress at a ceramic/metal jointed interface by the V(Z) technique of scanning acoustic microscopy

AU - Miyasaka, Chiaki

AU - Tittmann, Bernhard R.

AU - Tanaka, Shun Ichiro

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