Nondestructive evaluation of defects in conductive and non-conductive materials by high-frequency signal transmission characteristics technique

Kazuhiro Ogawa, Toshimitsu Baba, Mikiko Suzuki, Tetsuo Shoji

Research output: Contribution to journalConference articlepeer-review

Abstract

A nondestructive inspection (NDI) technique that utilizes high-frequency signal transmission characteristics for more reliable and faster defect detection was discussed. The technique was also used for quantitative evaluation of defects in metal and ceramic materials. The evaluation of defect was accomplished by measuring the amplitude ratio of the incident signal and the reflected signal of high frequency current. Results shows that the technique is valuable for ferro-magnetic and para-magnetic materials contaning fatigue cracks.

Original languageEnglish
Pages (from-to)1712-1718
Number of pages7
JournalKey Engineering Materials
Volume270-273
Issue numberIII
DOIs
Publication statusPublished - 2004 Jan 1
EventProceedings of the 11th Asian Pacific Conference on Nondestructive Testing - Jeju Island, Korea, Republic of
Duration: 2003 Nov 32003 Nov 7

Keywords

  • Ceramics
  • Fatigue Cracks
  • Ferro- and para-magnetic materials
  • High-frequency signal transmission characteristics
  • Natural Cracks

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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