書誌事項
- タイトル別名
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- Ultrasonic Testing using Powder Couplings and its Application to Engineering Plastics
- フンタイ カップリング オ モチイタ チョウオンパタンショウ シケンホウ ト ソノ エンジニアプラスチック エ ノ オウヨウ
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抄録
A new powder immersion method has been developed where the water of conventional immersion testing methods is replaced with powder. In this method, ultrasonic testing is carried out on test pieces while immersing them in pressurized powder. Even though the powder usually prevents the transmission of elastic waves, they can be transmitted through it under pressurized conditions. In addition, the acoustic impedance can be controlled by controlling the pressure applied to the powder. We were able to match the acoustic impedance of the powder and the test pieces by controlling the pressure of the powder. The advantage of this is that when the acoustic impedance of the powder and the test pieces match, the reflection of the electric waves from the surface of the test piece is greatly reduced. We applied this powder immersion method to the testing of engineering plastics, and the echos from the surfaces of the test pieces almost completely disappeared by controlling the pressure of the powder. This method is not confined to engineering plastics and can be applied to other materials.
収録刊行物
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- 非破壊検査
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非破壊検査 62 (5), 227-232, 2013
一般社団法人 日本非破壊検査協会
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詳細情報 詳細情報について
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- CRID
- 1390001206494516608
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- NII論文ID
- 10031170826
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- NII書誌ID
- AN00208370
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- NDL書誌ID
- 024648281
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- ISSN
- 03675866
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可