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Non-destructive evaluation of green-state ceramics using micromachined air-coupled capacitance transducers
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UNSPECIFIED (1998) Non-destructive evaluation of green-state ceramics using micromachined air-coupled capacitance transducers. In: 17th Ultrasonics International Conference (UI 97), TECH UNIV DELFT, DELFT, NETHERLANDS, JUL 02-04, 1997. Published in: ULTRASONICS, 36 (1-5). pp. 121-126. ISSN 0041-624X.
Research output not available from this repository, contact author.Abstract
Air-coupled ultrasound has been used to study the manufacture of ceramic components by both slip casting and injection moulding. A capacitance transducer, designed to operate at high temperatures, was used as both a source and receiver with a 500 kHz bandwidth to pass ultrasound through 3 mm thick green-state injection-moulded and slip-cast samples of silicon nitride. The transducers were C-scanned over the entire area of the sample in order to locate density changes which could lead to problems in the firing stage. Additionally: through-transmitted waveforms at 150 degrees C were obtained, indicating that the technique may be useful for performing measurements at high temperatures. (C) 1998 Elsevier Science B.V.
Item Type: | Conference Item (UNSPECIFIED) | ||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) R Medicine |
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Journal or Publication Title: | ULTRASONICS | ||||
Publisher: | ELSEVIER SCIENCE BV | ||||
ISSN: | 0041-624X | ||||
Official Date: | February 1998 | ||||
Dates: |
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Volume: | 36 | ||||
Number: | 1-5 | ||||
Number of Pages: | 6 | ||||
Page Range: | pp. 121-126 | ||||
Publication Status: | Published | ||||
Title of Event: | 17th Ultrasonics International Conference (UI 97) | ||||
Location of Event: | TECH UNIV DELFT, DELFT, NETHERLANDS | ||||
Date(s) of Event: | JUL 02-04, 1997 |
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