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DTIC ADA107388: Laser Photoacoustic Technique for NDE. |
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by Defense Technical Information Center |
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The physics of the scanning photoacoustic microscopy |
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(SPAM) has been developed. SPAM has been applied to NDE |
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problems in high performance ceramics, and has been shown |
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to be potentially useful for NDE in other solids, such as |
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metals and semiconductors. One of the most important |
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problems in nondestructive evaluation (NDE) has been that |
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of detecting small (10 micron - 100 micron) flaws which |
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lie just beneath the surface of an opaque solid. This |
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problem is particularly acute for the technologically |
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important, but brittle, ceramic materials, SiC and Si3N4. |
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The objective of this program was to investigate and |
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develop an entirely new NDE experimental technique, which |
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we have named scanning photoacoustic microscopy (SPAM), |
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and to test its applicability for subsurface NDE of |
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ceramics. |
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Date Published: 2017-12-26 06:24:57 |
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Identifier: DTIC_ADA107388 |
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Item Size: 4544668 |
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Language: english |
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Media Type: texts |
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# Topics |
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DTIC Archive; Thomas,R L ; WAYNE STA... |
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