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MICROSCORPY

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 4013
Amount: $49,980.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Timeline
Solicitation Year: N/A
Award Year: 1986
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
400 Hester St
San Leandro, CA 94577
United States
DUNS: N/A
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 DR B W MAXFIELD
 (415) 568-7720
Business Contact
Phone: () -
Research Institution
N/A
Abstract

IT IS CLEAR FROM RECENT PUBLISHED ARTICLES THAT THE GENERATION OF SURFACE WAVES MUST BE CONSIDERED WHEN INTERPRETING MEASURMENTS MADE USING A WIDE-ANGLE, FOCUSED-BEAM, REFLECTION-MODE ACOUSTIC MICROSCOPE. THERE EXISTS MUCH NEW AND USEFUL INFORMATION IN THESE SURFACE WAVES AND UNDERSTANDING THEM IN A MORE QUANTITATIVE MANNER WOULD OPEN NEW AVENUES IN THE NONDESTRUCTIVE EVALUATION OF SURFACE AND NEAR-SURFACE CHARACTERISTICS. IN PARTICULAR, THESE SURFACE WAVES WILL BE ABLE TO MEASURE THE THICKNESS OF THIN COATINGS, MAP CHANGES IN SURFACE RESIDUAL STRESSES AND DETECT AND QUANTIFY SMALL FATIGUE CRACKS. THIS PROPOSAL DESCRIBES HOW MEASUREMENTS ON SPECIMENS THAT REPRESENT FOUR DISTINCT CLASSES OF MATERIALS PROBLEMS SHOULD LEAD TO A ROTATIONAL PHASE II APPROACH TO UNDERSTANDING THE SURFACE WAVE ROLE IN ACOUSTIC MICROSCOPE MEASUREMENTS. THIS PROPOSAL ALSO SEEKS TO DEVELOP A HIGHLY QUANTITATIVE DESCRIPTION OF THE COMPLEX BUT HIGHLY REPRODUCIBLE ACOUSTIC MATERIALS SIGNATURE (AMS) SO THAT A MORE QUANTITATIVE DESCRIPTION OF MATERIALS PROPERTIES CAN BE OBTAINED.

* Information listed above is at the time of submission. *

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