Accession Number : ADA574497


Title :   A Fully Integrated Materials Framework for Enabling the Wireless Detection of Micro-defects in Aging and Battle-worn Structures (Year 1)


Descriptive Note : Memorandum rept.


Corporate Author : ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD


Personal Author(s) : Toonen, Ryan C ; Fu, Richard X ; Ivill, Mathew P ; Hirsch, S G ; Cole, Melanie W ; Zheleva, Tsvetanka S


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA574497


Report Date : Apr 2011


Pagination or Media Count : 42


Abstract : We present first-year results from a two-year study on a novel, inexpensive, passive, wireless solution for performing nondestructive evaluation on the structural integrity of aging aircraft. Compact, frequency-selective, backscatter transponders have been designed for operation in the industrial, scientific, and medical (ISM) frequency bands. These circuits rely on a novel metal-insulator-metal (MIM) complimentary split ring resonator (CSRR) design incorporating a multilayered substrate. We have performed initial evaluations on the electrical and electro-acoustic properties of barium strontium titanate (BST) and lead zirconate titanate (PZT), respectively. Additionally, results from the development of a process-compatible integrated resistor and a novel through-wafer interconnect technology are presented.


Descriptors :   *AGING(MATERIALS) , *AIRCRAFT , *MATERIALS , *STRUCTURES , BARIUM , CRYSTALLIZATION , LEAD ZIRCONATE TITANATES , PHASE SHIFT , RESONATORS , SPUTTERING , STRONTIUM , STRUCTURAL INTEGRITY , SUBSTRATES , THIN FILMS , TOPOLOGY , TRANSPONDERS , X RAY DIFFRACTION


Subject Categories : Aircraft
      Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE