National Institute of Standards and Technology, Acquisition and Assistance Division, Building 301, Room Bll7, Gaithersburg, MD 20899

B -- STUDY OF MAGNETIZATION OF HIGH TEMPERATURE SUPERCONDUCTORS SOL 52SBNB5C8599 POC Catherine Poole (301) 975-4154 POC Pauline Mallgrave (301) 975-6330 The NIST intends to enter into a contract with Dr. Marina Turchinskaya of Gaithersburg, Maryland under the authority of 41 USC 253(c)(1)--Only one responsible source, to provide research services and technical reports in the determination of magnetization of high temperature superconductors as a function of temperature and applied magnetic field. The Contractor shall conduct experiments using a high resolution magneto-optical imaging technique (MOT) to determine the effect of microstructure on flux flow in multifilamentary BSCCO wires; conduct MOT studies on YBCO single crystals containing individual twin-boundaries and analyze the data by means of an image analysis system to determine the effect of twin boundaries on flux flow; conduct MOT studies on YBCO single crystals containing nanoindentations and correlate the resulting flux maps with the distribution of nanoindentations to determine the effect of the indentations on flux flow; and conduct MOT studies on BSCCO single crystals to determine the microscopic magnetization and demagnetization mechanisms. Dr. Turchinskaya is a nationally-known expert in the measurement of magnetization dynamics of high temperature superconductors by magneto-optical imaging and conventional SQUID magnetometry techniques, and is uniquely qualified to perform under this contract. She has participated in the installation of a novel MOT system at NIST, the first such instrument to be set up in the U.S. She has participated in developing procedures for operating the MOT system and an image analysis system used to analyze the MOT data. Her recent MOT studies of YBCO and BSCCO have been published in referred journals. The Government anticipates award of a firm-fixed price contract, with period of performance of one year from date of award. This notice of intent is not a request for competitive proposals. Responses shall contain sufficient documentation to establish a bonafide capability to fulfill the requirement. A solicitation is not available. See Note 22. (0006)

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