"IGF::OT::IGF" NASA LANGLEY RESEARCH CENTER HAS A NEED TO ANALYZE NANOPARTICLES AND NANOTUBES PRODUCED BY V…

Public award description

"IGF::OT::IGF" NASA LANGLEY RESEARCH CENTER HAS A NEED TO ANALYZE NANOPARTICLES AND NANOTUBES PRODUCED BY VARIOUS METHODS INCLUDING CHEMICAL SYNTHESIS AND CHEMICAL VAPOR DEPOSITION. THE SERVICE REQUIRED TO ANALYZE THESE NANOPARTICLES AND NANOTUBES CONSISTS OF HIGH-RESOLUTION TRANSMISSION ELECTRON MICROSCOPY (HR-TEM) FOR STRUCTURAL ANALYSIS, AND IN-SITU ENERGY DISPERSIVE SPECTROSCOPY FOR CHEMICAL ANALYSIS (EDS). THE HR-TEM ANALYSES REQUIRE A POINT RESOLUTION OF 0.23 NM, LATTICE RESOLUTION OF 0.1 NM, AND STEM (SCANNING TEM) RESOLUTION OF 2 NM. THE ANALYSES REQUIRE A 5-AXES MICROACTIVE GONIOMETER STAGE WITH SPECIMEN TILTING CAPABILITY OF 35 AND 30 ON X AND Y DIRECTIONS, RESPECTIVELY. VARIOUS MODES OF OPERATION ARE REQUIRED THAT INCLUDE BRIGHT FIELD IMAGING, DARK FIELD IMAGING, SELECTED AREA DIFFRACTION, NANO-BEAM DIFFRACTION, AND STEM. ANALYSES WILL REQUIRE EDS WITH IN SITU CHEMICAL ANALYSIS USING POINT ANALYSIS, LINE ANALYSIS, AND ELEMENTAL MAPPING MODES. THE RESULTS SHALL BE PROVIDED TO NASA AS IMAGES AND SPECTRA IN DIGITAL FORMAT. THE ESTIMATED TOTAL NUMBER OF SAMPLES FOR HR-TEM CHARACTERIZATION WILL BE 20 SAMPLES, 10 OF THESE SAMPLES SHALL ALSO BE CHARACTERIZED USING EDS. SAMPLE PREPARATION WILL BE CONDUCTED BY NASA LANGLEY RESEARCH CENTER AND THE SAMPLES WILL BE MOUNTED ON 3-MM TRANSMISSION ELECTRON MICROSCOPY GRIDS. IT IS REQUIRED THAT A TECHNICAL REPRESENTATIVE FROM THE NASA LANGLEY RESEARCH CENTER BE PRESENT DURING THESE ANALYSES. THE REPRESENTATIVE WILL CONSULT WITH THE CONTRACTOR ON BEST METHODOLOGIES TO ACQUIRE HR-TEM IMAGES AND EDS DATA.