Nucleation and Growth of Metastable Ternary Phases          from Modulated Multilayer Thin Film Composites
{'Code': '03070007', 'Directorate': {'Abbreviation': 'MPS', 'LongName': 'Direct For Mathematical & Physical Scien'}, 'Division': {'Abbreviation': 'DMR', 'LongName': 'Division Of Materials Research'}}
{'SignBlockName': 'David Nelson', 'PO_EMAI': None, 'PO_PHON': None}
The nucleation and growth of ternary phases from modulated                      multilayer thin film composites will be explored.  The first                    priority will be to synthesize ternary tungsten and ternary                     niobium chalcogenide composites, then explore the low temperature               reactions of these composites and generate low temperature phase                diagrams.  These composites will be synthesized by evaporation of               the elements in an ultrahigh vacuum environment.  The metastable,               highly reactive and intimately mixed starting structure ensures                 short diffusion pathlengths and significant reactivity at low                   temperatures.  After transfer to an inert atmosphere, the                       evolution of these composites will be studied as a function of                  temperature and time via differential scanning calorimetry,                     powder X-ray diffraction, scanning electron microscopy and                      microprobe analysis.  The effects of layer thickness, registry,                 and deposition temperature upon the nucleation of compounds and                 the evolution of the composites will be explored.  The goal is to               identify methods of controlling the reaction of composites                      through initial deposition conditions and/or reaction parameters.               The synthesis of new ternary compounds at low temperatures and                  the synthesis of new metastable materials will be the end                       products.
{'FirstName': 'David', 'LastName': 'Johnson', 'PI_MID_INIT': 'C', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'David C Johnson', 'EmailAddress': 'davej@oregon.uoregon.edu', 'NSF_ID': '000200332', 'StartDate': '11/15/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of Oregon Eugene', 'CityName': 'EUGENE', 'ZipCode': '974031905', 'PhoneNumber': '5413465131', 'StreetAddress': '1776 E 13TH AVE', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Oregon', 'StateCode': 'OR', 'CONGRESSDISTRICT': '04', 'CONGRESS_DISTRICT_ORG': 'OR04', 'ORG_UEI_NUM': 'Z3FGN9MF92U2', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF OREGON', 'ORG_PRNT_UEI_NUM': 'Z3FGN9MF92U2'}
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{'Code': '176200', 'Text': 'SOLID STATE & MATERIALS CHEMIS'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8704652.xml'}