Accession Number : ADA334869

Title :   Supramolecular Organization Using a Synthetic Analogue of Biomineralization

Descriptive Note : Final rept 1 Jun 95-31 May 97

Corporate Author : PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF CHEMISTRY

Personal Author(s) : Bianconi, Patricia A.

PDF Url : ADA334869

Report Date : 15 DEC 1997

Pagination or Media Count : 10

Abstract : The objective of this research program is to develop the chemistry and applications of a new biomimetic in situ synthetic system for the fabrication of inorganic/organic composite materials. The research focuses on understanding the mechanisms of the solid-state syntheses which give rise to composites in which the crystals of the inorganic phase are identical in size, morphology, and crystallographic orientation, the determining characteristics of naturally-formed biological composites. Synthesis of a new class of ordered composites, the high pressure lead sulfide phases, was carried out, and evaluation of these new materials' optoelectronic properties will be attempted. Synthesis of high-pressure phases of refractory ceramics such as boron nitride, will be attempted. An extension of the biomimetic synthetic process, an analogue of the solution sol-gel synthetic scheme for oxide ceramics, will also be studied in order to optimize a previously unknown process, the production of nonoxide ceramics by a solution sol-gel route.

Descriptors :   *COMPOSITE MATERIALS, *MINERALIZATION, ELECTROOPTICS, SYNTHESIS, POLYMERS, CRYSTALLIZATION, CERAMIC MATERIALS, OXIDES, ORGANIC MATERIALS, INORGANIC MATERIALS, BORON NITRIDES, CRYSTAL CHEMISTRY.

Subject Categories : Physical Chemistry
      Geology, Geochemistry and Mineralogy
      Electrooptical and Optoelectronic Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE