Accession Number : ADA296980

Title :   Fabrication of Biomimetic Molecular Level Composites.

Descriptive Note : Final rept. 1 Jun 92-31 May 95,

Corporate Author : PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF CHEMISTRY

Personal Author(s) : Bianconi, Patricia A.

PDF Url : ADA296980

Report Date : 31 MAY 1995

Pagination or Media Count : 13

Abstract : This report describes development of the chemistry and applications of a new biomimetic in situ synthetic system for the fabrication of inorganic/organic composite materials. The major findings involve 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 charateristics of naturally-formed biological composites. Synthetic control over the morphology and therefore of the material properties of both the organic and inorganic-phases of these new materials, as well as the mixing of the two disparate phases on the molecular level, is found to be affected primarily by (1) general factors controlling the crystallization of CdS in polymers, (2) surfactant effects on crystal growth and organization, and (3) matrix effects on crystal growth and organization.

Descriptors :   *MOLECULAR STATES, *COMPOSITE MATERIALS, *FABRICATION, CONTROL, POLYMERS, ORIENTATION(DIRECTION), CRYSTALLIZATION, CRYSTALS, CHEMISTRY, ORGANIC MATERIALS, CRYSTAL GROWTH, CRYSTALLOGRAPHY, INORGANIC MATERIALS.

Subject Categories : Laminates and Composite Materials
      Fabrication Metallurgy
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE