Methods for fabricating and characterizing a new generation of biomimetic materials

Bringing together current ideas in the fields of biomineralization and comp osite laminate materials, we have attempted to fabricate model materials th at mimic abalone nacre through the rapid assembly of inorganic tablets, suc h as talc. Several physical methods were tested to aid the orientation of t he talc tablets in fluid suspensions with a low percentage, 10% by dry weig ht, of organic binding material. The orientation of talc tablets in the syn thesized composites was characterized by X-ray diffraction and scanning ele ctron microscopy. The modulus of rupture of the materials was measured in a three-point bending test. We demonstrate that the alignment of tablets inc reases by the use of physical methods and from chemical surface treatment. Important factors to consider in making materials that mimic abalone nacre are discussed. Important factors to consider in making materials that mimic abalone nacre are discussed. (C) 1999 Elsevier Science S.A. All rights res erved.