New Biomaterials Based on Polymer-Ceramic Composites

Fracture of Ceramic-Polymer Composite Biomaterials

Fracture toughness, strength, and elastic modulus of poly(methyl methacrylate) (PMMA)and poly(buty1 methacrylate) (PBMA)-impregnated alumina ceramics were measured as a function of polymer volume fraction, mean polymer particle size, and interfacial bonding between the polymer and ceramic. Fracture toughness was found to increase with increasing polymer volume fraction and decreasing polymer pa...

Broad-band Ceramic-polymer Piezoelectric Composites

Bioactive Ceramic-polymer Composites for Tissue Replacement

Bone, at the ultra-structural level, is a composite with mechanical properties that can be matched by man-made composites. It serves as the template for developing bone replacement materials. Research on biomaterials analogous to bone was started in the early 1980s by incorporating bioactive particles into biocompatible polymers in order to produce bone substitutes. Hydroxyapatite reinforced hi...

Bioactive Ceramic-polymer Composites for Bone Replacement

Bone, at the ultra-structural level, is a composite with mechanical properties that can be matched by man-made composites. It serves as the template for developing bone replacement materials. Research on biomaterials analogous to bone was started in the early 1980s by incorporating bioactive particles into biocompatible polymers to produce bone substitutes. Hydroxyapatite reinforced high densit...

Dielectric Mixing Laws in Ceramic/polymer Composites

Dielectric mixing laws were examined for the composites consisting of ferroelectric ceramics particles dispersed in the polymer matrix. The rate of increase in the dielectric permittivity with increasing ceramics content was shown to be consistent with classical Bruggeman predictions. The use of semiconductive polymer matrix generates dielectric as well as conductive relaxations associated with...