Drexel University

Surya Kalidindi

Sorin Siegler

Tamer El-Raghy

Michael W Barsoum

Abdel Abusafieh

Antonios Zavaliangos

Dmitri Brodkin

Products having single phases or solid solutions of the formula M.sub.3 X.sub.1 Z.sub.2 wherein M is a transition metal, X is Si, Al or Ge and Z is B, C or N can be prepared by taking a powdered mixture containing M, X and Z to a temperature of about 1000.degree. C. to about 1800.degree. C., optionally simultaneously under a pressure of about 5 MPa to about 200 MPa. The products so formed have excellent shock resistance, oxidation resistance and machinability. The products may also be present as composites, preferably composites which are in thermal equilibrium with the single phase or solid solutions of the formula M.sub.3 X.sub.1 Z.sub.2.

Synthesis of 312 phases and composites thereof

A method of anchoring soft tissue to bone is provided comprising providing a mixture of a hydrophobic monomer and a hydrophilic monomer and a crosslinking agent to form a swellable copolymer, adding a soft tissue attachment element to the mixture, wherein a portion of the soft tissue attachment element protrudes from the mixture, polymerizing the mixture to form the copolymer, implanting the copolymer into bone and attaching a soft tissue to the protruding portion of the attachment element to anchor the soft tissue to the bone.

Swelling type copolymeric composite material with self-fixation

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Turnersville, NJ, United States of America

Surya Kalidindi