Formation and properties of calcium polyphosphate laminated interpenetrating phase composite structures.
Published: 2006
Language: eng
Number of pages: 108
ISBN-13: 9780494163726
Description: In this project, a multi-layered laminated structure made from single layer interpenetrating phase composites (IPC) of Calcium Polyphosphate (CPP) and Polyvinyl Acid Carbonate Co-polymer (PVAC) was developed as a novel material for fabricating new temporary bone fixation devices. Ball milled amorphous CPP particles (average 6mum) were first tape cast and sintered to form thin, porous, and semi-crystalline sheets. After infiltrating the sheets with PVAC to form IPC, laminated structures were made by stacking four or six IPCs. The structure with the best mechanical properties during 4-point bend testing was made with a '6-Layer' design, 80% theoretical density CPP-IPC, and MAA10 interlamellar polymer. It had a bending strength of 80MPa, elastic constant of 26GPa and relative toughness (area under the stress-deflection curve) of 78MPa&middot;mm. This study not only tries to indicate the benefits of forming laminated IPC structures but also to evaluate the use of finer CPP particles for sample preparation.
Notes: Source: Masters Abstracts International, Volume: 44-06, page: 2958.

Thesis (M.A.Sc.)--University of Toronto, 2006.

Electronic version licensed for access by U. of T. users.

ROBARTS MICROTEXT copy on microfiche.