Processing, microstructure and mechanical properties of alumina platelet reinforced 3Y-TZP and mullite composites

Ceramic matrix composites consisting of mullite and 3Y-TZP containing alumina platelet reinforcements were fabricated by suspension processing and pressureless sintered. The effect of the matrix on the microstructural development in the presence of alumina platelets were characterized. A systematic study of the effect of platelet sizes in the ranges 3-5, 5-10, 10-15 and 15-25 microns on the green and fired microstructures in 3Y-TZP composites were determined using porosimetry and electron microscopy. The mechanical properties of the composites such as fracture strength, fracture toughness and high temperature microhardness as a function of platelet size and volume fractions were determined.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Materials Science and Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2011

Author dc:creator

• Cherian, Isaac Kollenmareth

Contributors dc:contributor

• Kriven, Waltraud M.

• Engineering, Materials Science

Statement dc:rights

• Copyright 1995 Cherian, Isaac Kollenmareth

Language dc:language

eng

Identifier

AAI9543555
(UMI)AAI9543555

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/22840