Reaction Synthesis of Titanium Aluminide / Titanium Diboride in-Situ Composites

Reaction synthesis is a processing technique where the thermal activation energy needed to form a compound is provided by the exothermic heat of formation of the thermodynamically stable product. This type of synthesis has been used to form a variety of ceramics, intermetallics, and in-situ composites. In this work, the effects of changing the stoichiometry of the titanium aluminide matrix, and the effects of extrinsic reaction variables on the behavior of the reaction were studied and compared to theoretical predictions. It was shown that changing the stoichiometry of the titanium aluminide did have an effect on the measured heat of reaction; however this did not match the prediction. Changing the extrinsic variables of titanium and aluminum particle sizes also showed a significant effect on the behavior of the reaction.

Name thesis:degree_name

Master of Science

Level thesis:degree_level

masters

Discipline thesis:degree_discipline

Materials Science and Engineering

Department dc:contributor.department

Materials Science and Engineering

Grantor dc:publisher

Virginia Tech

Year dc:date.issued

2006

Author dc:creator

• Jeffers, Elizabeth Ann

Chair dc:contributor.committeechair

• Kampe, Stephen L.

Committee members dc:contributor.committeemember

• Logan, Kathryn V.
• Suchicital, Carlos T. A.

• Titanium Diboride
• In-Situ Composite
• SHS
• Titanium Aluminide
• Reaction synthesis
• DSC

Statement dc:rights

• In Copyright

Licence dc:rights.uri

• http://rightsstatements.org/vocab/InC/1.0/

Dc Identifier Other

etd-10122006-193701

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/35367