From: Msegradstudent-list <msegradstudent-list-bounces@ecn.purdue.edu>
On Behalf Of Morgan, Yuan-Yu Karen
Sent: Monday, November 22, 2021 4:51 PM
To: msegradstudent-list@ecn.purdue.edu; msefaculty-list@ecn.purdue.edu; msepostdoc-list@ecn.purdue.edu
Cc: Ku Blanco, Aury Y <akublanc@purdue.edu>
Subject: [msegradstudent-list] Preliminary Exam Seminar, December 6, Monday, 9:30 AM
Please consider attending this seminar:
MATERIALS ENGINEERING
“Polymer Infiltration and Pyrolysis Processing of Carbon/Carbon Composites”
By
Edwin Romero
Purdue MSE Preliminary Exam
Advisor: Professor Rodney Trice
ABSTRACT
The low density and high thermostability of bulk carbon make carbon fiber-reinforced carbon matrix composites a good candidate for hypersonic applications. To obtain a pure
carbon matrix, a polymer matrix composite is thermally decomposed in an oxygen-free atmosphere, resulting in weight loss and a porous matrix structure. The thermomechanical properties of the porous composite can be improved using polymer infiltration and pyrolysis
(PIP) processing, where infiltration and conversion of a secondary polymer causes a carbon build-up on pore walls. This simultaneously decreases the total pore volume and increases the carbon matrix density, but since a portion of the secondary polymer is
gasified, some residual porosity is left behind. As a result, several cycles of PIP are needed to obtain bulk densities >90%. This review focuses on some aspects of infiltration for carbon/carbon composites that have been used to reduce densification cycles.
Date: December 6, 2021
Time: 9:30 AM
Place: https://purdue.webex.com/meet/rtrice
Yuan-Yu Karen Morgan,Ph.D.
Academic Advisor-Graduate Program
School of Materials Engineering
Neil Armstrong Hall of Engineering, Room 2217
765-494-4103