Design and Manufacturing of Hierarchical Multi-Functional Materials Via High Resolution additive Manufacturing

This master's thesis deals with the challenges of undesirable thermal expansion in lightweight materials. Thermal expansion of parts or components can lead to malfunction or breakdowns of complete systems in demanding environment where a large temperature gradient often exists. This work investigates a class of lightweight materials of which the thermal expansion coefficient can be controlled. Moreover, an additive manufacturing approach to produce these thermal management materials with high fidelity and reliability are critical to reach this goal. To achieve these two major research objectives analytic predictions, simulations, and measurement of thermal expansion coefficient with respect to temperature changes are conducted. Design and optimization of a high precision multi-material manufacturing apparatus has been conducted, leading to significant increase in production quality including reliability, efficiency, and costs.

Name thesis:degree_name

Master of Science

Level thesis:degree_level

masters

Discipline thesis:degree_discipline

Mechanical Engineering

Department dc:contributor.department

Mechanical Engineering

Grantor dc:publisher

Virginia Tech

Year dc:date.issued

2017

Author dc:creator

• Karch, Matthias Ottmar

Chairs dc:contributor.committeechair

• Anderl, Reiner
• Zheng, Xiaoyu

Committee members dc:contributor.committeemember

• Bohn, Jan Helge
• Hampe, Manfred J.

• 3D-printing
• Microstereolithography
• Coefficient of Thermal Expansion

Statement dc:rights

• In Copyright

Licence dc:rights.uri

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

Dc Identifier Other

vt_gsexam:12989

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/79453