عنوان

Additive Manufacturing of 3-D Microarchitected Materials, Micro Electrode Arrays, and Micro Lattice Batteries:

Number

TLpq2240014905

.Language of Text, Soundtrack etc

انگلیسی

Title Proper

Additive Manufacturing of 3-D Microarchitected Materials, Micro Electrode Arrays, and Micro Lattice Batteries:

General Material Designation

[Thesis]

First Statement of Responsibility

Saleh, Mohammad Sadeq

Title Proper by Another Author

Process Development and Application Demonstration

Subsequent Statement of Responsibility

Panat, Rahul

Name of Publisher, Distributor, etc.

Carnegie Mellon University

Date of Publication, Distribution, etc.

2019

Specific Material Designation and Extent of Item

202

Dissertation or thesis details and type of degree

Ph.D.

Body granting the degree

Carnegie Mellon University

Text preceding or following the note

2019

Text of Note

Micro Additive Manufacturing (μAM) methods are capable of fabricating complex three-dimensional devices and structures at submillimeter length scales. These methods result in faster production, reduced waste, and enhanced design customization compared to conventional microfabrication techniques. Printed electronics, architected metamaterials, printed biomedical devices, and printed batteries are the frontline applications that can benefit from these novel fabrication methods. Bringing the additive manufacturing to micron length scales for these applications, however, is a challenging task since only a few such techniques (e.g. those involving photopolymerization of polymers) are scalable to submillimeter length scales. This presents an opportunity for non-conventional technologies to be developed to address this need and expand the application envelope of AM. In this work, we aim to achieve a bottom-up assembly of materials by direct writing of nanoparticle colloidal dispersions to fabricate three-dimensional structures and microdevices with feature sizes down to 10-15μm. To achieve this goal, an entirely new manufacturing method is developed by leveraging aerosol jet printing technique to create three-dimensional micro architectures without any support structures via a rapid spatial assembly of materials in droplet-by-droplet fashion. The underlying mechanisms of this manufacturing technique and its limitations are studied. Further, the effect of aerosol droplet size distribution on the print quality and variability is investigated by a sediment collection and batch image analysis approach. Successful implementation of this uAM technique is demonstrated by synthesis/fabrication of micro-architected lattice materials, high-capacity micro-lattice Li-ion batteries, and high-density microelectrode arrays for electrophysiological recordings.

Electrical engineering

Neurosciences

Panat, Rahul

Saleh, Mohammad Sadeq

Electronic name

p

[Thesis]

276903

a

Y