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Search Publications by: Jason Killgore (Fed)

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Displaying 26 - 50 of 85

In situ absorption synchrotron measurements, predictive modeling, microstructural analysis, and scanning probe measurements of laser melted Ti-6Al-4V single tracks for additive manufacturing applications

December 29, 2021
Author(s)
Nicholas Derimow, Edwin Schwalbach, Jake Benzing, Jason Killgore, Aly Artusio-Glimpse, Nik Hrabe, Brian Simonds
In this work, the fundamental processing-structure-property (PSP) relationships that govern laser-based additive manufacturing were investigated with the Ti-6Al-4V alloy. X-ray synchrotron imaging carried out in conjunction with in-situ integrating sphere

Perspectives in Scanning Probe Microscopy from the 2021 Joint International Scanning Probe Microscopy and Scanning Probe Microscopy on Soft and Polymeric Materials Conference

November 30, 2021
Author(s)
Liam Collins, Jason Killgore, Samuel Berweger, Rachael Cohn, neus domingo, Georg Fantner, Rajiv Giridharagopal, Sergei Kalinin, Philippe LECLERE, Simon Scheuring, Rama Vasudevan, Dalia Yablon
In March 2020 our plans for organizing and hosting one of the premier scanning probe microscopy (SPM) conferences in Breckenridge, Colorado, USA were well underway. For the first time the meeting would synergistically combine International Scanning Probe

Microscale Photopatterning of Through-thickness Modulus in a Monolithic and Functionally Graded 3D Printed Part

December 24, 2020
Author(s)
Asais C. Uzcategui, Callie I. Higgins, John Hergert, Andrew Tomaschke, Victor Crespo-Cuevas, Virginia L. Ferguson, Stephanie Bryant, Robert R. McLeod, Jason Killgore
3D printing is transforming traditional processing methods in applications ranging from tissue engineering to optics. To fulfill its maximum potential, 3D printing requires a robust technique for producing structures with precise three-dimensional (x, y

Error Estimation and Enhanced Stiffness Sensitivity in Contact Resonance Force Microscopy with a Multiple Arbitrary Frequency Lock-In Amplifier (MAFLIA)

May 29, 2020
Author(s)
Erin Flater, Arya Mugdha, Saurabh Gupta, William Hudson, Abbigail Fahrenkamp, Jason Killgore, Jesse Wilson
In contact resonance force microscopy and related dynamic atomic force microscopy methods, an accurate description of the real-time cantilever dynamics is essential to the mapping of local material properties, such as viscoelasticity, piezo response, and

Tunable Mechanical Anisotropy, Crack Guiding, and Toughness Enhancement in Two-Stage Reactive Polymer Networks

June 13, 2019
Author(s)
Lewis M. Cox, Adrienne K. Blevins, Jasper A. Drisko, Yifu Ding, Callie I. Higgins, Rong Long, Christopher N. Bowman, Jason P. Killgore
Photopolymers are a versatile group of materials that enable intricate geometric control over printed part geometries in advanced manufacturing processes. However, manufacturing methods attempting to spatially control material heterogeneity within printed

Controlled Growth of Polyamide Films atop Homogeneous and Heterogeneous Hydrogels using Gel- Liquid Interfacial Polymerization

May 22, 2019
Author(s)
Mengyuan Wang, Christopher Stafford, Lewis M. Cox, Adrienne K. Blevins, Masoud Aghajani, Jason Killgore, Yifu Ding
Interfacially polymerized polyamide (PA) layers dictate the permselective performance of thin film composite (TFC) membranes. Extensive effort has been focused on understanding and ultimately controlling the structure and morphology of the PA layers on

Nanomechanics of cellulose deformation reveal molecular defects that facilitate natural deconstruction

April 29, 2019
Author(s)
Peter Ciesielski, Ryan Wagner, Vivek Bharadwaj, Jason Killgore, Ashutosh Mittal, Gregg Beckham, Stephen Decker, Michael Himmel, Michael Crowley
Technologies surrounding utilization and processing of cellulosic materials have been important to human society for millennia. As with many materials, achieving a molecular-level understanding of the formation, characteristics, and functionality of

Monitoring Fast, Voxel-Scale Cure Kinetics via Sample-Coupled-Resonance Photorheology

February 13, 2019
Author(s)
Callie I. Higgins, Lewis M. Cox, Frank W. DelRio, Jason P. Killgore
Photopolymerizable materials are the focus of extensive research across a variety of fields ranging from additive manufacturing to regenerative medicine. However, poorly understood material mechanical and rheological properties during polymerization at the

Nanoscale Hygromechanical Behavior of Lignin

September 22, 2018
Author(s)
Kristen M. Hess, Jason Killgore, Wil Srubar
The nanoscale hygromechanical behavior of lignin is presented in this work. Three atomic force microscopy experimental methods were used to correlate moisture sorption of lignin to its mechanicalbehavior. First, sorption isotherms were established using
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