A5006233275- Advanced ceramic materials synthesis
- Additive Manufacturing and 3D Printing Technologies
- Advanced materials and composites
- MXene and MAX Phase Materials
- Energetic Materials and Combustion
- Aluminum Alloys Composites Properties
- Injection Molding Process and Properties
- Thermal and Kinetic Analysis
- Metal and Thin Film Mechanics
- Bone Tissue Engineering Materials
- Advanced Battery Materials and Technologies
- Ultrasound and Cavitation Phenomena
- Manufacturing Process and Optimization
- Rocket and propulsion systems research
- Machine Learning in Materials Science
- Fatigue and fracture mechanics
- 3D Printing in Biomedical Research
- Boron and Carbon Nanomaterials Research
- Material Properties and Failure Mechanisms
- Powder Metallurgy Techniques and Materials
- High Temperature Alloys and Creep
- Advancements in Battery Materials
- Advanced Battery Technologies Research
DEVCOM Army Research Laboratory
2021-2024
United States Army Combat Capabilities Development Command
2021-2024
Bennett Aerospace (United States)
2021
Johnson & Johnson (United States)
2019
Purdue University West Lafayette
2014-2015
Wright-Patterson Air Force Base
2010-2014
Thomas Jefferson National Accelerator Facility
2014
University of Dayton
2010
United States Air Force Research Laboratory
2010
Abstract 3D printing (3DP) technologies have transformed the processing of advanced ceramics for small‐scale and custom designs during past three decades. Simple complex parts are designed manufactured using 3DP structural, piezoelectric, biomedical applications. Manufacturing simple or geometries one‐of‐a‐kind components without part‐specific tooling saves significant time creates new applications ceramic materials. Although development innovations in far behind compared with metals...
Organically capped metal nanoparticles are an attractive alternative to more conventional oxide-passivated materials, due the lower reaction temperatures and possibility of tuning organic coating. Sonochemical methods have been used produce small (∼5 nm average size) air-stable aluminum with oleic acid. In order understand nature metal−organic bonding in nanoparticles, we FTIR, XPS, TOFMS−TPD techniques study passivation layer its desorption at elevated temperatures. present case find that...
Aluminum nanoparticles have been a subject of active investigation in recent years because their potential to enhance the energy content energetic materials. The associated kinetics chemical reaction and release are, many cases, governed by properties passivation layer protecting particle rather than those underlying metal core. Al particles is typically an oxide shell several nanometers thick, but other possibilities are now available. We previously developed synthesis routes produce...
Reactive hot pressing was used to prepare Zr 1− x Ti B 2 –ZrC composites with advantageous microstructure and mechanical properties from ZrB –TiC powders. The reaction mechanisms the effects of different levels TiC on physical resulting composite were explored in detail compared conventionally hot‐pressed –ZrC. Incorporation 10 30 vol% enabled full densification restrained grain growth, reducing final average size 5.6 μm pure a minimum 1.4 samples TiC. flexural strengths hardnesses sintered...
Ceramics have exceptional tribological performance in high wear applications, but susceptibility to brittle fracture requires expensive postprocessing, including hot isostatic pressing and polishing. Consequently, additive manufacturing (AM) represents a collection of potentially costsaving approaches for ceramic production. AM technologies been demonstrated oxide ceramics, the self-mated materials remains unknown underscores critical knowledge gap. Alumina zirconia pins produced with...
Zirconium diboride–based ceramics were studied to explore the effects of high secondary phase content and relative merits silicon carbide zirconium carbide. Densification grain growth not influenced by heating rate or composition. Hardness increased with from 18 26GPa 21.5GPa respectively. Flexural strength was controlled size mode crack propagation, maximized at 380MPa 20wt% 590 MPa 50wt% enhanced flexural better, due its smaller coefficient thermal expansion mismatch diboride.
Abstract The feasibility of flash sintering boron carbide (B 4 C) was investigated using a direct current (DC) electric field across different electrodes, strengths, and thermal profiles. Flash behavior observed at furnace temperatures as low 386°C with strengths 68‐278 V/cm, but only small channel the specimen densified due to hot spot effects. Application 2.2 V/cm·s voltage ramp constant temperature 550°C caused uniform heating, too for sintering. Scalable densification B C is theorized be...
Abstract A UV‐curable resin containing alumina (Al 2 O 3 ) powder and platelets was developed characterized using a proof‐of concept tape‐casting system trialed on commercially available 3D‐printing platform (Admatec Admaflex 130). The influence of solids loading platelet fraction viscosity depth cure investigated. Resins up to 40 vol% at fractions 50% were found have sufficiently low for tape casting depths ranging from 0.29 0.39 mm. Alumina observed lower ink but also reduce shear thinning...