A5032169852- Microwave Dielectric Ceramics Synthesis
- Ferroelectric and Piezoelectric Materials
- Advanced ceramic materials synthesis
- Advanced materials and composites
- Injection Molding Process and Properties
- Nuclear materials and radiation effects
- Innovative Microfluidic and Catalytic Techniques Innovation
- Powder Metallurgy Techniques and Materials
- Electrical and Thermal Properties of Materials
- Dielectric properties of ceramics
- Metallurgical Processes and Thermodynamics
- Metal and Thin Film Mechanics
- High Entropy Alloys Studies
- Metallurgy and Material Forming
- Solidification and crystal growth phenomena
- Magnetic Properties and Synthesis of Ferrites
- Engineering Applied Research
Pennsylvania State University
2018-2021
Cold sintering is an unusually low-temperature process that uses a transient transport phase, which most often liquid, and applied uniaxial force to assist in densification of powder compact. By using this approach, many ceramic powders can be transformed high-density monoliths at temperatures far below the melting point. In article, we present summary cold accomplishments current working models describe operative mechanisms context other strategies for densification. Current observations...
Abstract Zinc oxide densification mechanisms occurring during the cold sintering process (CSP) are examined by investigating specifically effects of ion concentration in solution, temperature, pressure, and die sealing. The experiments suggest that mass transport through solution is a primary mechanism either pre‐loaded or grain dissolution can supply migrating ions. Additionally, results indicate zinc requires critical pressure value, above which relatively independent under majority...
This report describes the design, operation, and capabilities of a semiautomated uniaxial press with in situ measurement platen displacements designed to facilitate, understand, improve compaction densification particulate materials contained conventional metal dies under modest temperatures. While not exclusive one implementation, instrumentation is particularly well-suited study cold sintering. The shares similarities dilatometry, given ability monitor pellet compaction, calorimetry, phase...
Although cold sintering remains an emerging processing technique, it is noteworthy to consider recent progress in materials that are of interest electrochemical systems with elevated service temperatures. Here we discuss a broad number ranging from alkali electrolytes for solid state batteries, oxygen ion conductors gas sensing. We also the opportunity co-fire mixed ionic into multilayered devices. Given low-temperature temperatures process (CSP), will some insights operating ceramics at...
Fermi level engineering and mechanical properties evolution in high entropy carbides are investigated by theoretical experimental means. Massive elemental diversity ceramics broadens the compositional space but imposes great challenges composition selection property investigation. We have utilized valence electron concentration (VEC) descriptor to design predict of carbides. The VEC regulates energy systematically alters bonding characteristics materials. As a result, evolve as function VEC....