Publications

Sep, 2026

Journal

In situ studies on heavy ion irradiation and partial oxidation induced stacking faults and nanograins in tungsten nanolaminates

Understanding the microstructural evolution of tungsten (W) under extreme irradiation environments is critical for its application as a plasma-facing material in future fusion reactors. Heavy ion irradiation study offers expedited damage accumulation and thus allows irradiation tolerance property prediction in a short period of time. In this study we explore in situ Kr ion…

Sep, 2026

Journal

Self-generated phosphate/oxysulfide passivation from dry-processed single-crystal NMC811 stabilizes argyrodite sulfide solid-state battery interfaces

Pushing sulfide all solid-state batteries (SSBs) beyond 500 Wh kg⁻¹ requires high voltage, high loading layered cathodes without accelerating sulfide electrolyte decomposition or losing interfacial contact. Polycrystalline NMC811 commonly fails under these conditions due to grain-boundary oxygen release, chemo-mechanical cracking, and growth of resistive cathode–electrolyt…

Aug, 2026

ORNL Report

Mass Spectrometry Characterization of High Fluence Baffle-Former Bolts Retrieved from a Westinghouse PWR

Aug, 2026

Journal

Mechanical characterization of fine-grain dispersion-strengthened tungsten as a plasma facing material

Field-Assisted Sintering Technology (FAST) was used to produce fine-grained, dispersion-strengthened tungsten (W) materials. Investigated materials 4138, 4353, and 4355 composed of 3 wt% ZrC sintered at 1800 °C, 5 wt% ZrC sintered at 1800 °C, and 3 wt% ZrC sintered at 2000 °C, respectively. They were compared against ITER-grade W. A series of mechanical and thermal propert…

Aug, 2026

Journal

Radiation damage in tungsten under high-energy He-ion irradiation

Tungsten (W) is a primary candidate for plasma-facing components (PFCs) in fusion reactors and hybrid fission-fusion reactors. However, W suffers from severe microstructural damage under Helium (He) ion irradiation in operation conditions. Key irradiation parameters, including incident ion energy, fluence, and irradiation temperature, are known to determine the formation o…

Aug, 2026

Journal

Temperature and dose rate effects on dislocation loop formation and decoration in self-ion irradiated high-purity Fe-Cr model alloys

Body-centered cubic (BCC) Fe-based alloys are promising candidate materials for advanced nuclear reactors. A widespread perception is that the addition of Cr favors the formation of ½ dislocation loops. However, the Cr effects on dislocation loop formation/evolution remain unclear due to the limited experimental studies. In this study, we irradiate ultra-high purity bulk B…

Aug, 2026

Journal

Hierarchical microstructure of Yb-filled skutterudites through ultrasonically atomized spherical powders for enhanced thermoelectric performance

Hierarchical microstructures are widely explored as a strategy to reduce lattice thermal conductivity in thermoelectric materials while preserving favorable electronic transport. Here we demonstrate that ultrasonic atomization of precursor powders provides an intrinsic pathway to generate such architectures in n-type Yb0.3Co4Sb12 skutterudites. Materials were synthesized b…

May, 2026

Journal

In situ molecular imaging of ion clusters reveals the acid gas capture capacity and mechanism of water-lean ionic liquids

Water-lean solvents are a promising technology for capturing acid gases like carbon dioxide (CO2). In situ liquid time-of-flight secondary ionization mass spectroscopy (ToF-SIMS) is used to study a representative solvent N-(2-ethoxyethyl)-3-morpholinopropan-1-amine (2-EEMPA) with different CO2 loadings to reveal the complex solvent structure upon CO2 capture. Characteristi…

May, 2026

Journal

Mass spectral molecular mapping shows benefits of thermal evaporation in prelithiated silicon-based electrodes

Silicon based composites have become increasingly popular as potential anodes for lithium-ion batteries due to their large storage capacity and potential ability to generate batteries with energy densities greater than 350 Wh kg−1. These anodes often see reduced initial columbic efficiency (ICE) due to disruptive volume expansionup to 300% and continuous solid electrolyte…

Mar, 2026

Conference Paper

Exploratory Data Analysis of Long-Term Meteorological Data at a DOE Site for Nuclear Safety

Mar, 2026

Conference Paper

Studying Boehmite Particles in Liquid as a Component of Hanford Waste Using Multimodal Spectroscopy and Imaging

Mar, 2026

Conference Paper

ToF-SIMS Imaging and Analysis of Light Isotopes in Irradiated Materials