Korea Institute of Materials Science

Correlated one-dimensional electron conduction in ferroelastic domain walls through nematic-like charge stripes

One-dimensional electronic transport reveals many-body quantum phenomena and serves as a foundation for quantum devices, sensors, and reconfigurable electronics. Here, we demonstrate that surface-exposed ferroelastic twin walls in epitaxial WO 3 films function as intrinsic one-di...

Effect of Y addition on microstructure, tensile properties, and corrosion behavior of high-speed-extruded Mg–5Bi–3Al alloy

This study investigates the effect of Y addition on the microstructure, tensile properties, and corrosion behavior of high-speed-extruded Mg–5Bi–3Al (BA53) alloy. Y-free BA53 and Y-containing BAW53 x alloys ( x = 0.2, 0.5, and 1.0 wt.%) are extruded at a die-exit speed of 67 m/mi...

Precipitate phase selection and grain boundary morphology in Cu-Ni-Si-Mn alloys: A machine-learning interatomic potential study

Alloys inevitably contain interphase boundaries, whose energetics govern nucleation processes and precipitate morphology. In Cu-Ni-Si alloys, Mn addition markedly changes grain boundary (GB) precipitation behavior. While GB precipitation of stable Ni 2 Si in Mn-free alloys is ass...

Composition-Tuned PdPt–WO3 Yolk–Shell Heterostructures with Engineered Catalytic Interfaces for Selective Isoprene Detection

Abstract Reliable isoprene detection is critical for personalized healthcare; however, achieving molecular discrimination at trace concentrations remains challenging. Herein, we report a one-pot spray pyrolysis strategy for the precise composition engineering of bimetallic PdPt n...

A Simple and Scalable Approach to High-Resolution Breathable Nanomesh Electrodes for Skin-Attachable Bioelectronics

Abstract Skin-attachable nanomesh electrodes with breathability and biocompatibility are promising for next-generation wearable healthcare systems. However, they face challenges to achieve reliable high-resolution micropatterning. Here, we propose a simple approach to fabricate b...

Ultrafine Sm2Fe17N3 soft actuators enabling robust operation at elevated temperature

Magnetoactive soft composites comprising hard magnetic particles embedded in elastomer matrices have emerged as a promising platform for programmable soft actuators capable of remote, untethered actuation. Ferromagnetic Nd 2 Fe 14 B particles, characterized by a high maximum ener...

Uncertainty-aware active-learning design of high-strength, corrosion-resistant as-extruded Mg–Al–Zn–Mn–Ca–Y alloys using Bayesian neural networks

The present study proposes an uncertainty-aware design framework for as-extruded Mg–Al–Zn–Mn–Ca–Y alloys by integrating Bayesian neural network (BNN)-based property prediction, uncertainty-driven active learning (AL), and experimental validation. In the present AL cycle, tensile-...

MXene as conductive mortar: Assembly of Ti3C2Tx and carbon nanotube fibers into multifunctional films for EMI shielding and infrared stealth

Advanced electronic and defense systems require multifunctional films that combine electromagnetic interference (EMI) shielding and infrared (IR) stealth with mechanical robustness, high electrical conductivity, and low IR emissivity. Here, we report a mechanically strong and hig...