Institute of Metal Research

High‐Entropy Engineering to Stabilize Single‐Atom Ru Catalysts for Efficient and Durable Water Splitting

ABSTRACT Developing efficient and durable electrocatalysts for oxygen and hydrogen evolution reactions (OER/HER) remains fundamentally challenging due to the intrinsic trade‐off between activity and stability. We herein report a high‐entropy‐engineered strategy to stabilize singl...

Effect of Nano‐CeO 2 Powder on Microstructure and Wear Resistance of Deloro 40 Coating Prepared by Laser Additive Manufacturing

In this study, a series of Deloro40 + x CeO 2 ( x = 0, 0.5, 1, 2, and 5 wt%) coatings were fabricated on SS316L stainless steel by laser additive manufacturing. The microstructure evolution, mechanical properties, and tribological behaviors of the deposited coatings were systemat...

High temperature oxidation and hot corrosion behavior of laser additive manufactured TiAl4822/TC25G graded materials at 750 °C

Laser additive manufacturing of titanium-based graded materials offers a promising route to enhance the performance of aero-engine compressors. However, the high temperature corrosion behavior of these materials remains difficult to predict due to compositional variations across...

Corrosion Behavior of Two Gd Particle-Doped Fe-Based Amorphous Coatings with Excellent Neutron Absorption Performance

Safe long-term storage of spent nuclear fuel requires materials that combine high neutron absorption with excellent corrosion resistance. In this study, two Gd-doped Fe-based amorphous coatings (2X5 + Gd and PC + Gd) containing 6.0 wt.% Gd were fabricated by high-velocity air–fue...

Tartrate-Assisted Hydrothermal Calcination Strategy for Compositionally Tunable Doped ZnO: Synthesis and Representative OER Evaluation

Abstract Metal doping provides an effective means of regulating the structure, defect chemistry, and functional properties of ZnO. Here, we report a tartrate-assisted hydrothermal-calcination strategy for preparing metal-doped ZnO with tunable compositions. Zn and dopant metal sa...

Decoupling the inverse κ – E g trade-off in 2D organic–inorganic magnetic semiconductors

Simultaneously achieving a high dielectric constant (κ) and a wide bandgap (Eg) in a single material remains challenging. Here, we report a charged-building-unit stacking strategy that yields tetragonal β-Fe3Se4-based organic–inorganic semiconductors. These materials exhibit both...

Bonding‐chemistry‐guided design of carbon frameworks for rechargeable‐ion batteries

Abstract Various carbon frameworks are central to rechargeable‐ion batteries, while continuous structural and compositional regulation provides broad opportunities to improve fast‐charging capability, storage capacity, and cycling stability. However, a unified chemistry‐based und...

Bulk ferroelectric heterostructures

Interfaces in oxide heterostructures act as critical regions to induce emergent and novel types of functionality in thin films. Herein, we demonstrate the creation of bulk ferroelectric heterostructures (BFHs) in monolithic ferroelectrics by nanoscale elemental partitioning, unlo...

Phase-dependent high-temperature oxidation behavior of multiphase Ti2AlNb alloy

Environmental degradation of Ti 2 AlNb alloys is intrinsically coupled with their multiphase constitution, yet the local mechanisms by which individual phases mediate oxidation remain insufficiently resolved. Here, we reveal the phase-selective high-temperature oxidation behavior...

Hot Corrosion Behavior and Mechanism of Ru-Containing Ni-Based Single-Crystal Superalloy Exposed to Molten Na2SO4 at 950 °C

In this study, the hot corrosion behavior of a low-Cr, Ru-containing nickel-based single-crystal (SX) superalloy under exposure to Na2SO4 corrosive environments at 950 °C for up to 200 h was systematically investigated. The hot corrosion kinetics of the alloy exhibit a typical tw...

Machine learning empowered compositional design of multiple rare-earth principal component disilicates

Abstract The targeted design of multi-RE-principal-component RE2Si2O7 disilicates ((nRExi)2Si2O7) for environmental barrier coatings (EBCs) applications requires customizing the multi-RE compositions to achieve maximal optimization of the target properties. A critical prerequisit...

Comparative Study on Filiform Corrosion of Automotive Hot Dip Galvanized and Zn‐Al‐Mg Coated Steels Under Acetic Acid Accelerated Test

ABSTRACT Acidic residues trapped in automotive structural crevices, where incomplete paint coverage often occurs due to electrodeposition electric‑field shielding, can initiate filiform corrosion (FFC). This study develops an accelerated test using 0.5 M acetic acid (50°C, 95% RH...

Study on the Stability of Cemented Backfill Under Blasting Disturbance: A Case Study of Makeng Iron Mine

The stability of cemented backfill during secondary extraction depends on its response to coupled static and blast-induced loading, yet the required strength and dominant failure mechanisms remain uncertain. Using the Makeng Iron Mine as a case study, we combined mix-design tests...

Rodingite‐Derived Melt as a Recipe for Ultra‐Calcic Magmas

Abstract Rodingite is a high‐CaO rock formed by Ca‐rich fluid metasomatism on mafic protoliths. It typically occurs within serpentinite and represents an often‐overlooked constituent of the altered oceanic lithosphere that may be subducted into the mantle. However, the fate of ro...