A5063957823- Ferroelectric and Piezoelectric Materials
- Microwave Dielectric Ceramics Synthesis
- High Entropy Alloys Studies
- Acoustic Wave Resonator Technologies
- Multiferroics and related materials
- High-Temperature Coating Behaviors
- Dielectric properties of ceramics
- Electronic and Structural Properties of Oxides
- Advanced ceramic materials synthesis
- Dielectric materials and actuators
- Electrocatalysts for Energy Conversion
- Advanced materials and composites
- Nuclear materials and radiation effects
- Thermal Expansion and Ionic Conductivity
- Magnetic and transport properties of perovskites and related materials
- Advanced battery technologies research
- Fuel Cells and Related Materials
- Catalysis and Hydrodesulfurization Studies
- Glass properties and applications
- Aluminum Alloys Composites Properties
- Electrical and Thermal Properties of Materials
- Advanced machining processes and optimization
- Advancements in Solid Oxide Fuel Cells
- Thermal properties of materials
- Catalytic Processes in Materials Science
North China Electric Power University
2016-2025
Tsinghua University
2001-2020
State Key Laboratory of New Ceramics and Fine Processing
2001-2020
Beijing Jiaotong University
2020
University of Central Florida
2020
Lead-free K1−xNaxNbO3 ceramics with x=0.48–0.54 were prepared by a conventional solid-state reaction method to investigate the influence of K/Na ratio on phase structures and electrical properties. The results suggest that typical morphotropic boundary exists at x=0.52–0.525, separating monoclinic orthorhombic phases. sample composition near x=0.52 shows maximum values piezoelectric constant (d33=160 pC/N) electromechanical coupling coefficient (kt=47%). provide helpful guidance consider...
Abstract High‐entropy oxides (HEOs) are a new class of materials promising for wide range applications. Designing HEOs needs to consider both geometric compatibility and electrical balance. However, there is currently no available method systematically these two factors when selecting constituent making HEOs. Here we propose two‐step strategy, where HEO system first partitioned into multiple subsystems based on the valence combinations constituted cations; then considered in suitable...
Abstract Recently, high‐entropy perovskite oxides (HEPOs) have received increasing interest for energy storage applications owing to their unique structure, huge composition space, and promising properties. However, designing HEPOs with improved performance remains a challenge. In this study, various were designed by partially replacing Zr 4+ Ti in (Bi 0.4 Ba 0.2 K Na )TiO 3 medium‐entropy ferroelectric ceramics. The resulting ceramics exhibited pseudo‐cubic structure. With content, the...
Abstract In this paper, cordierite-based porous ceramics with magnetic properties have been firstly in-situ synthesized by using MgO, Al 2 O 3 , and SiO powders as raw materials Fe 4 a functional additive. Combining the foam freeze casting method, near net size fabrication (total linear shrinkage < 2.86%) of was realized adjusting amount . The porosity, compressive strength, saturation magnetization prepared were 83.9%–87.8%, 1.51–2.65 MPa, 1.2–5.8 emu/g, respectively. phase composition...
Piezoelectric constant and temperature vs dielectric measurements have been performed on the 〈001〉 〈011〉 oriented Pb(Mg1/3Nb2/3)O3–PbTiO3 crystals in rhombohedral phase with compositions near morphotropic boundary under different poling fields. The investigations revealed that piezoelectric properties strongly depend composition (PbTiO3 content), field for a narrow region. influence of stability orthorhombic ferroelectric has identified by x-ray diffraction crystals. And origin high response...
High-entropy ceramics (HECs) have rapidly expanded from high-entropy oxides to ultrahigh temperature ceramics/coatings and drawn extensive attention in the field of ceramics. In addition, thermoelectric materials focus on topic energy, which is another major driving force accelerate development HECs. this review, recent progress design synthesis chemically complex summarized. The fundamental understanding configurational entropy, phase stability, formation criterion HECs are discussed....
Abstract The characteristic temperature, including the Curie temperature () and dielectric constant maximum (), plays a critical role in determining operational range inherent performance at room for both ferroelectric relaxor materials. However, theoretical frameworks predicting multicomponent ferroelectrics are limited. A linear model based on empirical observations exists, but it does not consistently yield accurate results, particularly systems. In this study, we developed...
Searching for suitable sintering aids ceramic materials is important and tedious work. In this study, we introduce a simple effective method, named liquid phase screening method ( LPSM ), rapidly KNN ceramics. By measuring the structure properties, demonstrated that can be quickly determined by . The new found GeO 2 borax which have not been reported before, lead to improved properties.