Lei Zhang

ORCID: 0000-0003-0969-9578
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About
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Research Areas
  • Diamond and Carbon-based Materials Research
  • Magnetic Properties and Synthesis of Ferrites
  • Advanced materials and composites
  • Metal and Thin Film Mechanics
  • Advancements in Solid Oxide Fuel Cells
  • Aluminum Alloys Composites Properties
  • Nuclear Materials and Properties
  • Magnetic and transport properties of perovskites and related materials
  • Lubricants and Their Additives
  • Advancements in Battery Materials
  • Fuel Cells and Related Materials
  • Electrocatalysts for Energy Conversion
  • Advanced Surface Polishing Techniques
  • Advanced ceramic materials synthesis
  • Advanced Antenna and Metasurface Technologies
  • Ga2O3 and related materials
  • Microwave Dielectric Ceramics Synthesis
  • Pigment Synthesis and Properties
  • Transition Metal Oxide Nanomaterials
  • Catalytic Processes in Materials Science
  • Molten salt chemistry and electrochemical processes
  • Machine Learning in Materials Science
  • Metallurgical and Alloy Processes
  • Nanoporous metals and alloys
  • Multiferroics and related materials

Sun Yat-sen University
2025

Central South University
2011-2024

State Key Laboratory of Powder Metallurgy
2019-2023

China University of Mining and Technology
2021

Xi'an Jiaotong University
2020

State Key Laboratory of High Performance Complex Manufacturing
2018

Shanghai University
2017

University of Utah
2014-2017

China Academy of Engineering Physics
2017

China University of Geosciences (Beijing)
2016

Despite the widespread applications of alumina due to its rich polymorphism, structures many transitional aluminas remain unresolved. This work employs neuroevolution potential (NEP) approach accurately describe polymorphic aluminas. Its accuracy and generality are validated through molecular dynamics simulations under diverse thermodynamic structural conditions. A search workflow has also been developed based on NEP, which, in conjunction with spectroscopic data stability considerations,...

10.1103/physrevmaterials.9.023801 article EN Physical Review Materials 2025-02-07

Abstract Ultraviolet (UV) photonics-based device and equipment have various applications in sterilization, military covert communication, medical treatment, nanofabrication, gem identification so on. The traditional constituent UV components are bulky, inefficient, expensive easily aging under radiation. An all-dielectric metasurface offers a promising way to control the amplitude, polarization phase of light by engineering size, shape distribution its elements. However, based on...

10.1515/nanoph-2018-0151 article EN cc-by Nanophotonics 2018-12-04

In this Article, we report the synthesis of micro- and nanocrystalline diamond/β-SiC composite gradient films, using a hot filament chemical vapor deposition (HFCVD) technique its application as robust chemically inert means to actuate water hazardous liquids. As revealed by scanning electron microscopy, composition surface changed gradually from pure diamond (hydrophobic) β-SiC (hydrophilic). Transmission microscopy Raman spectroscopy were employed determine presence diamond, graphite,...

10.1021/acs.langmuir.7b04072 article EN Langmuir 2017-12-18

The solution treated β type Ti-19Nb-1.5Mo-4Zr-8Sn (TNMZS) alloy plate was rolled for minor deformation 2%~8%, followed by low-temperature ageing. stress-induced α″ martensite and isothermal ω phase characterized. results showed that, coherent also satisfied the lattice constant relationships: 2aβ = aω bω, 32aβ cω. pre-deformation caused rapid hardness increase of TNMZS in early stage ageing at 400 °C, yield strength improved from 459 MPa to 725 MPa, with elongation 6.9–7.9% after 10 min....

10.1016/j.rinp.2020.103366 article EN cc-by-nc-nd Results in Physics 2020-09-02

A simple and efficient method-vacuum heat treatment gaseous boronizing was proposed to pretreat the YG6X cemented carbides for maintaining its toughness strength of pretreated carbide, promising mass production. After this pretreatment, substrate surface remained clean, nanocrystalline diamond (NCD) films were deposited on carbide by hot filament chemical vapor deposition (HFCVD) with methane, hydrogen argon as reaction gases. The morphology, structure, roughness film-substrate adhesion...

10.1088/2053-1591/ab11f6 article EN Materials Research Express 2019-03-21

10.1016/j.ijrmhm.2016.09.005 article EN International Journal of Refractory Metals and Hard Materials 2016-09-16

A series of control experiments were performed to explore the role electronic conduction on stability SOECs using pure 8YSZ and CeO2-doped as electrolytes. Under similar conditions, measured polarization resistances supported cells either increased or decreased after passing current for about 24 h while resistance remained fairly stable 5Ce8YSZ cells. The potential an embedded Pt probe at center a cell started fluctuate ~50 reached maximum amplitude 130 150 h. By contrast, did not show...

10.1149/08009.0081ecst article EN ECS Transactions 2017-08-31

Porous NiCu alloys with tailored pore structure were successfully produced by freezing casting method using Ni and Cu powders as raw materials. The pores are elongated, the porosity, wall thickness width can be controlled solid content of slurry temperature. structures mechanical properties porous investigated. Results show that increases from 5% to 20 wt %, porosity decrease, while increases. nearly keeps constant same but different compressive strength rises increasing due deceased under...

10.1088/2053-1591/aa99e6 article EN Materials Research Express 2017-11-13

Oxygen deficiency is common during the sintering process of nickel ferrite, and has a significant impact on properties sintered body. This work investigated effects oxygen evolution lattice defects in spinel crystal. The weight losses 1.308% 2.791% observed at 300-600 °C 1000-1400 respectively were related to generation vacancies outer surface decomposition NiFe2O4-δ, respectively. With increasing concentration vacancies, NiFe2O4-δ would gradually decomposed above 1200 °C, leading solid...

10.2139/ssrn.3999201 article EN SSRN Electronic Journal 2022-01-01

Abstract Run-in process is a very critical stage before the solid self-lubricating friction pair reaches steady state. For identification and prediction of run-in states for AgCu-MoS 2 /AgCu10 tribo-pair, it important to understand its evolution law. The tests were carried out under different conditions with pin-on-disc tribometer, coefficient signal was collected. Reconstructing phase trajectories using space reconstruction principal component analysis presented. As an alternative...

10.1088/2051-672x/ac9c75 article EN Surface Topography Metrology and Properties 2022-10-21
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