A5100325800- Advanced materials and composites
- Advanced ceramic materials synthesis
- High-Temperature Coating Behaviors
- High Entropy Alloys Studies
- Nuclear Materials and Properties
- Aluminum Alloys Composites Properties
- Metal and Thin Film Mechanics
- Aerogels and thermal insulation
- MXene and MAX Phase Materials
- Nuclear materials and radiation effects
- Catalytic Processes in Materials Science
- Diamond and Carbon-based Materials Research
- Supercapacitor Materials and Fabrication
- Intermetallics and Advanced Alloy Properties
- Metal Alloys Wear and Properties
- Graphene research and applications
- Advanced Thermoelectric Materials and Devices
- Innovations in Concrete and Construction Materials
- Spectroscopy and Laser Applications
- Additive Manufacturing Materials and Processes
- Layered Double Hydroxides Synthesis and Applications
- Magnetic and transport properties of perovskites and related materials
- Innovative concrete reinforcement materials
- Glass properties and applications
- Atmospheric and Environmental Gas Dynamics
Jiangsu Province Special Equipment Safety Supervision and Inspection Institute
2024-2025
State Key Laboratory of New Ceramics and Fine Processing
2024
Osaka University
2022-2024
Shanghai Shipbuilding Technology Research Institute
2024
Liaoning Shihua University
2015-2024
Shanghai Jiao Tong University
2001-2024
Tsinghua University
2024
University of Chinese Academy of Sciences
2012-2024
Xi'an Technological University
2024
Institute of Process Engineering
2024
High-entropy pyrochlore-type structures based on rare-earth zirconates are successfully produced by conventional solid-state reaction method. Six oxides (La2O3, Nd2O3, Sm2O3, Eu2O3, Gd2O3, and Y2O3) ZrO2 used as the raw powders. Five out of six with equimolar ratio mixed sintered at different temperatures for investigating process. The results demonstrate that high-entropy pyrochlores (5RE1/5)2Zr2O7 have been formed after heated 1000°C. highly sintering resistant possess excellent thermal...
A high-entropy silicide (HES), (Ti0.2Zr0.2Nb0.2Mo0.2W0.2)Si2 with close-packed hexagonal structure is successfully manufactured through reactive spark plasma sintering at 1300 °C for 15 min. The elements in this HES are uniformly distributed the specimen based on energy dispersive spectrometer analysis except a small amount of zirconium that combined oxygen as impurity particles. Young's modulus, Poisson's ratio, and Vickers hardness obtained also measured.
Abstract High-entropy ceramics attract more and attention in recent years. However, mechanical properties especially strength fracture toughness for high-entropy their composites have not been comprehensively reported. In this work, (Ti 0.2 Zr Hf Nb Ta )B 2 (HEB) monolithic its composite containing 20 vol% SiC (HEB–20SiC) are prepared by hot pressing. The addition of only accelerates the densification process but also refines microstructure HEB, resulting improved properties. obtained dense...
Flexible and crack-free bacterial cellulose (BC)–silica composite aerogels (CAs) are prepared through a sol–gel process followed by freeze drying, in which the BC matrix silica gel skeleton form an interpenetrating network microstructure. The BC–silica CAs exhibit low density (0.02 g cm−3), high specific surface area (734.1 m2 g−1) thermal conductivity (0.031 W m−1 K−1), almost same as pure aerogels. Due to synergic effects of skeleton, obtained show excellent robustness flexibility overcome...
Three-dimensional (3D) measurements are highly desirable both for fundamental combustion research and practical monitoring control of systems. This work discusses a 3D diagnostic based on tomographic chemiluminescence (TC) to address this measurement need. The major contributions threefold. First, hybrid algorithm is developed solve the TC problem. was demonstrated in extensive tests, numerical experimental, yield reconstruction with high fidelity. Second, an experimental approach designed...
Abstract Ultra-high temperature ceramics (UHTCs) are considered as a family of nonmetallic and inorganic materials that have melting point over 3000 °C. Chemically, nearly all UHTCs borides, carbides, nitrides early transition metals (e.g., Zr, Hf, Nb, Ta). Within the last two decades, except for great achievements in densification, microstructure tailoring, mechanical property improvements UHTCs, many methods been established preparation porous aiming to develop high-temperature resistant,...
This article addresses the insufficient application of infrasound in detection nonmetallic pipeline leaks. Through a combination numerical simulations and experimental verification, we analyze sound field distribution, spectral characteristics, attenuation laws leakage signals under varying pressures apertures. The results indicate that amplitude pressure level signal consistently exceeds non-leakage level. Additionally, exhibits rapid with increasing frequency, pressure, aperture,...
Bacterial cellulose (BC)–silica composite aerogels (CAs) with interpenetrating network (IPN) microstructure are prepared through a permeation sol–gel process followed by freeze drying. The IPN structure is constructed diffusing the precursor into three-dimensional (3D) BC matrix permeating catalyst gradually to promote in situ condensation of form SiO2 gel skeleton from outside inside. used here Na2SiO3 instead traditional tetraethoxysilane. This could offer excellent mechanical properties...
This paper reports the simultaneous measurements of multiple flow parameters in a scramjet facility operating at nominal Mach number 2.5 using sensing system based on tunable diode-laser absorption spectroscopy (TDLAS). The TDLAS measures velocity, temperature, and water vapor partial pressure three different locations scramjet: inlet, combustion region near flame stabilization cavity, exit combustor. These enable determination variation mode engine, which are critical for evaluating...
A facile polyol process is presented to synthesize equimolar high-entropy metal hydroxides with 2D layered structures for the oxygen evolution reaction.
This paper proposes a casting improvement process to enable the of Al-Cu alloy cylinder heads achieve required quality. The hot tearing defects generated in fire face head during were simulated using MAGMA software. simulation results show that large wall thickness transition difference is reason for temperature and stress gradient solidification. Therefore, first solution was optimised by forming as whole into flat plate, but centre area still too high. second optimisation option optimises...