A5101813101- Shape Memory Alloy Transformations
- Energetic Materials and Combustion
- Magnetic and transport properties of perovskites and related materials
- Heusler alloys: electronic and magnetic properties
- Thermal and Kinetic Analysis
- Rocket and propulsion systems research
- Magnetic Properties and Applications
- MXene and MAX Phase Materials
- Graphene research and applications
- Combustion and Detonation Processes
- Magnetic properties of thin films
- Carbon Nanotubes in Composites
- Thermal Expansion and Ionic Conductivity
- High Entropy Alloys Studies
- Surface and Thin Film Phenomena
- Geological and Geophysical Studies
- Semiconductor materials and devices
- Diamond and Carbon-based Materials Research
- Geomagnetism and Paleomagnetism Studies
- Methane Hydrates and Related Phenomena
- Ferroelectric and Piezoelectric Materials
- Iron-based superconductors research
- Earthquake Detection and Analysis
- Synthesis and Properties of Aromatic Compounds
- Topological Materials and Phenomena
Fuyang Normal University
2010-2024
Nanjing University of Science and Technology
1996-2024
National Central University
2023
Ministry of Industry and Information Technology
2021
Shanghai University
2016-2020
National Laboratory for Superconductivity
2006
Institute of Physics
2006
Chinese Academy of Sciences
2006
Tsinghua University
2003
Foxconn (China)
2003
Polynitro cage compound 4-trinitroethyl-2,6,8,10,12-pentanitrohexaazaisowurtzitane has the same framework with but higher stability than CL-20 and is a potential new high energy density (HEDC). In this paper, B3LYP/6-31G(d,p) method of functional theory (DFT) been used to study its heat formation, IR spectrum, thermodynamic properties. The was evaluated by bond dissociation energies. calculated results show that first step pyrolysis rupture N-NO(2) in side chain verify experimental...
Investigating the thermal decomposition and detonation mechanisms of DNAN by combining TG-FTIR-MS with DFT ReaxFF MD.
Abstract The electrically controlled solid propellant (ECSP) has many advantages that are not available with traditional propellants, such as multiple start/stop operations and controllable thrust. In this research, conductive graphite (C) was employed an additive to hydroxylammonium nitrate (HAN)‐based ECSPs enhance electrical conductivity thermal conductivity, the influences of C on burning characteristics were investigated by some characterization methods. addition 5 % increases 13.2 18.9...
Field electron emission properties of individual diamond cone were investigated using a customized double-probe scanning microscope system. The was formed by maskless ion sputtering process in bias-assisted hot filament chemical vapor deposition as-formed sharp coated with high-sp2-content amorphous carbon exhibited high current about 80μA at an applied voltage 100V. field stable and well consistent the conventional Fowler-Nordheim mechanism, due to stabilization surface work function. It...
Abstract Employing functional building units with microscopic second‐order NLO response has been proposed to explore high performance materials. Herein, structural, electronic and optical properties of non‐centrosymmetric molybdenyl carbonate Cs 3 MoO 4 (HCO ) active have examined based on density theory. Theoretical results are consistent experimentally mentioned data, confirming the reliable method. Detailed geometric structure, attributes, linear properties, nonlinear provided. Analysis...
Abstract To explore combustion catalysts for solid propellants, four novel energetic coordination compounds were prepared with the anion of nitrocyanamide (NCA) as ligand and 1‐allyl‐imidazole (AIM) ligand, transition metals Mn, Co, Ni, Cu central ions. The structures these [Mn(AIM) 4 ] 2 ( 1 ), [Co(AIM) ](NCA) [Ni(AIM) 3 [Cu(AIM) ). results showed that all possessed high energy density, compound had a mass density E g ) 17.9 kJ −1 volume v 25.59 cm −3 . catalytic effect on thermal...
The electrical transport properties at martensitic transformation (MT) in polycrystalline Ni43.7Fe5.3Mn35.4In15.6 have been intensively investigated under different hydrostatic pressures. For this alloy, the experimental results show that applying a higher pressure can convert its MT from metamagnetic type into paramagnetic type. It provides unique opportunity to separate relative contributions of electron-spin and electron-lattice scatterings across based on dynamical Clausius-Clapeyron...
Field emission from carbon nanotubes can be affected by common carbon- containing residual gases in vacuum systems. In this article, we will show the effects of CO, CO2, CH4, and C2H4 on field-emission currents patterned multiwalled carbon-nanotube arrays prepared chemical vapor deposition. Exposure to CO CO2 at 10−5 Pa reduce current 22% 49%, depending specific partial pressure exposure time. Such a reduction fully recovered continuous under high 10−6 Pa. increase current, but stability is...
In this work, we have investigated the crystalline structure, martensitic transformation (MT) and magnetic properties of Co50V25-xNixGa25 (x = 5, 6, 7, 8, 9, 12.5) together with Co50V17Ni7Ga26 Heusler alloys. It was found that MT behavior can occur in Ni-doped Co50V25Ga25 alloys, temperature increases increase Ni doping, which reach about room as doping up to x 12.5. interval MT, decrease temperature, metamagnetic appears from ferromagnetic austenitic phase paramagnetic alloy. As a result,...
The extent of damage that is developed during the production, transportation, storage, and handling propellants after a low-velocity impact an important factor in evaluating dangerous threat such as deflagration-to-detonation transition. In this paper, friability test was performed to evaluate critical ignition velocity (CIIV), fragmentation degree, potential reaction violence four 3, 3-Bis(azidomethyl)oxetane (BAMO) tetrahydrofuran (THF) copolymer-propellants (PBT-propellants) with various...
A series of Ni55−x Fe x Mn20Ga25 (0 ≤ 5) Heusler alloys was prepared to investigate their phase transitions and magnetic properties. At room temperature, these present various crystal structures, the unit cell volume enlarges with increase content in both austenite martensite. Multiple magneto-structural transformations were observed parent alloy (x = 0). In process cooling, it undergoes martensitic transformation (MT) from L21-type paramagnetic L10-type ferromagnetic martensite,...
The effects of different diminished pressures on moving charge blast wave parameters were investigated by employing the AUTODYN software. Meanwhile, a theoretical calculation model was established to predict peak overpressure under pressure conditions and verified experimental data numerical simulations. Results indicate that can evaluate at effectively. As velocity increases, from increases when azimuth angle is less than 90°, but it decreases greater 90°. action range as ambient decreases.