A5103272361- Gas Sensing Nanomaterials and Sensors
- Fiber-reinforced polymer composites
- Advanced ceramic materials synthesis
- MXene and MAX Phase Materials
- Aluminum Alloys Composites Properties
- Advanced Chemical Sensor Technologies
- Mechanical Behavior of Composites
- Structural Behavior of Reinforced Concrete
- Graphene research and applications
- Carbon Nanotubes in Composites
- Epoxy Resin Curing Processes
- 2D Materials and Applications
- Boron and Carbon Nanomaterials Research
- Advanced Numerical Analysis Techniques
- Advanced Sensor and Energy Harvesting Materials
- Concrete Corrosion and Durability
- Conducting polymers and applications
- Glass properties and applications
- Electrophoretic Deposition in Materials Science
- Advanced MEMS and NEMS Technologies
- Engineering Technology and Methodologies
- Adhesion, Friction, and Surface Interactions
- Cavitation Phenomena in Pumps
- Fuel Cells and Related Materials
- Manufacturing Process and Optimization
Harbin Institute of Technology
2013-2024
Nano and Advanced Materials Institute
2021
Heilongjiang Institute of Technology
2019
Harbin University
2019
Shanghai Shipbuilding Technology Research Institute
2012
Harbin Engineering University
2008
SnS<sub>2</sub>/rGO gas sensors were developed, with P–N transition response for room temperature ppb-level NO<sub>2</sub> detection and visible light illumination enhancement behavior.
Here, a high sensitivity gas sensing ink based on sulfonated rGO (S-rGO) decorated with SnS2 is synthesized for room temperature NO2 and NH3 detection. This demonstrated an excellent to ppb-level (17% response 125 ppb) sub-ppm-level (11% 1 ppm). The unique absorption properties of improve the S-rGO 4.2 55 times NH3, respectively. Besides, superhydrophobicity endows sensor exceptional immunity relative humidity (RH). Furthermore, sensors exhibit negligible degradation less than 15% in wide...
Transition-metal dichalcogenides (TMDs) have gained intense interest for their outstanding optoelectronic and electrochemical characteristics, utilized in versatile applications such as gas sensors photodetectors. However, TMD-based chemiresistors suffer from poor sensitivity at ppb-level detection, the experimental detection limit fails to reach 1 ppb. Herein, SnS2 QD/graphene nanoheterostructures functional flexible are fabricated NO2 light room temperature. The semiconductor type of...
Real-time wireless respiratory monitoring and biomarker analysis provide an attractive vision for noninvasive telemedicine such as the timely prevention of arrest or early diagnoses chronic diseases. Lightweight, wearable sensors are in high demand they meet requirement portability digital healthcare management. Meanwhile, high-performance sensing material plays a crucial role precise specific markers exhaled air, which represents complex rather humid environment. Here, we present liquid...
A systematic study on lattice dynamics of M n + 1 AlC ( = 1–3) phases using first‐principle calculations is reported, where the Raman‐active and infrared‐active (IR) modes are emphasized. The highest phonon wavenumber related to vibration C atoms. ‘imaginary wavenumber’ in spectrum Nb 3 2 contributes composition gap Nb‐Al‐C system (Nb 4 do appear experiments, but there no experimental reports ). full set IR‐active 211, 312, 413 AX identified, with corresponding Raman IR wavenumbers. have 4,...
The compressibility of Al-containing MAX carbides was investigated in details using first-principle calculations based on density functional theory. bond stiffness and angle as a function pressure were examined. M-Al is about 1/3–1/2 M-C stiffness. close to Al atoms has the highest M3AlC2 M4AlC3 phases, with similar other two bonds latter. Generally, strongest increases increasing VEC (Valence Electron Concentration), which also affects bonds. Of most importance, bulk moduli are 0.256 mean...
To understand the potential for use of Hf–Al–C ternary compounds, (HfC) n A l 3 C 2 (Hf Al 4 and Hf 5 ) 6 were investigated using density functional theory, including crystal structure, electronic compressibility, elastic properties. The theoretical (4.10–4.16 g/cm is higher than that (3.92–3.98 ), due to smaller number lighter Al–C layers. With increasing numbers Hf–C layers, bond lengths remain almost unchanged. In none compounds there a gap around Fermi energy ( E f which implies they are...
This paper proposes a laminate mode shape curvature (MSC) analysis method combining 2D continuous wavelet transform (2D-CWT) and convolutional neural network (CNN) technologies to address the delamination damage detection in composite laminated plates. constructs new model based on emerging CNN technology achieves good results by detecting through learning MSC images processed 2D-CWT. The train this study is constructed inserting randomly generated with varying geometric sizes, depth...
In this paper, we report a new method to predict the pin-assisted-melt impregnation of fiber bundle high-viscosity resin. An analytical model is established based on pulling single over pin located in melt pool. The depth studied as function diameter pin, line speed fiber, viscosity resin, pre-tension and width bundle. results show that level highly dependent width, but insensitive diameter, accord with previous reported experimental result.
We presented a preamplifier design for quartz tuning fork (QTF) sensors in which the stray capacitance is digitally compensated. In this design, manually controlled variable capacitor replaced by pair of varicap diodes, whose could be accurately tuned bias voltage. A circuit including single side low power operational amplifier, digital-to-analog converter, and microprocessor also described, process can conveniently carried out on personal computer. For noise level was investigated experimentally.
The macro-properties of CF/PPEK and CF/PPES, which are two kinds high performance thermoplastic composites, depend greatly on their interfacial structures. In this paper morphological structures the composites were investigated analyzed by X-ray photoelectron spectroscopy (XPS). results revealed that some new functional groups generated promoted strong physical chemical interactions interface between fiber matrix CF/PPES composites. High temperature bending properties tested analyzed,...
The heated-mandrel winding method (HMWM) is a new technology. However, the trial-and-error usually used not universally adopted in manufacturing process of shells that have different shapes and performance requirements. Determining heating for HMWM based on theoretical analysis has become an immediate problem. In this paper, numerical simulation program developed using finite element software ANSYS programming language APDL. entire process, which starts with ends complete curing, numerically...
High-emissivity coatings constitute an essential component of reusable thermal protection systems, determining the success or failure hypersonic spacecraft. Reaction-cured glass coating is basis for all current high-emissivity coatings, and study its sintering behavior great scientific significance development performance enhancement coating. Microstructures phase compositions samples before after process were determined using SEM, XRD, EDS. The temperature, inserting heating rate...