Article
Materials Science, Ceramics
Haoqian Zhang, Qiang Liu, Biao Zhang, Jian Ye, Yicheng Jin, Zhaoxin Zhong, Yang Wang, Hao Liu, Feng Ye
Summary: The study shows that the designed microstructures have a significant impact on the mechanical properties of porous Si3N4 ceramics, but a less obvious effect on the dielectric properties. The dielectric constant can be reliably designed based on the porosity, and the mechanical properties can be optimized through microstructure.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Coatings & Films
Seokhwi Song, Eungju Kim, Kyunghoo Kim, Jangho Bae, Jinho Lee, Chang Hwa Jung, Hanjin Lim, Hyeongtag Jeon
Summary: In this study, the crystallographic and electrical properties of ZrO2 thin films prepared by an ozone-based atomic layer deposition process were investigated. The results showed that increasing the concentration of O-3 improved the stability of the tetragonal phase and the dielectric constant of the ZrO2 film, but it also led to a deterioration in leakage current density.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2023)
Article
Cell Biology
Her-Hsiung Huang, Zhi-Hwa Chen, Diem Thuy Nguyen, Chuan-Ming Tseng, Chiang-Sang Chen, Jean-Heng Chang
Summary: This study examined the effects of different crystal structures of TiO2 on blood coagulation properties. The presence of rutile structures was found to be associated with a higher dielectric constant, leading to increased blood clotting, fibrin network formation, and platelet adhesion.
Article
Nanoscience & Nanotechnology
Khoe Van Nguyen, Shih-Yen Lin, Yia-Chung Chang
Summary: The transfer characteristics of p-doped graphene/monolayer-MoS2 heterostructure at 300 K were experimentally measured and analyzed based on a model calculation. The Poisson equation was discretized into multiple zones, and the Boltzmann transport equation was solved in the relaxation-time approximation using inelastic acoustic phonon scattering in the model. The relationship between the Dirac voltage and the Fermi energy was derived, and the results obtained without and with optical pumping agreed well with experimental data.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2021)
Article
Chemistry, Analytical
Rodolfo Sanchez-Fraga, Margarita Tecpoyotl-Torres, Israel Mejia, Jorge Omar Manon, Luis Eduardo Riestra, Jesus Alcantar-Pena
Summary: This article documents the design, manufacture, and testing process of a silicon inertial optical sensor for low-frequency applications. Three accelerometer designs were considered and the one with the best performance at low frequency was chosen. The feasibility of using micro-machined sensing elements for high-resolution measurement of mechanical vibrations was also studied.
Article
Materials Science, Multidisciplinary
Weijian Sun, Haonan Zheng, Yi Chen, Changhao Li, Baoxiang Wang, Chuncheng Hao, Zhaoliang Xing
Summary: The study demonstrated the successful preparation of core-shell hollow TiO2@SiO2 spheres for electrorheological (ER) fluid material, which greatly enhanced its performance under various electric field strengths. The coated particles showed significant improvement in current meter performance, with shear stress values exceeding 200 Pa at 3.0 kV mm(-1). This innovative approach offers a promising ER candidate material with simple preparation and strong development potential.
ADVANCED ENGINEERING MATERIALS
(2021)
Article
Polymer Science
Alexander N. Tarasenkov, Maria S. Parshina, Galina P. Goncharuk, Kirill M. Borisov, Evgeniy K. Golubev, Ivan B. Meshkov, Georgiy V. Cherkaev, Vitaliy G. Shevchenko, Sergey A. Ponomarenko, Aziz M. Muzafarov
Summary: A series of thioether-containing zirconium siloxanes with different compositions and metal atom shielding degrees were synthesized and characterized. The introduction of thioether groups can lead to increased dielectric constant and conductivity in the cured compositions compared to sulfur-free analogs. Variations in the structure and functionality of sulfur-containing zirconium siloxanes can effectively change the dielectric and mechanical properties of the cured systems, making them potential candidates for dielectric elastomers.
Article
Chemistry, Physical
Moonjeong Jang, Dowon Jung, Jin Kim, Jaehee Cho, Soonmin Yim, Wooseok Song, Sung Myung, Sun Sook Lee, Ki-Seok An
Summary: Polymer-based multilayer films with tailored material properties show promise as gate dielectrics in electronic devices. Adding nano-scale ceramic or conductive fillers in a polymer matrix can significantly increase the dielectric constant, but controlling the dispersion and adhesion between fillers and matrix is challenging. In this study, a rational design process is proposed to achieve improved dielectric performance by incorporating conductive MXene and ceramic TiO2 into a polymeric matrix.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Polymer Science
Mingyun Peng, Ke Li, Bingliang Huang, Jie Cheng
Summary: The addition of PVDF to PI/TiO2 composite films significantly increases their dielectric constant and improves mechanical properties. With 50wt% PVDF particle loading, the properties of the composite films are significantly enhanced.
HIGH PERFORMANCE POLYMERS
(2022)
Article
Multidisciplinary Sciences
Dowon Song, Myoungho Jeong, Juhan Kim, Bongju Kim, Jae Ha Kim, Jae Hoon Kim, Kiyoung Lee, Yongsung Kim, Kookrin Char
Summary: Investigated the dielectric properties of an alloy of perovskite oxide BaHf0.6Ti0.4O3 (BHTO), and found it to have a large dielectric constant, high breakdown field, and low leakage current. The BHTO gate oxide can modulate the two-dimensional carrier density, allowing for different modes of field-effect transistors.
Article
Mathematics, Applied
Manisha Maity, Santimoy Kundu, Raju Kumhar, Shishir Gupta
Summary: This study investigates the dispersion and attenuation characteristics of Love waves propagating through a porous piezoelectric layer imperfectly bonded to an anisotropic surface layer and a piezoelectric substrate. A comparative graphical analysis is conducted to examine the influence of assumed parameters on the phase and attenuation phenomena of Love waves in stratified Earth's structures.
APPLIED MATHEMATICS AND COMPUTATION
(2022)
Article
Materials Science, Ceramics
Kanyapak Silakaew, Prasit Thongbai
Summary: The nBT@PVDF core-shell filler particles with improved dispersion can significantly enhance the dielectric properties of PVDF matrix nano-composites.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Geological
Yue Jiang, Hui Zhou, Jingjing Lu, Yang Gao
Summary: A series of constant mean stress tests considering principal stress axes rotation were conducted on hollow-cylinder sandstone. The relationship between the principal stress orientation and the rock mechanical properties was studied, and the fracture mechanism of the sandstone during the test was analyzed.
ROCK MECHANICS AND ROCK ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Jian Sun, Wei Wang, Chenguang Chang, Di Fu, Xiongbo Hao, Juan Li, Yutao Feng, Bingliang Hu
Summary: A novel and stable support structure for a near-infrared DASH interferometer is proposed in this study, with optimized parameters to improve its mechanical performance and thermal resistance.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Inorganic & Nuclear
S. Yonatan Mulushoa, N. Murali, Paulos Taddesse, A. Ramakrishna, D. Parajuli, Khalid Mujasam Batoo, Ritesh Verma, Rajesh Kumar, Y. B. Shankar Rao, Sajjad Hussain, K. Samatha
Summary: In this paper, the structural, dielectric, and magnetic properties of Ni-Cr substituted MgFe2O4 ferrite material synthesized via a solid-state process were investigated. The results showed that the samples exhibited a single-phase cubic spinel structure with small crystallite sizes. The material had good magnetic saturation and coercivity, as well as a decreasing dielectric constant and loss tangent with increasing applied field frequency.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Qing-Ying Ren, Li-Feng Wang, Jian-Qiu Huang, Cong Zhang, Qing-An Huang
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS
(2015)
Article
Chemistry, Analytical
Lili Gao, Zai-Fa Zhou, Qing-An Huang
Article
Chemistry, Analytical
Jia-Cheng Yu, Zai-Fa Zhou, Jia-Le Su, Chang-Feng Xia, Xin-Wei Zhang, Zong-Ze Wu, Qing-An Huang
Review
Chemistry, Analytical
Zai-Fa Zhou, Qing-An Huang
Article
Engineering, Electrical & Electronic
Cong Zhang, Li Guo, Li-Feng Wang, Jian-Qiu Huang, Qing-An Huang
ELECTRONICS LETTERS
(2014)
Article
Engineering, Electrical & Electronic
Bei Chen, Yan-Qing Zhu, Ming Qin, Qing-An Huang
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS
(2014)
Article
Engineering, Electrical & Electronic
Chao Sun, Zai-Fa Zhou, Wei-Hua Li, Qing-An Huang
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
(2014)
Article
Engineering, Electrical & Electronic
Y-Q Zhu, B. Chen, F. Gu, M. Qin, Q-A Huang
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
(2014)
Article
Engineering, Electrical & Electronic
Yan-qing Zhu, Lei Han, Ming Qin, Qing-an Huang
SENSORS AND ACTUATORS A-PHYSICAL
(2014)
Article
Materials Science, Multidisciplinary
Hai-Yun Liu, Wei-Hua Li, Zai-Fa Zhou, Qing-An Huang
Article
Chemistry, Analytical
Zhenyu Wei, Jianqiu Huang, Wenhao Chen, Qingan Huang
Summary: This study investigated flexible capacitive humidity sensors fabricated on porous PTFE substrates, utilizing a graphene oxide sensing material. An ethanol soak process was developed to enhance sensor yield, resulting in sensors with high sensitivity, low hysteresis, and fast response/recovery time.
Article
Chemistry, Analytical
Yi Zhou, Lei Dong, Chi Zhang, Lifeng Wang, Qingan Huang
Summary: This article introduces a method for detecting rotational speed using LC wireless sensors, where the peak amplitude induced in the readout LC tank corresponds to the rotation speed. The sensing system was simulated and optimized using ADS software, and a synchronous detection circuit was designed. Experimental results showed a maximum error of 0.279 rps for rotation speeds ranging from 16 rps to 41 rps.
Review
Chemistry, Analytical
Dong-Yan Chen, Lei Dong, Qing-An Huang
Summary: Parity-time (PT) symmetry challenges the theory that only Hermitian operators correspond to observable phenomena in quantum mechanics, as non-Hermitian Hamiltonians with PT symmetry also have a real-valued energy spectrum. In the field of LC passive wireless sensors, PT symmetry is used to improve performance in multi-parameter sensing, ultrahigh sensitivity, and longer interrogation distance. However, controversies exist regarding the noise and precision of PT-symmetric sensors. This review systematically presents the research status of PT-symmetric LC sensors in exact phase, exceptional point, and broken phase, highlighting the advantages of non-Hermitian sensing compared to classical LC sensing principles.
Article
Chemistry, Analytical
Zhenxiang Yi, Yishan Wang, Ming Qin, Qingan Huang
Summary: This study investigates the impact of dust on microelectromechanical system (MEMS) thermal wind sensors and evaluates their performance in practical applications. An equivalent circuit is established to analyze the temperature gradient influenced by dust accumulation on the sensor's surface. Finite element method (FEM) simulation is used to verify the proposed model. Experimental results show that the presence of dust on the sensor's surface slightly decreases the output voltage compared to the sensor without dust, leading to a reduction in measurement sensitivity and accuracy. With dustiness levels of 0.04 g/mL and 0.12 g/mL, the average voltage is reduced by approximately 1.91% and 3.75%, respectively. These findings provide guidance for the application of thermal wind sensors in harsh environments.
Article
Chemistry, Analytical
Zi-Chen Geng, Zai-Fa Zhou, Hui Dai, Qing-An Huang
