Article
Mechanics
Soham Mane, Rui Huang
Summary: This study investigates the wrinkling and bifurcations between an elastic thin film and a pre-stretched elastomer substrate with a viscoelastic layer. The evolution of wrinkle wavelength and amplitude depends on the strain rate and the thickness of the viscoelastic layer. By varying the substrate pre-stretch and the thickness ratio, different bifurcation modes can be induced.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2022)
Article
Materials Science, Ceramics
Xu Jiang, Jie Sun, Xiaojie Chai, Yifan Chen, Wei Zhang, Jun Jiang, Anquan Jiang
Summary: The study found that the wall current varies with the angle between the applied electric field and the initial polarization, and that the oxygen vacancy concentration can be controlled through thermal annealing, affecting the magnitude of the domain wall current.
CERAMICS INTERNATIONAL
(2021)
Article
Physics, Applied
So Yeon Lim, Min Sun Park, Ahyoung Kim, Sang Mo Yang
Summary: The study investigated the nonlinear response of domain wall velocity to an external electric field in ferroelectric Si-doped HfO2 thin film capacitors. The results confirmed the reliability of PFM images and observed thermally activated creep and flow regimes. The thin film was found to have random-field defects with a dynamic exponent of mu = 1, consistent with the Lorentzian distribution of characteristic switching time indicated in the switching current data.
APPLIED PHYSICS LETTERS
(2021)
Article
Thermodynamics
Shuai Xu, Jian Pu, Jian-hua Wang, Yun Chen, Wei-long Wu
Summary: The combined effects of flow parameters and geometrical parameters on the film cooling performances and flow mechanisms of cratered-hole were investigated. The results showed that the position and size of the crater had individual and combined influences on the film effectiveness. The mainstream cross-flow environment introduced new mechanisms for film cooling of cratered-hole and posed new requirements for crater configuration. Wall contouring improved the uniformity of film coverage but reduced the effectiveness improvement brought by the crater. Fine design is needed to balance the conflicting requirements of crater configuration.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Nanoscience & Nanotechnology
Kalani Moore, Eoghan N. O'Connell, Sinead M. Griffin, Clive Downing, Louise Colfer, Michael Schmidt, Valeria Nicolosi, Ursel Bangert, Lynette Keeney, Michele Conroy
Summary: This study shows that the thin-film Aurivillius phase Bi6TixFeyMnzO18 is an ideal material platform for domain wall and vortex topology-based nanoelectronic devices. The presence and structure of charged domain walls are revealed using atomic-resolution electron microscopy. Moreover, it is found that polar vortex-type topologies also form at out-of-phase boundaries of stacking faults. The study suggests the potential for strain engineering to control the formation of polar vortex topology in other multiferroic thin films.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Peter Alexander Wierenga, Elke Simeonova Basheva, Roy Jozef Bernard Marie Delahaije
Summary: This study explores differences in foam stability observed among similar beer samples from different breweries and finds that these differences are primarily attributed to differences in coalescence. The foam stability varies among samples, but the ranking is consistent across different foaming methods, indicating its independence from other factors. The measured interfacial or bulk properties cannot account for the differences, suggesting the need for new experimental and theoretical methods to better understand foam stability.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2023)
Article
Mechanics
Charu Datt, Minkush Kansal, Jacco H. Snoeijer
Summary: Thin-film flows of viscoelastic fluids play an important role in both industrial and biological applications. While there is a well-developed understanding of thin viscous film flows in Newtonian fluids, the study of thin-film flows of viscoelastic fluids is still relatively limited. In this paper, we derive the thin-film equation for a second-order fluid and apply it to investigate the Landau-Levich dip-coating problem, shedding light on the influence of viscoelasticity on the thickness of deposited films and addressing discrepancies in existing literature.
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS
(2022)
Article
Materials Science, Ceramics
Qiqi Peng, Xu Jiang, Yifan Chen, Wei Zhang, Jun Jiang, Anquan Jiang
Summary: The study presents a method to achieve large domain wall currents at high domain wall densities, which has potential applications in future nanosensors and nonvolatile memories.
CERAMICS INTERNATIONAL
(2021)
Article
Mechanics
B. Veltkamp, K. P. Velikov, D. Bonn
Summary: In this study, the squeeze flow of thin fluid layers during high velocity impact on a solid surface was experimentally investigated. It was found that the amount of viscous dissipation determines the remaining fluid in the contact after the object's kinetic energy is absorbed. Newtonian and shear thinning fluids can be completely drained from the contact on a short time scale, while viscoelastic liquids cannot be drained due to their elastic tendency to retract back into the contact after rapid squeezing. Furthermore, the experimental results were consistent with the predictions of hydrodynamic theory applied to the fluid flow in the gap.
JOURNAL OF FLUID MECHANICS
(2022)
Article
Engineering, Electrical & Electronic
Wenping Geng, Jinlong He, Xiaojun Qiao, Liya Niu, Caiqin Zhao, Gang Xue, Kaixi Bi, Linyu Mei, Xiangjian Wang, Xiujian Chou
Summary: This study investigated the domain wall current of single crystal LiNbO3 thin film and fabricated a packaged DWC temperature sensor. The experiment showed that DWC has a negative temperature coefficient and a high current on-off ratio of 103.
IEEE ELECTRON DEVICE LETTERS
(2021)
Editorial Material
Mechanics
Oliver E. Jensen
Summary: The article explores the characteristics of slender viscous and elastic-viscoplastic sheets, focusing on regimes where bending deformations dominate stretching. The results reveal a rich phenomenology and provide new theoretical tools for probing thin layers of soft materials.
JOURNAL OF FLUID MECHANICS
(2021)
Article
Mechanics
Yi Wang, Xinbo Cui, Haoran Fu, Qi Zhao, Yuhang Li
Summary: This article develops an analytical model for the linear free vibrations of a buckled thin film attached to a flexible substrate, and finds that the stiffness and damping of the substrate have negative effects on the natural frequencies of the system.
JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
(2021)
Article
Mechanics
Fang Li, Dongdong He
Summary: The study found that the outer fluid can significantly affect the structure of viscoelastic threads, particularly inducing the formation of secondary droplets on the filament. Decreasing the tube radius leads to an increase in secondary droplet size, but has little effect on the morphology of the thread.
JOURNAL OF FLUID MECHANICS
(2021)
Article
Energy & Fuels
Lin Sun, Xue-Hui Sun, Yong-Chang Zhang, Jun Xin, Hong-Ying Sun, Yi-Bo Li, Wan-Fen Pu, Jin-Yu Tang, Bing Wei
Summary: This study comprehensively investigates the decay processes of CHSB foams with different NaCl concentrations, revealing the mechanisms behind the enhanced foam stability in high salinity conditions.
Article
Engineering, Ocean
Shengsheng Xia, Yingjie Wei, Cong Wang
Summary: The study used a co-simulation method to investigate high-speed water entry of shells with different slopes, finding that the slope of the shell significantly impacts cavity evolution, motion characteristics, and structural response.
APPLIED OCEAN RESEARCH
(2023)
Article
Thermodynamics
A. S. Ortiz-Perez, L. A. Davalos-Orozco
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2015)
Article
Thermodynamics
M. Moctezuma-Sanchez, L. A. Davalos-Orozco
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2015)
Article
Thermodynamics
I. J. Hernandez Hernandez, L. A. Davalos-Orozco
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2015)
Article
Physics, Multidisciplinary
L. A. Davalos-Orozco
Article
Mechanics
L. A. Davalos-Orozco
Article
Engineering, Aerospace
L. A. Davalos-Orozco
MICROGRAVITY SCIENCE AND TECHNOLOGY
(2018)
Article
Thermodynamics
A. S. Ortiz-Perez, L. A. Davalos-Orozco
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2014)
Article
Thermodynamics
Ildebrando Perez-Reyes, Luis Antonio Davalos-Orozco
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME
(2018)
Article
Mechanics
I. Perez-Reyes, L. A. Davalos-Orozco
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS
(2014)
Article
Engineering, Aerospace
L. A. Davalos-Orozco
MICROGRAVITY SCIENCE AND TECHNOLOGY
(2020)
Article
Thermodynamics
Luis Antonio Davalos-Orozco, Jose Antonio Ruiz Diaz
Summary: This study investigates the linear natural convection of a Maxwell viscoelastic fluid with Cattaneo-Christov heat flux constitutive equation between two thick walls with finite thermal conductivity. The viscoelastic fluid and the heat flux exhibit different relaxation times. The focus is on the criticality curves for different thicknesses ratio D and thermal conductivities ratio X. It is found that the criticality curves stabilize in the middle range of log X depending on other parameters, but the behavior changes with the Prandtl number and heat flux relaxation time.
JOURNAL OF NON-EQUILIBRIUM THERMODYNAMICS
(2023)
Article
Engineering, Aerospace
L. A. Davalos-Orozco, Isabel M. Sanchez Barrera
Summary: The linear and nonlinear thermocapillary instability of a liquid layer above or below a thick horizontal wall with slip effect under gravity is investigated. Important findings regarding the stabilizing and destabilizing effects of parameters are revealed.
MICROGRAVITY SCIENCE AND TECHNOLOGY
(2022)
Article
Thermodynamics
Luis Antonio Davalos-Orozco
INTERFACIAL PHENOMENA AND HEAT TRANSFER
(2017)
Article
Thermodynamics
L. A. Davalos-Orozco
INTERFACIAL PHENOMENA AND HEAT TRANSFER
(2017)
Review
Thermodynamics
L. A. Davalos-Orozco
INTERFACIAL PHENOMENA AND HEAT TRANSFER
(2016)
