Chouhan, Arvind Aggarwal, Akash Kumar, Arvind
Published in
Applied Physics A
Laser-assisted directed energy deposition is an additive manufacturing process used to manufacture metallic parts. The gas porosity is one of the prominent deposition defects in the processed parts. This influences the mechanical properties which can cause the part failure. In this work, the mechanism of gas porosity formation at low energy density...
Yang, Mingming Wang, Longlong Qiao, Xiaofen Liu, Yi Liu, Yufan Shi, Yafang Wu, Hongli Liang, Baolai Li, Xiaoli Zhao, Xiaohui
...
Published in
Nanoscale Research Letters
The defects into the hexagonal network of a sp2-hybridized carbon atom have been demonstrated to have a significant influence on intrinsic properties of graphene systems. In this paper, we presented a study of temperature-dependent Raman spectra of G peak and D’ band at low temperatures from 78 to 318 K in defective monolayer to few-layer graphene ...
Zheng, Bowen Gu, Grace X.
Published in
Nano-Micro Letters
Defects in graphene can profoundly impact its extraordinary properties, ultimately influencing the performances of graphene-based nanodevices. Methods to detect defects with atomic resolution in graphene can be technically demanding and involve complex sample preparations. An alternative approach is to observe the thermal vibration properties of th...
Fan, Lei Yao, Wenjuan Zhang, Zeping
Published in
Applied Physics A
The combination of vertical and in-plane heterostructures will create unprecedented structures that may produce novel physical properties. In this study, the failure mechanism of a bilayer Gr/h-BN staggered stacked heterostructure (BGBN-SS) with different interlayer sp3 bonds, different interface connection, and various defects has been investigate...
Chen, Ningli Yi, Xiaohui Zhuang, Jing Wei, Yuanzhi Zhang, Yanyan Wang, Fuyi Cao, Shaokui Li, Cheng Wang, Jizheng
Published in
Nano-Micro Letters
Perovskite solar cells (PSCs) are regarded as promising candidates for future renewable energy production. High-density defects in the perovskite films, however, lead to unsatisfactory device performances. Here, poly(propylene glycol) bis(2-aminopropyl ether) (PEA) additive is utilized to passivate the trap states in perovskite. The PEA molecules c...
BONNERIC, Matthieu BRUGGER, Charles SAINTIER, Nicolas
This study focuses on the influence of defect density on the sizes of the critical defects responsible for fatigue failure in AlSi7Mg0.6 alloy produced by Selective Laser Melting. Samples having similar microstructures and different defect densities were obtained combining Hot Isostatic Pressing and T6 treatments. Defect populations were analyzed u...
ANIA, Conchi Armstrong, Phillip Bandosz, Teresa Beguin, Francois Carvalho, Ana Celzard, Alain Frackowiak, Elzbieta Gilarranz, Miguel Laszlo, Krisztina Matos, Juan
...
This paper addresses the challenges of explaining the behavior of porous carbons in cutting-edge applications related to energy storage, catalysis, photocatalysis, and advanced separation based on reactive adsorption. It is a summary of the outcomes of the extensive discussion which took place during the workshop “Beyond Adsorption-II: new perspect...
Jo, Yongsu
Department of Materials Science and Engineering / Chemical vapor deposition method has been spotlighted as a tool growing large-area, good quality, mass-producible and uniform graphene. In particular, the copper that grows a uniform monolayer of graphene has attracted researchers??? attentions as a graphene growth substrate. However, CVD graphene g...
Movafeghi, Amir Mirzapour, Mahdi Yahaghi, Effat
Published in
Journal of Nondestructive Evaluation
X-rays and gamma rays are used in industrial radiography to detect internal defects and different structures of the test object. The radiography interpreters must be able to evaluate and interpret the radiography images as accurately as possible. To improve the operator’s image perception and interpretation, the quality of radiographs can be enhanc...
Senturk, Ahmet Emin
Published in
Applied Physics A
Experimentally fabricated two-dimensional (2D) carbon-based nanomaterials have received significant attention because of their ultra-high physical properties, in recent years. In this manuscript, the thermal conductivity (TC) and mechanical response of 2D B3C3 and C3N3 structures are studied in detail, using molecular dynamics (MD) simulations. The...
