Review
Materials Science, Multidisciplinary
M. K. G. Abbas, S. Ramesh, S. F. H. Tasfy, K. Y. Sara Lee
Summary: This review provides a comprehensive overview of alumina-zirconia composites (ATZs), including the properties of zirconia and alumina ceramics, methods for combining them, and the effects of sintering conditions on their performance. Previous studies have reached a consensus on the influence of sintering temperature, sintering time, and alumina content, and microwave sintering has demonstrated superiority. By understanding the factors influencing ATZ, tailored composites with desired properties can be produced for specific applications.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Jianqi Chen, Weili Wang, Xiaoning Sun, Guoxun Sun, Yanjie Liang
Summary: Nacre-like alumina ceramics with zirconia particles uniformly distributed between the layers are successfully fabricated using freeze casting and hot pressing. The addition of zirconia greatly improves the flexural strength and fracture toughness of the material. Microstructure observation and fracture behavior analysis reveal that the enhanced mechanical properties are attributed to the bioinspired nacre-like structure and stress-induced transformation toughening.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Ceramics
Maoyin Li, Bart Van Meerbeek, Bensu Tunca, Stevan Cokic, Jef Vleugels, Fei Zhang
Summary: Three different alumina sources were used to prepare 12Ce-TZP-based alumina-toughened-zirconia (ATZ) composites, showing significant differences in microstructure and properties. Boehmite-based composites exhibited higher indentation fracture resistance, strength, and reliability compared to aluminium nitrate and alumina-particle based equivalents.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Physical
Hiroto Nakai, Masanao Inokoshi, Kosuke Nozaki, Kumiko Yoshihara, Akihiro Matsukawa, Noriyuki Nagaoka, Watcharapong Tonprasong, Shunsuke Minakuchi
Summary: In this study, the surface morphology, surface texture, and osteoblast response of additively manufactured zirconia and alumina-toughened zirconia (ATZ) were evaluated in comparison with titanium. The results showed that the additively manufactured zirconia had comparable or better cell response compared to titanium, indicating its potential as a promising dental implant material.
Article
Materials Science, Ceramics
Y. H. Su, P. P. Jing, Y. X. Li, D. L. Ma, F. Y. Yue, Y. X. Leng
Summary: Cu doping is used to improve the lubrication and fracture toughness of zirconia-toughened alumina (ZTA) in total hip arthroplasty. The study investigates the effect of Cu doping on the biocompatibility of ZTA ceramics. Cu doping reduces the stability of tetragonal zirconia, resulting in a phase transition and pore formation on the ZTA surface. Cu doping enhances the adhesion and viability of osteoblasts, but influences the morphology and pro-inflammatory response of macrophages.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
M. K. G. Abbas, S. Ramesh, K. Y. Sara Lee, Y. H. Wong, C. Y. Tan, U. Johnson Alengaram, P. Ganesan, Farayi Musharavati, Erfan Zalnezhad
Summary: The effect of copper oxide doping on the densification, microstructure evolution, and mechanical characteristics of alumina toughened zirconia ceramic composites was investigated. The addition of 0.2 wt% copper oxide improved densification and mechanical properties without affecting the phase stability, while higher dopant levels were detrimental to the material.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Chun Cheng, Yingqian Fu, Chengxin Du, Guang Li, Shuang Zhao, Zhonghua Du, Kun Zhong, Feng Zhou, Zhaoxiu Jiang
Summary: In this study, a finite element model was established to investigate the oblique penetration behavior of a short-rod projectile into a thin metal target. The simulation results showed that the critical ricochet velocity and ultimate penetration velocity of the projectile increased with the increase in target plate obliquity. The velocity attenuation and residual mass of the projectile varied with the impact velocity, and the included angle decreased gradually. This study provides important insights into the critical ricochet and ultimate penetration of projectiles, as well as the velocity, mass, and trajectory changes during penetration and the damage to the target plate.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2022)
Article
Materials Science, Ceramics
Nouhaila Khalile, Clemence Petit, Christophe Meunier, Francois Valdivieso
Summary: This study investigates the influence of zirconia on the microwave sintering of zirconia-toughened alumina. Through sintering experiments using different types of zirconia powders, it was found that 8 mol% yttria-stabilized zirconia exhibited better densification when sintered without susceptor. The behavior of the samples during the intermediate stage of sintering also showed variations, with the samples containing 3 and 8 mol% yttria-stabilized zirconia being easier to densify compared to the samples with unstabilized and 10 mol% ceria-stabilized zirconia. These differences can be attributed to the chemical composition of zirconia.
CERAMICS INTERNATIONAL
(2023)
Article
Biochemistry & Molecular Biology
Alessandro Alan Porporati, Yvonne Modinger, Sarah Fischer, Sara Polajzer, Melanie Mettang, Ulrike Deisinger, Matejka Podlogar, Rihard Trebse, Nika Lovsin
Summary: Ten percent of patients undergoing total hip arthroplasty (THA) require revision surgery. The study compared the toxicity and immunogenicity of nanoparticles from Al2O3, zirconia-toughened alumina (ZTA), and cobalt chrome (CoCr) in THP-1 macrophage cell line and human primary macrophages. Results showed that ZTA is a non-toxic implant material with no immunogenic effects in vitro.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Chae-Young Lee, Sujin Lee, Jang-Hoon Ha, Jongman Lee, In-Hyuck Song, Kyoung-Seok Moon
Summary: Porous ceramics with high chemical and thermal stability, especially reticulated porous ceramics, exhibit high porosity and good permeability. By adjusting processing conditions, the compressive strength of reticulated porous ZTA can be improved.
APPLIED SCIENCES-BASEL
(2021)
Article
Materials Science, Ceramics
Seema Patil, Deepak Rajaram Patil, In Chul Jung, Jungho Ryu
Summary: This study systematically investigated the effect of cooling rates on the microstructural evolution and residual stress of ATZ composites after sintering. The results showed that the ATZ composite with a cooling rate of -1 degrees C/min exhibited the highest fracture toughness and the lowest tensile residual stress.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Jide Han, Berfu Goksel, Shiva Mohajernia, Manuela Sonja Killian, Jozef Vleugels, Annabel Braem, Sylvie Castagne
Summary: Zirconia toughened alumina (ZTA) is commonly used in hip joint implants and cutting tools due to its unique properties. The difference in material properties between zirconia and alumina phases leads to the selectivity of phase melting and the disintegration of alumina grains during laser processing. This selective phase melting phenomenon makes the material removal mechanism of the nanocomposite significantly different from that of single-phase materials.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Jose D. Avila, Amit Bandyopadhyay
Summary: The use of Ti64 alloy reinforced with ZTA can effectively address the galvanic-induced corrosion failure issue when coupling CoCr alloy femoral heads with titanium hip stems. After parameter optimization, the Ti64 + 5wt.%ZTA (5ZTA) composition showed a more reliable interface, reduced porosity, and increased hardness.
Article
Materials Science, Ceramics
Y. Wade-Zhu, J. Wade-Zhu, H. Wu, J. Binner, B. Vaidhyanathan
Summary: The ballistic impact performance of nanocrystalline zirconia-toughened alumina (nZTA) ceramics was compared to monolithic alumina, showing no significant advantage in penetration resistance. Deformation analysis of fragments indicated that both nZTA and alumina experienced similar levels of plastic deformation, with finer fragments exhibiting more plastic deformation. These results were further confirmed through fracture surface observations and subsurface dislocation analysis using SEM and TEM.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Physical
Rui Yang, Kuiwu Li, Likui Yin, Kai Ren, Yu Cheng, Taotao Li, Jianping Fu, Taiyong Zhao, Zhigang Chen, Jinlong Yang
Summary: This study aims to improve the penetration ability of a 14.5 mm standard armor-piercing projectile into ceramic/armor steel composite armor. By utilizing ZTA ceramic composite bullet, the penetration performance was enhanced, and experiments, simulations, and theoretical analysis were conducted. The results showed that the ZTA ceramic composite projectile performed better in penetrating RHA and Al2O3/RHA composite armor.
Article
Engineering, Civil
Salamat Ullah, Jianyu Zhou, Jinghui Zhang, Chao Zhou, Haiyang Wang, Yang Zhong, Bo Wang, Rui Li
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
(2020)
Article
Optics
Chenhao Gao, Bo Wang
Article
Materials Science, Ceramics
Bo Wang, Yongping Pu, Yu Shi, Xu Guo, Lei Zhang, Liangliang Chang, Jingwei Li, Run Li, Jiamin Ji, Tianchen Wei
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2020)
Article
Nanoscience & Nanotechnology
Jinwei Zhang, Ping Li, Xinning Zhang, Xiaojie Ma, Bo Wang
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Optics
Yuan Jin, Xin Feng, Duo Li, Jiadai Xue, Bo Wang, Yanji Yang, Fei Ding
Article
Engineering, Electrical & Electronic
Bo Wang, Jing Zhang, Yong Yu, Xu Zhang, Dianguo Xu
Summary: This article introduces a unified complex vector field-weakening control scheme to address the cross-coupling between the inner current and outer voltage loops in high-speed drives of induction motors. The study shows that the scheme can reduce current ripple and voltage overshoot.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Nanoscience & Nanotechnology
Yuhua Cao, Xiaoge Chen, Xiang Li, Bo Wang
Summary: PPCPs have raised concerns due to their potential toxicities, and metal-organic frameworks (MOFs) are being explored for their effective elimination. Among these, Zr-based MOFs are considered as attractive candidates for micropollutants removal, detoxification, and systematic study of structure-activity relationship.
ACS APPLIED NANO MATERIALS
(2021)
Article
Criminology & Penology
Bo Wang
Summary: The article discusses the legal treatment of honesty mistakes in rulings such as R v Barton [2020] 3 WLR 1333 and Ivey v Genting Casinos [2018] AC 391. While these rulings have not changed the doctrine of mistake of fact or civil law, they have impacted the application of the law regarding honesty mistakes, particularly in determining criminal liability.
JOURNAL OF CRIMINAL LAW
(2022)
Article
Engineering, Biomedical
Yumei Wang, Yingqian Xu, Zhi Zhang, Ye He, Zongkun Hou, Zhibin Zhao, Jia Deng, Rui Qing, Bochu Wang, Shilei Hao
Summary: Keratins are promising candidates for hemostatic agents, but their development has been hindered by the complexity of their structure. Utilizing a recombinant synthesis approach, different types of keratins can be expressed and studied for the design of high-performance keratin hemostatic agents. Research findings suggest that mutating keratins with high α-helical content can significantly enhance their hemostatic efficiency.
ADVANCED HEALTHCARE MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Haosheng Xiang, Bochu Wang, Mengqiu Zhong, Wenguang Liu, Dehai Yu, Yilong Wang, Kam C. Tam, Guofu Zhou, Zhen Zhang
Summary: This paper introduces a sustainable method for preparing superhydrophobic cellulose nanocrystals through the self-polymerization reaction of tannic acid and octadecylamine. By coating the superhydrophobic nanocrystals on different substrates, functions such as waterproofing, antifouling, and others can be achieved, demonstrating their promising applications in various fields.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Engineering, Chemical
Yunyun Li, Xiang Li, Xiyan Xu, Bo Wang
Summary: The study synthesized hierarchical porous adsorbent based on ZIF-8 using a template-induced strategy and found significant enhancement in adsorption rate for various pharmaceuticals like ibuprofen. The hierarchical porous ZIF-8 showed high selectivity and offered novel insight into selectively eliminating diverse micropollutants.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Criminology & Penology
Bo Wang
Summary: The Law Commission has proposed a new offence of cyberflashing, but its proposal lacks comprehensive evaluation of existing law and fails to balance the harm of a criminal conviction against the potential harm of cyberflashing. Modifying existing communication offences or harassment offences would offer more protection to victims.
JOURNAL OF CRIMINAL LAW
(2023)
Article
Law
Bo Wang
Summary: This article compares the English and Chinese approaches to criminal liability of participants in crime, noting significant differences in intent requirement and sentencing practices between the two legal systems.
JOURNAL OF INTERNATIONAL AND COMPARATIVE LAW
(2021)
Article
Materials Science, Biomaterials
Feiyan Gao, Wenfeng Li, Jinlan Kan, Yi Ding, Yumei Wang, Jia Deng, Rui Qing, Bochu Wang, Shilei Hao
ADVANCED BIOSYSTEMS
(2020)
Review
Chemistry, Multidisciplinary
Jie Li, Xuechun Jing, Qingqing Li, Siwu Li, Xing Gao, Xiao Feng, Bo Wang
CHEMICAL SOCIETY REVIEWS
(2020)
Article
Mechanics
Rawan Aqel, Patrick Severson, Rani Elhajjar
Summary: A novel core splice joint configuration for composite sandwich structures is studied and proposed to improve the strength and toughness. Experimental and numerical efforts show that this configuration can significantly increase the ultimate strength by 13% to 51% and the toughness by 2% to 35%.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Xianheng Wang, Cong Chen, Jinsong Zhang, Xinming Qiu
Summary: In this paper, a new form-finding method based on spatial elastica model (FMSE) is proposed for elastic gridshells. The method integrates the deformations of elastic rods into the overall deformation of the gridshell, and solves a set of transcendental equations using the quasi-Newton method to ensure the deformation satisfies the given boundary conditions. The method is validated through experiments and expected to have potential applications in the investigations of elastic gridshells.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Hao Huang, Zitong Guo, Zhongde Shan, Zheng Sun, Jianhua Liu, Dong Wang, Wang Wang, Jiale Liu, Chenchen Tan
Summary: The conventional evaluation of 3D braided composites' mechanical properties through numerical and experimental methodologies hinders material application due to the expenses, time constraints, and laborious efforts involved. This study establishes a multi-scale finite element model and a surrogate model for predicting the elastic properties of 3D4D rotary braided composites with voids. By optimizing a neural network model, the results are validated and provide valuable insights into the microstructure and properties of these composites.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Xinyu Li, Hao Zhang, Haiyang Yang, Junrong Luo, Zhongmin Xiao, Hongshuai Lei
Summary: Due to their excellent mechanical properties and design flexibility, fluted-core composite sandwich structures have gained significant attention in aerospace and rail transit applications. This study investigated the free-vibration characteristics and optimized design of composite fluted-core sandwich cylinders through theoretical models and experimental tests.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Chao Li, Chunzheng Duan, Xiaodong Tian, Chao Wang
Summary: A mechanistic model considering the bottom edge cutting effect and the anisotropic characteristics of the material is proposed in this paper to accurately predict cutting forces. The model was validated through a series of milling experiments and can be used to predict the cutting force of various parts of the cutter and any feed direction.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Camila Sanches Schimidt, Leopoldo Pisanelli Rodrigues de Oliveira, Carlos De Marqui Jr
Summary: This work investigates the vibro-acoustic performance of graded piezoelectric metamaterial plates. The study shows that piezoelectric metamaterial plates with reconfigurable properties can provide enhanced vibration and sound power attenuation.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Jun Ke, Li-jie Liu, Zhen-yu Wu, Zhong-ping Le, Luo Bao, Dong-wei Luo
Summary: Compared with other green natural fibers, ramie has higher mechanical properties and lower cost. In this study, ramie and glass fiber are made into composite circular tubes. The results show that the hybrid circular tube with ramie and glass fiber has improved torsional mechanical properties and reduced weight and cost. The failure mechanisms are affected by the loading direction and the content of each fiber.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Natalia Pingaro, Gabriele Milani
Summary: This paper proposes an enhanced analytical model for predicting the behavior of FRCM samples tested under standard tensile tests. The model takes into account the interaction between fibers and matrix through the interface, and assumes different material properties at different phases. By solving a second order linear differential equation, an analytical solution can be obtained. The model is validated with experimental data and shows good predictability.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Jialiang Fan, Anastasios P. Vassilopoulos, Veronique Michaud
Summary: This article investigates the effects of voids, joint geometry, and test conditions on the fracture performance of thick adhesive Double Cantilever Beam (DCB) joints. It concludes that grooved DCB joints with low void content tested at low displacement rates showed stable crack propagation without significant crack path deviation.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Auwalu I. Mohammed, Kaarthikeyan Raghupathy, Osvaldo De Victoria Garcia Baltazar, Lawson Onokpasah, Roger Carvalho, Anders Mogensen, Farzaneh Hassani, James Njuguna
Summary: This study investigates the performance of composite pressure vessels under damaged and undamaged conditions, providing insights into their reliability and residual strength capabilities. The results demonstrate that the damage profile and its effect on compressive strength are similar between damaged and non-damaged cylinders. When subjected to quasi-static compression, the polyethylene liner absorbs enough elastic strain energy to recover without plastic deformation. Additionally, quasi-static compression has little to no influence on the axial strength of the cylinders. The damage characterization reveals fiber breakage, delamination, local buckling, and brooming failure. This study has direct implications for the safety design tolerances, manufacturing strategies, and operational failure conditions of composite overwrapped pressure vessels (COPVs).
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Muhammad Irfan Shirazi, Samir Khatir, Djilali Boutchicha, Magd Abdel Wahab
Summary: Structural health monitoring is important to ensure the safety of components and structures. This study proposes a method using finite element models and 1D-CNN network to extract and classify vibration responses for crack detection. The results show that the proposed approach is effective in real-time damage detection.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Maryam Mirsalehi, Kiarash Kianpour, Sharif Shahbeyk, Mohammad Bakhshi
Summary: This study comprehensively investigates the one-way response of 3D-woven sandwich panels (3DWSPs) and their interfering parameters, providing interpretation of elastic and failure results, failure maps, and reliable theoretical models for linear elastic response and observed failure mechanisms.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Yiming Zhao, Zhonggang Wang, Zhigang Yang, Bin Qin
Summary: The paper proposes a Ritz and statistical energy analysis (Ritz SEA) hybrid method for calculating rectangular plate acoustic vibration coupling in the mid-frequency range. This method combines the fast convergence and ability to handle arbitrary boundary conditions of the Ritz method with the power flow equation of the statistical energy analysis method. The results show that this approach effectively filters out random fluctuations in mid-frequency domains while demonstrating exceptional stability and precision.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Joao Henrique Fonseca, Woojung Jang, Dosuck Han, Naksoo Kim, Hyungyil Lee
Summary: This study addresses the enhancement of an injection-molded fiber-reinforced plastic / metal hybrid automotive structure and its plastic injection molding process through the integration of the finite element method, artificial intelligence, and evolutionary search methods. Experimental validation of finite element models, the generation of a database through orthogonal array and Latin hypercube methods, and the training of artificial neural networks are conducted. The genetic optimization algorithm is then applied to identify optimal process parameters. The results show significant reduction in product warpage and manufacturing time while maintaining structural strength, contributing to the advancement of composite automotive structures with superior quality.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Alessandro Vescovini, Carina Xiaochen Li, Javier Paz Mendez, Bo Cheng Jin, Andrea Manes, Chiara Bisagni
Summary: This paper presents a study on six single-stringer specimens manufactured using the card-sliding technique with non-crimp fabrics and adopting a Double-Double (DD) stacking sequence. The specimens were tested under compression loading conditions to investigate post-buckling and failure in aerospace structures. Experimental results and numerical simulations were compared to analyze the behavior and failure modes of the specimens. The study found promising evidence of a viable solution to optimize aeronautical structures and enhance resistance to skin-stringer separation, particularly with the use of tapered flanges.
COMPOSITE STRUCTURES
(2024)