Article
Engineering, Manufacturing
Zhigang Dong, Shucheng Liu, Renke Kang, Yan Bao
Summary: The thickness of the maximum undistorted chip (a(gmax)) has a significant impact on the grinding removal properties of SiO2f/SiO2 composites, affecting grinding force, surface roughness, and chip size. The primary removal modes of SiO2f/SiO2 composites are crack propagation, fiber cracking, matrix breaking, and interface debonding. Controlling a(gmax) can enhance the grinding surface quality of SiO2f/SiO2 composites.
MATERIALS AND MANUFACTURING PROCESSES
(2023)
Article
Mechanics
Longxu Yao, Zhanqiang Liu, Qinghua Song, Bing Wang, Yukui Cai
Summary: This study developed a prediction model for the axial and transverse grinding force components in rotary ultrasonic end grinding (RUEG) of SiO2f/SiO2 ceramic matrix composites. The model was validated by experimental results and the influence mechanism of process parameters on the grinding force components was explained.
COMPOSITE STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Longxu Yao, Zhanqiang Liu, Qinghua Song, Bing Wang, Yukui Cai, Jinfu Zhao
Summary: This paper presents a numerical model to predict surface morphology for grinding of SiO2f/SiO2 ceramic matrix composite. Both conventional face grinding and rotary ultrasonic face grinding processes were simulated and the predicted surface morphology was validated with experimental results. The study reveals the influence of fiber orientations and machining parameters on ground surface quality, and the benefits of ultrasonic-assisted vibration in improving ground surface quality. The study also highlights the importance of effectively fracturing fibers on the ground surface for the ultrasonic hammering effect to exert its process advantage.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Ceramics
Haohan Wang, Jinghuang Lin, Jian Cao, Junlei Qi
Summary: This study thoroughly explores the interfacial reaction mechanism of joints of SiO2f/SiO2 composite-brazed bismuth glass, providing insights for the design of brazing glasses for joining SiO2f/SiO2 composites.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Yawei Zhang, Weikang Liu, Zhiwei Gui, Shenhua Zhou, Zhida Ren
Summary: In this study, the damage mechanisms of SiO2f/SiO2 woven ceramic matrix composites under compressive impact were analyzed using the split Hopkinson pressure bar experiment and finite element analysis. The results showed that the composites lacked sufficient plasticity to restrain the propagation of micro-cracks under high strain rates, leading to the formation of adiabatic shear zones. Plastic fracture, characterized by fiber yarn fracture, matrix fracture, and interfacial debonding, was the major failure mode of the composites.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
Viktor Molnar
Summary: 3D surface roughness measurement is less mature than its 2D version, but this study introduces a method to minimize the evaluated surface area, which could help industrial applications in reducing measurement time and cost.
Article
Automation & Control Systems
Guoqiang Yin, Jiahui Wang, Yunyun Guan, Dong Wang, Yao Sun
Summary: This paper investigates the relationship between processing parameters and characteristic parameters of acoustic emission signals during the grinding of difficult-to-machine metallic materials. The study analyzes the variation of characteristic parameters and spectrum of AE signals with grinding depth, grinding wheel velocity, and feed velocity, and establishes a corresponding relationship between AE signal parameters and machining surface roughness. A multi-information fusion algorithm based on BP neural network is used to predict and recognize surface roughness, and the model is further optimized using genetic algorithm to improve prediction accuracy.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Wei Li, Changjin Long, WenQian Ma, Feifan Ke, Wei Feng
Summary: This paper introduces a method for improving the processing quality of 3D C/C-SiC composites using laser-assisted precision grinding technology. By adjusting laser parameters to control the depth of the thermally induced damage layer and reduce the material's hard brittleness, precision grinding with a grinding wheel is performed. Experimental results show that laser-assisted grinding can significantly reduce normal grinding force, tangential grinding force, specific grinding energy, and surface roughness compared to conventional grinding processes. Laser irradiation also reduces the degree of brittle fracture and improves the material's processing performance.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Engineering, Mechanical
Yunguang Zhou, Chuanchuan Tian, Hongyang Li, Lianjie Ma, Ming Li, Guoqiang Yin
Summary: Ceramic matrix composites play a crucial role in aviation, aerospace, and other fields as high-temperature structural materials. However, their difficult-to-machine characteristics lead to challenges in material removal, grinding efficiency, and surface quality. This study investigates the grinding removal mechanism of carbon fiber toughened ceramic matrix composites using an electroplated diamond grinding wheel. The influence of grinding parameters on surface roughness and morphology is also examined. The findings reveal the primary removal mechanism of 2.5D-C/SiC composites and provide important insights for grinding ceramic matrix composites.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2022)
Article
Materials Science, Ceramics
Yuting Zhang, Xingyu Fan, Zhou Yang, Chanchan Zhou, Yang Li
Summary: In this study, a combined vacuum impregnation and sol-gel method was used to prepare 2.5D SiO2f/SiO2 ceramic composites with good mechanical properties in both warp and weft direction. The forming process was explained by measuring phase change and weight gain. The mechanical properties and fracture mechanism of the composites were systematically analyzed. The results showed that the composite with the highest flexural strength was obtained in the weft direction, and the failure mechanism changed from ductile fracture to brittle fracture with the increase of temperature.
CERAMICS INTERNATIONAL
(2023)
Article
Automation & Control Systems
Wei Li, Gui Long, Feng Shi, Shenlei Zhou, Jia Yin, Jun Yang
Summary: The grinding machinability of 3D C/C-SiC composite material was systematically studied in this research, focusing on the impact of machining conditions and the material removal mechanism. The study revealed the importance of fiber orientation and residual stress during the grinding process, providing valuable insights for high-quality processing of 3D C/C-SiC composite material parts.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Hui Fu, Liping Jiang, Qinghua Song, Zhanqiang Liu, Jiawei Tong, Cheng Cao
Summary: This paper proposes an innovative surface roughness predictive model for silicon nitride ceramics grinding based on the dynamic grinding force model. By establishing a dynamic grinding force model and leveraging the frequency domain characteristics with the Convolutional Neural Network, the predictive model achieves accurate prediction of surface roughness.
CERAMICS INTERNATIONAL
(2023)
Article
Automation & Control Systems
Shuai Pan, Lianjie Ma, Xueqiao Yu, Quan Shan
Summary: This study investigates the characteristic frequency of vibration in quick-point grinding of fluorophlogopite and proposes the characteristic frequency deviation rate to study its impact on surface roughness. The influence of five process parameters on the deviation rate and surface roughness is also explored. The study proposes a modified model for predicting surface roughness that includes both vibration characteristic parameters and process parameters, which improves the accuracy of the prediction model.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Jingzhu Pang, Xia Ji, Yan Niu, Shaojun Chen
Summary: Laser ablation can improve the surface quality of zirconia ceramics, reduce grinding force, and enhance material removal rate.
Article
Automation & Control Systems
Peng Gu, Chuanmin Zhu, Zhan Tao, Yiqing Yu
Summary: This study investigated the grinding mechanism of SiCp/Al composites through Hopkinson pressure bar tests, single abrasive grain grinding experiments, and the establishment of grinding force prediction models. Various grinding mechanism models were proposed, and debonding at the interface of silicon carbides and aluminum alloy was observed. The research provides theoretical support for the study of surface quality in SiCp/Al composites.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Tianyi Sui, Baoyu Song, Feng Zhang, Qingxiang Yang
JOURNAL OF NANOMATERIALS
(2015)
Article
Chemistry, Multidisciplinary
Tianyi Sui, Baoyu Song, Feng Zhang, Qingxiang Yang
Article
Materials Science, Ceramics
Tianyi Sui, Mei Ding, Chunhui Ji, Shuai Yan, Jinhua Wei, Anying Wang, Feifei Zhao, Jixiong Fei
CERAMICS INTERNATIONAL
(2018)
Article
Chemistry, Multidisciplinary
Tianyi Sui, Baoyu Song, Feng Zhang, Yuanyuan Chen, Shuai Yan, Anying Wang, Mei Ding
Article
Materials Science, Ceramics
Tian-yi Sui, Yu-xiao Cui, Bin Lin, Da-wei Zhang
CERAMICS INTERNATIONAL
(2018)
Article
Chemistry, Physical
Chunhui Ji, Shuangqiu Sun, Zaiwei Liu, Tianyi Sui
MOLECULAR SIMULATION
(2018)
Article
Chemistry, Multidisciplinary
Bin Lin, Mei Ding, Tianyi Sui, Yuxiao Cui, Shuai Yan, Xibei Liu
Article
Engineering, Mechanical
Bin Lin, Anying Wang, Tianyi Sui, Chibin Wei, Jinhua Wei, Shuai Yan
SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
(2020)
Article
Engineering, Mechanical
Anying Wang, Bin Lin, Hongbo Zou, Chibin Wei, Yaqi Meng, Tianyi Sui, Shuai Yan
SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
(2020)
Article
Physics, Condensed Matter
Bin Lin, Chibin Wei, Anying Wang, Hongbo Zou, Xiaofeng Zhang, Tianyi Sui, Shuai Yan
JOURNAL OF PHYSICS-CONDENSED MATTER
(2020)
Article
Engineering, Mechanical
Lichao Li, Mei Ding, Bin Lin, Benyang Zhang, Yuhang Zhang, Tianyi Sui
Summary: This study investigates the effect of nanoparticles on the lubrication performance of Si3N4 ceramics and the importance of surface film generation in reducing the running-in period. The results show that nanoparticles gradually form a surface film on the wear surface, ultimately achieving dynamic balance.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Engineering, Aerospace
Feifei Zhao, Bin Lin, Yuanping He, Tianyi Sui
Summary: Precision and low damage grinding is important for improving the efficiency of aviation optical elements. The interaction of abrasive trajectory affects the surface and subsurface morphology and damage. The study explores the interference mechanism and damage accumulation of cross scratches, and finds that the crossing angle, damage radius, and duration of cutting force affect the depth and length of damage.
CHINESE JOURNAL OF AERONAUTICS
(2022)
Article
Instruments & Instrumentation
Junfan Fu, Bin Lin, Tianhe Pei, Tianyi Sui, Baokun Dong
Summary: This paper investigates the potential capabilities of broad-bandwidth transducers in terms of compatibility with different horns and proposes a design method for highly compatible tools. The effects of shape, dimensionless size, and order number on compatibility are studied. Various experiments are conducted to explore the effects of these factors on amplitude and quality factor, and to verify the feasibility of using a broad-bandwidth transducer that is compatible with different tools.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2023)
Article
Engineering, Electrical & Electronic
Haoji Wang, Jinhua Wei, Bin Lin, Yuan Zhang, Hetian Hou, Tianyi Sui
Summary: A novel method is proposed to precisely predict the quantitative effect of geometric deformation on the resonant frequency offset of microwave cavity systems using explicit expressions. The analysis is not limited to any specific cavity shapes or certain forms of deformation, which indicates a wide application prospect of our method. The accumulative effect of electric and magnetic fields during the deformation process is observed here for the first time and taken into account to achieve an ultrahigh estimation precision beyond that of the traditional perturbation theory.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2023)
