Article
Engineering, Industrial
Zhaojie Chen, Jin Xie, Junhan Liu, Xiansong He, Cong Zhou
Summary: In the abrasive machining of monocrystalline silicon, the surface and subsurface behavior can be changed by utilizing the impulse discharge between the wheel metal and semiconductor silicon. This method drives a loose-abrasive flow, which results in nano-scale surface removal and thermal modification. The research focuses on the formation behavior of the abrasive-Si interface to improve the surface and subsurface integrity. The results show that the hybrid machining approach with mechanical cut-copying and impulse-discharge thermal modifying action can greatly enhance the surface integrity and form accuracy.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2023)
Article
Automation & Control Systems
Hongwei Pan, Zhidong Liu, Mingbo Qiu, Ming Zhang, Cong Deng
Summary: A concept of multichannel discharge WEDM under semiconductor characteristics was proposed to meet the increasing demand for wire electrical discharge machining (WEDM) under extreme conditions. Experiments on high-efficiency machining with multichannel discharge showed that it can achieve high machining efficiency, enhanced surface quality, and lower wear of electrode wire. The proposed multichannel discharge WEDM sets up the foundation for the establishment of the theoretical system of EDM under semiconductor characteristics.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Review
Automation & Control Systems
Noor Dzulaikha Daud, Md. Nazibul Hasan, Tanveer Saleh, Pei Ling Leow, Mohamed Sultan Mohamed Ali
Summary: This paper discusses the development and application of silicon micromachining techniques, and compares the capabilities and competencies of various non-traditional silicon micromachining techniques. The working principles, advantages, limitations, and previously fabricated silicon microstructures are discussed in detail. The study also summarizes the performance reported by multiple researchers on these micromachining methods.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Mechanical
Anmol S. Verma, Shankar Singh
Summary: This research explores the potential of using Wire Electro-discharge Machining (WEDM) for solar cell production and optimizes the parameters that affect wafering speed and surface roughness. The experimental results demonstrate that with the appropriate parameter settings, higher wafering speeds and lower surface roughness can be achieved.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2022)
Review
Chemistry, Multidisciplinary
Anna Capitaine, Beniamino Sciacca
Summary: Lead halide perovskite solar cells have attracted increasing attention, but their relatively low efficiency remains a challenge. While single-crystal materials show superior performance, polycrystalline thin films achieve higher efficiency in solar cells. To fully unleash the potential, a more holistic design of the device structure is needed for next-generation development.
ADVANCED MATERIALS
(2021)
Review
Materials Science, Multidisciplinary
Xuyang Zhu, Guangxian Li, John Mo, Songlin Ding
Summary: This paper reviewed the state-of-the-art technologies applied in machining semiconductors, summarized the advantages and disadvantages of each method, introduced the latest research outcomes, and discussed the future development trend.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Mechanical
Zhonghuai Wu, Liangchi Zhang, Weidong Liu
Summary: This paper comprehensively studied the structural anisotropy effect on the nanoscratching of 6H-SiC using large-scale molecular dynamics simulations. Different combinations of scratching conditions resulted in significant variations in scratching-induced deformation morphology, activated dislocations, and scratching forces due to the strong anisotropy effect of the material. The basal plane (0001) along < 1100 > direction was identified as the best combination for conducting nanoscratching on 6H-SiC.
Article
Engineering, Industrial
Chenxiang Zhang, Zhengyang Xu, Jiangwei Lu, Tianyu Geng
Summary: DF-ECDD is a compound machining method that combines electrical discharge machining (EDM) and electrochemical machining (ECM) simultaneously, reducing the stray electric field distribution on the workpiece surface. The conductivity of the external flushing liquid affects the stray current and stray corrosion areas on the workpiece surface, leading to the elimination of stray corrosion with the DF-ECDD process.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2021)
Article
Materials Science, Coatings & Films
J. I. Ahuir-Torres, H. R. Kotadia, T. T. Opoz
Summary: Titanium alloys, such as Ti6Al4V, are widely used in the biomedical industry for implants. However, they can corrode in the presence of bodily fluids, affecting their lifespan. This study examined the corrosion resistance of Ti6Al4V in body fluid using various EDM techniques. The results showed that samples prepared with water had the best corrosion resistance, while those prepared with oil had the lowest. The thickness of the oxide layer influenced the corrosion resistance.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Engineering, Industrial
Chaoqun Wu, Shiyu Cao, Yong Jie Zhao, Huan Qi, Xiaoling Liu, Gongyu Liu, Jianglong Guo, Hao Nan Li
Summary: The introduction of small-sized functional features on CFRPs is challenging yet in demand. A new non-contact cutting method called PAWEDM has been proposed, showing potential to enhance CFRP performance.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Wei Wan, Changxin Tang, Jianjie Zhang, Lang Zhou
Summary: The mechanical performance of silicon wafers in different orientations under the influence of point defects was systematically investigated through molecular dynamics methods. Anisotropic mechanical behavior with fracture phenomena was observed in monocrystalline silicon during uniaxial deformation, with exponential reduction in properties like yield strength and elastic strain energy release caused by point defects.
Review
Materials Science, Multidisciplinary
Sergey N. Grigoriev, Khaled Hamdy, Marina A. Volosova, Anna A. Okunkova, Sergey V. Fedorov
Summary: Ceramics are widely used in engineering applications due to their unique properties, but their high hardness and brittleness make traditional machining difficult. Electrical discharge machining is considered a method for machining non-conductive ceramics. However, current results of ceramic machining using electrical discharge still fall short of expectations.
MATERIALS & DESIGN
(2021)
Article
Materials Science, Ceramics
Aiyang Wang, Lanxin Hu, Qianglong He, Chun Liu, Tian Tian, Zhixiao Zhang, Chenhong Yi, Fan Zhang, Weimin Wang, Hao Wang, Zhengyi Fu
Summary: The study found that adding 10% graphene nanoplatelets to B4C composites resulted in the highest electrical conductivity and lowest surface roughness, significantly improving the material removal rate. The material removal mechanisms were analyzed for different GNP contents, showing that increasing GNP content led to different removal methods.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Surya Prakasarao Chodisetti, V. K. Malik, B. Venkata Manoj Kumar
Summary: Highly dense electrically conductive silicon carbide-titanium boride composites with Y2O3-AlN additives were fabricated via spark plasma sintering in a nitrogen atmosphere. Increasing TiB2 content improved hardness and fracture toughness, while sintering in nitrogen atmosphere increased electrical conductivity of the composites.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Minghao Gao, Ming Liu, Jianqing Han, Qinhe Zhang
Summary: This study proposed an internal flushing slotted electrode EDM technology and investigated the effects of pulse width, pulse interval, and flushing pressure on its performance through experiments. The results indicate that proper parameter settings can improve processing efficiency and reduce electrode wear.
