Article
Engineering, Mechanical
Ashish K. Kasar, Kevin P. Watson, Brian D'Souza, Pradeep L. Menezes
Summary: A novel set of Al2O3-B2O3-CaO composites were manufactured using cold press-sintering. The effects of B2O3 content and relative humidity on the properties of the composites were investigated. The in-situ formed aluminum borate enhanced micro-hardness and wear resistance, while the humidity-sensitive alumina phase reduced friction. Addition of CaO improved relative density, hardness, and wear resistance.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Engineering, Mechanical
Ashish K. Kasar, Md Hafizur Rahman, Brian D'Souza, Pradeep L. Menezes
Summary: A novel ceramic - phosphonium based ionic liquids (P-ILs) system is developed via vacuum impregnation to achieve superior tribological performance without continuous lubricant supply. The tribological performance of the P-IL+ceramic system depends on the thermal response of the ILs, which is further correlated with the density and viscosity of P-ILs controlling the supply of lubricants at the sliding interface.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Liting Fu, Xuguang Zhao, Zhu Meng, Jing Zhang, Gang Chu
Summary: A series of LaBO3:Pr3+ luminescent materials were prepared using lanthanum nitrate hexahydrate and boric acid as raw materials, glycine as combustion agent and praseodymium nitrate hexahydrate as modifier. The phase structure, micro morphology and ionic valence of the materials were analyzed, and the fluorescence properties of the materials were characterized. The results showed that Pr3+ ions successfully entered the lattice of LaBO3 after calcination at 850 degrees C for 4 hours. The main luminescence peak of LaBO3:Pr3+ powder was located at 670 nm at the excitation wavelength of 448 nm, and the luminescence intensity was the highest when the doping ratio was 0.03.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Engineering, Mechanical
Wang Lin, Boshui Chen, Jianhua Fang, Kecheng Gu, Jiang Wu
Summary: This study synthesized two different sizes of lanthanum borate nanospheres to improve the tribological performance of soybean oils, with the 50 nm nanospheres showing superior performance. The nanospheres were able to form a uniform tribofilm, reducing friction and wear effectively.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Leticia Raquel de Oliveira, Tulio Alves Rodrigues, Henara Lillian Costa, Washington Martins da Silva Jr
Summary: The development and application of nanolubricants have the potential to reduce friction and wear in automotive systems. This study evaluated the addition of iron oxide nanoparticles to PAO 8 base oil and found that the nanoparticles improved scuffing resistance and reduced wear rates. The lubricants with nanoparticles were able to withstand high loads and maintain a low friction coefficient.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Engineering, Mechanical
Juozas Padgurskas, Eyioma Izuwah Johns, Irina Radulescu, Alexandru Valentin Radulescu, Raimundas Rukuiz, Valentinas Snitka, Raimondas Kreivaitis, Arturas Kupc, Darius Volskis
Summary: The possibility of producing biogrease using rapeseed oil, beeswax, functional additives, and various carbon nanoparticles as a base oil, thickener, and modifiers were evaluated. Tribological tests and rheological characterization were conducted to investigate the physical and chemical properties of the greases. The results show that the rheological parameters exhibit non-Newtonian behavior with temperature variations. While increasing the proportion of beeswax deteriorates the tribological properties, the functional additives and nanoparticles significantly improve the thermal properties, viscosity, yield stress, and tribological properties, leading to a reduced wear rate.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Energy & Fuels
Yashvir Singh, Nishant Kumar Singh, Abhishek Sharma, Amneesh Singla, Deepak Singh, Erween Abd Rahim
Summary: The combination of vegetable oil and nanoparticles can effectively reduce pollution from synthetic esters disposal and decrease the depletion of petroleum reserves. It was found in the experiment that adding 0.5% zinc oxide nanoparticles can effectively reduce the coefficient of friction and decrease the wear of the pin.
Article
Materials Science, Multidisciplinary
Yu Zhang, Bingxu Wang, Feng Qiu, Hongyu Yang, Gary C. Barber
Summary: The addition of TiC-TiB2 ceramic nanoparticles can decrease the amount of widmanstatten structure, promote the formation of finer pearlite, and refine the grains in annealed carbon steels. In wear tests, the nanoparticles reduce the wear volume loss and enhance the anti-wear performance of carbon steels. This research provides a new method to improve the wear performance of carbon steel components.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Multidisciplinary
Xiangxiang Cui, Zhenyu Zhang, Shiqiang Yu, Xin Chen, Chunjing Shi, Hongxiu Zhou, Fanning Meng, Jiaxin Yu, Wei Wen
Summary: In this study, a novel environmentally friendly chemical mechanical polishing (CMP) method was developed to achieve a sub-angstrom surface roughness of silicon. The use of non-toxic and non-polluting slurries in CMP resulted in a surface roughness of 0.067 nm, which is the lowest reported in such a large area. The study also proposed new insights into the fabrication of a sub-angstrom surface of silicon for use in IC, semiconductor, and microelectronic industries.
Article
Chemistry, Physical
Kecheng Gu, Wang Lin, Xin Yuan, Hongye Peng, Shunxiang Wang, Jiacheng Lv, Zaifa Zhu
Summary: A two-dimensional calcium borate nanoslice capped with stearic acid (SACB) was synthesized and its friction-reducing and antiwear performance in rapeseed oil was investigated. The results showed that SACB exhibited excellent dispersing stability in rapeseed oil and significantly enhanced the antiwear and friction-reducing abilities of the oil.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
M. I. Sayyed, M. S. Sadeq, Kh. S. Shaaban, A. F. Abd El-Rehim, Atif Mossad Ali, H. Y. Morshidy
Summary: This study prepared borate glass systems containing lanthanum oxide (La2O3), nickel oxide (NiO), and sodium oxide (Na2O) using the melt quenching technique with varying La2O3/B2O3 contents. The glasses' structural, optical, and radiation shielding characteristics were investigated. It was found that increasing La2O3/B2O3 contents led to increased density, decreased molar volume, and increased average bond density. Additionally, the glasses exhibited enhanced radiation shielding properties with higher La2O3 additions, making them good candidates for radiation shielding materials.
Article
Thermodynamics
Suman Dey, Narath Moni Reang, Madhujit Deb, Pankaj Kumar Das
Summary: This study focuses on the combustion and emission characteristics of cerium oxide added palm biodiesel blends in a diesel engine, showing improved brake thermal efficiency and reduced emissions. Friction and wear study revealed that CeO2 added biodiesel blends diluted with lubricant can reduce coefficient of friction and specific wear rate compared to diesel contaminated lubricant.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Polymer Science
Pollyana Grazielle Luz Da Rocha, Matheus Goncalves Leao De Oliveira, Paulo Vitor Franca Lemos, Larissa Alves De Sousa Costa, Lucimar Pacheco Gomes Da Rocha, Adelson Ribeiro De Almeida Junior, Jania Betania Alves Da Silva
Summary: This study aimed to prepare and characterize cellulose nanocrystals as an additive to water-based lubricating fluid. The results showed that cellulose nanocrystals significantly improved the performance of the lubricating fluid by reducing the coefficient of friction and decreasing the wear rate.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Chemistry, Physical
N. Wantana, E. Kaewnuam, N. Chanlek, H. J. Kim, J. Kaewkhao
Summary: The Gd2O3-La2O3-ZnO-B2O3-Eu2O3 glasses with different Gd2O3 concentration were studied for their physical, structural, optical, and luminescence properties. Increasing Gd2O3 content led to higher density and refractive index. The main construction in the glass was found to be BO3 and BO4 borate complexes, which were more disturbed with increasing Gd2O3. The glasses exhibited absorption in the UV-NIR region and showed strong Eu3+ photoluminescence.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Ravikiran Nowduru, Bolla Reddy Bodapati, Pavan Kumar Penumakala, Sai Ram Krishna Malladi, Pawan Kumar Jain, Vadali Venkata Satya Siva Srikanth
Summary: Spheroidal carbon soot particles with heliocentric graphitic layers were prepared from wasted rubber and exhibited excellent performance as lubricant additives, reducing friction and wear. The particles acted as nano-bearings, rolling between contacting surfaces, and showed multi-functional ability by improving viscosity retention at higher temperatures.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Zhengfeng Jia, Pipeng Zhao, Junjie Ni, Xin Shao, Limin Zhao, Baoxu Huang, Bo Ge, Chaolei Ban
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2017)
Article
Materials Science, Multidisciplinary
Zhengfeng Jia, Haoqi Li, Yao Zhao, Laszlo Frazer, Bosen Qian, Eric Borguet, Fei Ren, Dmitriy A. Dikin
JOURNAL OF MATERIALS SCIENCE
(2017)
Article
Engineering, Multidisciplinary
YanQiu Xia, YiChao Hu, Xin Feng, Teng Ma
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2018)
Article
Metallurgy & Metallurgical Engineering
Chaolei Ban, Shuqin Zhu, Jie Ma, Fangreng Wang, Zhengfeng Jia, Jie Wang
ANTI-CORROSION METHODS AND MATERIALS
(2018)
Article
Materials Science, Multidisciplinary
Zhengfeng Jia, Haoqi Li, Yao Zhao, Dmitriy A. Dikin, Junjie Ni, Limin Zhao, Jinming Zhen, Bo Ge, Xin Shao, Fei Ren
JOURNAL OF MATERIALS SCIENCE
(2018)
Article
Materials Science, Multidisciplinary
Zhengfeng Cao, Yanqiu Xia
JOURNAL OF MATERIALS SCIENCE
(2018)
Article
Engineering, Mechanical
Xiang Xi, Yanqiu Xia, Yichao Hu
TRIBOLOGY TRANSACTIONS
(2018)
Article
Engineering, Chemical
Xin Feng, Yichao Hu, Yanqiu Xia
LUBRICATION SCIENCE
(2019)
Article
Chemistry, Physical
Tiantian Bi, Huaqing Fang, Jinlong Jiang, Xingxing He, Xuan Zhen, Hua Yang, Zhiqiang Wei, Zhengfeng Jia
JOURNAL OF ALLOYS AND COMPOUNDS
(2019)
Article
Engineering, Mechanical
Ming Yang, Zhengfeng Jia, Denghu Wei, Yunxia Wang, Xianjuan Pang, Jinming Zhen, Ran Zhang, Bo Yu
INDUSTRIAL LUBRICATION AND TRIBOLOGY
(2020)
Article
Materials Science, Multidisciplinary
Ming Yang, Zhengfeng Jia, Xianjuan Pang, Xin Shao, Jinming Zhen, Ran Zhang, Junjie Ni, Jinlong Jiang, Bo Yu
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2019)
Article
Materials Science, Multidisciplinary
Lining Wu, Yanqiu Xia, Shenzhan Xiong, Hao Wu, Zhongshan Chen
Summary: Ionic liquid-modified nano-titanium dioxide can improve the thermal stability of greases, while their concentration has a significant influence on the conductivity and tribological properties of the greases. Grease containing 1.5% additives exhibited good friction reduction and anti-wear abilities, attributed to the synergistic effects of ionic liquids and solid additives promoting the formation of lubricating films on the worn surfaces.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Engineering, Chemical
Xin Feng, Chenglong Hu, Yanqiu Xia, Yuanhui Wang
Summary: In this study, PANI/MoS2 composites doped with hydrochloric acid were successfully synthesized and their tribological and electrical properties were evaluated. The results showed that PANI/MoS2 composites exhibited better performance compared to PANI and MoS2 additives alone, indicating a synergistic effect between MoS2 and polyaniline modifier.
LUBRICATION SCIENCE
(2022)
Article
Polymer Science
Chao Zang, Yaping Xing, Tingting Yang, Qi Teng, Jinming Zhen, Ran Zhang, Zhengfeng Jia, Weifang Han
Summary: This study investigated the application of phenolic-matrix/hexagonal boron nitride nanocomposites on 316L steel. The results showed that the tribological properties of the coatings were significantly improved after heat treatment, which could be attributed to the transformation of chemical bonds and the cross-linking of prepolymers.
Article
Materials Science, Multidisciplinary
Hao Wu, Yanqiu Xia, Zhengfeng Cao, Lining Wu
Summary: A series of silver doped chromium nitride (CrN-Ag) coatings were prepared by magnetron sputtering to obtain sliding electrical contact materials with good conductivity and wear resistance. The hardness, elastic modulus, chemical composition, and surface morphology of the coatings were characterized. The tribological properties and conductivities of the prepared CrN-Ag coatings were investigated at low and high current densities. The addition of Ag regulated the properties of the coatings, and the coating with 23 wt% Ag content showed the best conductive and tribological properties. The conductivity and wear resistance were mainly influenced by the Ag content of the coatings, as revealed by the analysis of the worn surfaces.
MATERIALS RESEARCH EXPRESS
(2023)
