Results 101 to 110 of about 5,876 (143)

Self-Lubricated Modification for Silicon Nitride Ceramic Ball Surface

STLE/ASME 2010 International Joint Tribology Conference, 2010
Some thin films were prepared as solid lubricants on the surfaces of silicon nitride ceramic disk and ball. DLC film about 500–800 nm thickness was deposited on the ceramic surfaces using ion implantation and deposition technology. The surface roundness measure results, as well as 80 to 90 nm, showed that DLC film was shaped uniformly on the ceramic ...
Le Gu, Guangze Tang, Chuanwei Zhang, Cuini Jing, Liqin Wang   +4 more
openaire   +1 more source

Study on the Inherent Correlations of the Material Properties for Silicon Nitride Ceramic Balls

Advanced Materials Research, 2015
Silicon nitride ceramic balls are successfully applied in advanced bearings. In order to improve the performance and precision for ball bearings, the research about the material properties of Si3N4 ball is shown in this paper. For the Si3N4 ball, the material properties can be described by the following factors: density, hardness, apparent porosity ...
Ju Long Yuan, Long Fen Yu, Fan Li, Fen Fen Zhou, Ping Zhao, Wei Hang   +5 more
openaire   +1 more source

Analyzing the geometrical errors of silicon nitride-titanium nitride on performing electric discharge machining using response surface methodology

Proceedings of the Institution of mechanical engineers. Part E, journal of process mechanical engineering, 2023
Ceramic materials that find their applications in die extrusion and the balls used in bearings have a longer service life compared to that of traditional materials.
Selvarajan Lakshmanan, R. Rajendran, Senthil Kumar Shanmugakani, Venkataramanan Krishnamoorthy   +3 more
semanticscholar   +1 more source

Research on the friction, lubrication and temperature rise characteristics of silicon nitride full ceramic ball bearing at low temperature

Industrial Lubrication and Tribology, 2023
Purpose To understand the service performance of full ceramic ball bearings under extreme working conditions and improve their service life, dynamic characteristic tests of full ceramic ball bearings under ultra-low temperature conditions were carried out by a low-temperature bearing life testing machine, and ...
Jian Sun, Guangxiang Zhang, Zhongxian Xia, Zhigang Bao, Jinmei Yao, Xin Fang, Zhe Zhang, Renyun Guan   +7 more
openaire   +1 more source

Influence of Planetary High‐Energy Ball Milling on Microstructure and Mechanical Properties of Silicon Nitride Ceramics

Journal of the American Ceramic Society, 2005
The influence of ball‐milling methods on microstructure and mechanical properties of silicon nitride (Si 3 N 4 ) ceramics produced by pressureless sintering for a sintering additive from MgO–Al 2
Xue‐Jian Liu, Zhi‐Yong Huang, Xi‐Peng Pu, Xing‐Wei Sun, Li‐Ping Huang   +4 more
openaire   +1 more source

Influence of annealing temperature on thermal stabilities of hydrogenated amorphous carbon on silicon nitride balls

Vacuum, 2016
Hydrogenated amorphous carbon films were synthesized on silicon, silicon nitride (Si3N4) ceramic balls and SUS304 by using linear ion beam deposition technology.
Lei Huang, Juntang Yuan, C. Li, Zhenhua Wang, Tao Zhou, Zengbin Yin   +5 more
semanticscholar   +1 more source

Target Size Effects on Foreign Object Damage in Gas-Turbine Grade Silicon Nitrides by Ceramic Ball Projectiles

Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Education; Electric Power; Manufacturing Materials and Metallurgy, 2010
Foreign object damage (FOD) phenomena of two gas-turbine grade silicon nitrides (AS800 and SN282) were determined at ambient temperature using impact velocities ranging from 25 to 150 m/s by 1.59-mm diameter silicon nitride ball projectiles. Targets in flexure bar configuration with two different thicknesses of 1 and 2 mm were impacted under a fully ...
Sung R. Choi, Zsolt Ra´cz
openaire   +1 more source

Fabrication of pressureless sintered Si3N4 ceramic balls by powder injection molding

Ceramics International, 2019
Pressureless sintered Si3N4 ceramic balls were fabricated by powder injection molding technology. Yttria and alumina as a sintering aid were added to improve the sintered density.
C. Gal, G. Song, W. Baek, Hyung Kyu Kim, D. Lee, Ki Wook Lim, S. Park   +6 more
semanticscholar   +1 more source

Effect of Fracture Toughness on Surface Roughness in ELID Grinding of Silicon Nitride Ceramics for Ball Bearings

Journal of the Korean Society of Manufacturing Process Engineers, 2022
Seung-Min Lee, Ha-Neul Kim, Jae-Woong Ko, Tae-Soo Kwak   +3 more
openaire   +1 more source

Diamond Grinding of Ceramic Balls with a Circular Feed

Journal of Superhard Materials, 2023
S. V. Sokhan’, V. Voznyy, V. H. Sorochenko, M. P. Hamaniuk   +3 more
semanticscholar   +1 more source