Friction and wear properties of αFeSi2–Si alloy,ReSi1.8 and MoSi2 in ethyl alcohol |
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| Affiliation: | 1. Key Laboratory of Fishery Drug Development, Ministry of Agriculture and Rural Affairs, Key Laboratory of Aquatic Animal Immune Technology, Guangdong Province, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, Guangdong province 510380, China;2. China Blue Sustainability Institute, Haikou, Hainan province 570203, China;3. Hainan Tilapia Sustainability Alliance, Haikou, Hainan province 570203, China;4. Hainan YuPu Biotechnology Co., Ltd, Haikou, Hainan province 571135, China;1. Department of Pediatrics, Sapporo Medical University School of Medicine, Sapporo, Japan;2. Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan;3. Department of Infection Control and Laboratory Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan;4. Division of Infection Control, Sapporo Medical University Hospital, Sapporo, Japan;5. Department of Pediatrics, Motomachi Children''s Clinic, Sapporo, Japan;6. Department of Pediatrics, Nihira Children''s Clinic, Sapporo, Japan;7. Department of Pediatrics, Sunagawa City Hospital, Sunagawa, Japan;8. Graduate School of Health Science, Gunma Paz University, Takasaki, Japan;1. Department of Poultry Production, Faculty of Agriculture (El-Shatby), University of Alexandria, Alexandria, Egypt;2. Department of Genetics, Faculty of Agriculture (El-Shatby), University of Alexandria, Alexandria, Egypt |
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| Abstract: | In this study, Fe–X at% Si alloy (X=70.5, 80.0 and 96.0), Re–64.3 at% Si and Mo–66.7 at% Si disk specimens were prepared by spark plasma sintering, and their friction and wear properties were investigated when they were slid against Si3N4 ball specimens in ethyl alcohol. The friction and wear properties of Si ingots were also examined. Fe–70.5 at% Si, Fe–80.0 at% Si, Fe–96.0 at% Si and Re–64.3 at% Si disk specimens exhibited friction coefficients as low as 0.15. It is considered that the low friction of the Fe–70.5 at% Si, Fe–80.5 at% Si and Fe–96.0 at% Si disk specimens was due to the formation of low friction silicon alkoxide and polyoxysilane on the worn surfaces of the disk specimens and the paired ball specimens. Re–64.3 at% Si disk specimens exhibited the highest microvickers hardness of all the disk specimens prepared in this study. In addition, the microvickers hardness of the Fe–X at% Si (X=70.5, 80.0, 96.0 and 100) disk specimen increased with increasing the Si content. Moreover, it was difficult to obtain dense Fe–90.0 at% Si disk specimens by sintering the annealed and crushed Fe–90.0 at% Si powder. However, dense Fe–96.0 at% Si disk specimens could be obtained by sintering the Fe–90.0 at% Si powder at 1403 K. |
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| Keywords: | Silicides Spark plasma sintering Ethanol Boundary lubrication |
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