Feasibility study of tribological coating on bearing for small flywheel battery

2016 Fiscal Year Final Research Report

• Project/Area Number: 26630112
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Toyohashi University of Technology
• Principal Investigator: Takikawa Hirofumi 豊橋技術科学大学, 工学(系)研究科(研究院), 教授 (90226952)
• Research Collaborator: KIYOHARA Syuji 舞鶴工業高等専門学校, 電子制御工学科, 准教授 (40299326) ; KANEKO Satoru 神奈川県産業技術センター, その他部局等, 研究員 (40426359) ; TANOUE Hideto 北九州工業高等専門学校, 電気電子工学科, 講師 (50580578) ; SUDA Yoshiyuki 豊橋技術科学大学, 工学研究科, 准教授 (70301942) ; HARIGAI Toru 豊橋技術科学大学, 工学研究科, 助教 (20757108)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: トライボマテリアル / ダイヤモンドライクカーボン膜 / フィルタードアーク蒸着 / 積層化 / 軸受け / フライホイール / 耐摩耗性 / 相手材攻撃性

Outline of Final Research Achievements

The coating of ultra-low wear and friction film to existing bearing surface is one of the approaches to realize ultra-low wear and friction bearings required for small flywheel batteries. We established a technology to form amorphous carbon (DLC) films with different film quality, and made it possible to select film quality and characteristics according to the application. In addition, a laminated DLC/diamond film by depositing a DLC film on a polycrystalline diamond film and a multilayered DLC film consisted of DLC film layers with different film quality were fabricated, and these laminated films had low resistance of frictional wear and low aggressiveness to an opposite material compared with single-layer films. Improvement of tribology characteristics on bearings can be expected by selecting and using a suitable protective film

Free Research Field

プラズマ応用工学／薄膜／ナノ材料合成・表面処理／再生可能エネルギー