Development of coating on boiler tubes for higher efficient coal-fired generation plants

2017 Fiscal Year Final Research Report

• Project/Area Number: 26249098
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Composite materials/Surface and interface engineering
• Research Institution: Tomakomai National College of Technology
• Principal Investigator: Kurokawa Kazuya 苫小牧工業高等専門学校, 未登録, 校長 (00161779)
• Co-Investigator(Kenkyū-buntansha): 浅見 廣樹 苫小牧工業高等専門学校, 創造工学科, 准教授 (00547961) ; 沖中 憲之 北海道大学, 工学研究院, 准教授 (20250483) ; 高澤 幸治 苫小牧工業高等専門学校, 創造工学科, 准教授 (20331952) ; 松浦 清隆 北海道大学, 工学研究院, 特任教授 (60142692) ; 張 麗華 北海道大学, 工学研究院, 助教 (60719714) ; 坂口 紀史 北海道大学, 工学研究院, 准教授 (70344489)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 高温腐食 / 石炭火力 / ボイラー材料 / コーティング / サイアロン / 接合性

Outline of Final Research Achievements

The fundamental research on the development of the SiAlON coating technology superior in the abrasion and high-temperature corrosion resistance, that is applicable for boiler tubes for next-generation high efficiency coal-fired power plants, was carried out. New findings on adequate preparation of SiAlON for spray coating, improvement of bonding strength between SiAlON and heat-resistant alloys, and effects of additives on the growth process of deposited layer of the SiAlON in spray coating were obtained. In addition, new technique to clarify dopant distribution in SiAlON in atomic level was developed.

Free Research Field

高温材料化学