Effect of Coated PHB on Properties of Abradable Seal Coating
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2014年第3期
论文作者：程旭东 XIANG Hongyu YE Weiping MENG Xiaoming MIN Jie LIU Minzhi ZHANG Pu LU Wei
文章页码：417 - 421
摘 要：As pore-forming materials, the coated poly-p-hydroxybenzoate（short for PHB） and h-BN can be applied in the preparation of abradable seal coatings at high temperature. The characteristics of coating such as morphology, thermal stability and composition were studied by SEM, EDS and FTIR. The results show that the modifi ed PHB will change the remained carbon amount, porosity and pore morphology of the coating, which can affect the properties of coatings. If the pore is small enough in uniform distribution, the coating with 5 MPa bond strength, 30-55 HR45Y superfi cial hardness and certain of carbon can be suitable to well abradability.
程旭东1，XIANG Hongyu1,2，YE Weiping2，MENG Xiaoming2，MIN Jie1，LIU Minzhi1，ZHANG Pu1，LU Wei1
1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology2. College of Materials Science and Engineering, Wuhan University of Technology
摘 要：As pore-forming materials, the coated poly-p-hydroxybenzoate（short for PHB） and h-BN can be applied in the preparation of abradable seal coatings at high temperature. The characteristics of coating such as morphology, thermal stability and composition were studied by SEM, EDS and FTIR. The results show that the modifi ed PHB will change the remained carbon amount, porosity and pore morphology of the coating, which can affect the properties of coatings. If the pore is small enough in uniform distribution, the coating with 5 MPa bond strength, 30-55 HR45Y superfi cial hardness and certain of carbon can be suitable to well abradability.
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