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Bonding of Silicon Nitride Ceramic Composite with RE_2O_3Al_2O_3SiO_2 Glass Solders
引用本文:周飞,李志章,罗启富.Bonding of Silicon Nitride Ceramic Composite with RE_2O_3Al_2O_3SiO_2 Glass Solders[J].中国稀土学报(英文版),1999(3).
作者姓名:周飞  李志章  罗启富
摘    要:Siliconnitrideceramichasaseriesofexcellentproperties,forexample,highstrength,highhardness,wear,corrosion,oxidationandshockresistanceetc.,andisakindofhightemperaturestructuralmaterialwithenormouspotentialitiesforfuturedevelopment.Buthighcostfor…


Bonding of Silicon Nitride Ceramic Composite with RE 2O 3 Al 2O 3 SiO 2 Glass Solders
Zhou Fei.Bonding of Silicon Nitride Ceramic Composite with RE 2O 3 Al 2O 3 SiO 2 Glass Solders[J].Journal of Rare Earths,1999(3).
Authors:Zhou Fei
Abstract:Liquid bonding of Si 3N 4 ceramic composite was carried out with RE 2O 3 Al 2O 3 SiO 2 glass solders. The effect of bonding conditions and interfacial reaction on the joint strength was studied. The joint strength under different bonding conditions was measured by four point bending tests. The interfacial microstructures were observed and analyzed by SEM, EPMA and XRD. It is shown that the liquid glass solders react with Si 3N 4 at interface, forming the Si 3N 4/Si 2N 2O/Y(La) sialon glass/Y(La) sialon glass gradient interface. With the increase of bonding temperature and holding time, the joint strength first increased reaching a peak, and then decreased. According to microanalyses, LaYO 3 precipitated from joint glass improves joint strength at room and high temperature.
Keywords:Rare earths  Si  3N  4 ceramic composite  Lanthana  Yttria  Bonding
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