The Effect of SiC Coating on the Joint of C/C and LAS

摘要：

　　The SiC coating on C/C composites was prepared by CVD and pack-cementation method in this paper,then SiC coated C/C composites was jointed with LAS glass ceramic at 1423K for 30min and the pressure of 15 MPa.The structure and morphology of the SiC coating and as-received joints were analyzed by SEM and XRD; shear strength of joint was examined through the Instron universal testing tensile machine.The results show that the thickness of SiC coating prepared by CVD is about 30μm,while the thickness of SiC layer by pack-cementation is nearly 100μm,and the layer is easier to connect with LAS glass ceramic owing to the rough surface and wedge-shaped structure on the SiC coating; the shear strength of joint between SiC coating coated C/C and LAS by pack-cementation is greater than the joint of C/C-LAS with SiC coating prepared by CVD.

关键词： C/C composites SiC coating joint

作者: Huanxia Zhu Kezhi Li Jinhua Lu Hejun Li

作者单位: Carbon/Carbon composites Research Center,Northwesten Polytechnical University,Xian,710072,China

会议类型: 国际会议

会议名称: 2012 Workshop on Inorganic Thin Films and Coatings (2012年无机薄膜与涂层学术研讨会)

会议地点: 桂林

会议语种:英文

页码: 24-27

在线出版日期: 2012-07-16（万方平台首次上网日期，不代表论文的发表时间）