以一种聚硅氧烷类有机硅树脂YR3370(GE Toshiba Silicones)为连接剂,连接了反应烧结SiC(RBSiC)陶瓷和高强石墨.连接件在1100～1400 ℃的99.99%N2气流中进行热处理.用X射线衍射仪和红外光谱仪分析有机硅树脂YR3370裂解产物的结构和变化,用扫描电镜观察连接件的显微结构,用材料试验机测定连接件的三点弯曲强度.连接温度为1300℃时,连接件的三点弯曲强度达最大值18.3 MPa,为石墨母材强度的45.8%.连接层是有机硅树脂YR3370裂解生成的无定形SixOyCz陶瓷,其结构连续均匀致密,厚度在2～5 μm之间.连接机理是无定形SixOyCz陶瓷对RBSiC和石墨基体的无机粘接作用.
参考文献
| [1] | Krenkel W .[J].The International Journal of Applied Ceramic Technology,2004,1(02):188. |
| [2] | Lewinsohn CA.;Shibayama T.;Hinoki T.;Ando M.;Katoh Y. Kohyama A.;Singh M. .Joining of silicon carbide composites for fusion energy applications[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2000(Pt.B):1258-1261. |
| [3] | Harris PJF .New perspectives on the structure of graphitic carbons[J].Critical Reviews in Solid State and Materials Sciences,2005(4):235-253. |
| [4] | Kim Y W;Kim S H;Xu X et al.[J].Journal of Materials Science Letters,2002,21:1667. |
| [5] | Colombo P.;Pippel E.;Woltersdorf J.;Sglavo V. .Joining of reaction-bonded silicon carbide using a preceramic polymer[J].Journal of Materials Science,1998(9):2405-2412. |
| [6] | Lee Y B;Park H B;Shim J K et al.[J].Journal of Applied Polymer Science,1999,74:965. |
| [7] | Buczko R.;Pantelides ST.;Pennycook SJ. .Bonding arrangements at the Si-SiO2 and SiC-SiO2 interfaces and a possible origin of their contrasting properties[J].Physical review letters,2000(5):943-946. |
| [8] | Wei Q.;Pippel E.;Woltersdorf J.;Scheffler M.;Greil P. .Interfacial SiC formation in polysiloxane-derived Si-O-C ceramics[J].Materials Chemistry and Physics,2002(2/3):281-289. |
| [9] | 原效坤,李树杰,张听.用有机硅树脂YR3370连接RBSiC陶瓷[J].航空学报,2007(02):451-455. |
| [10] | Pippel E;Woltersdorf J;Colombo P et al.[J].Journal of the European Ceramic Society,1997,17:1259. |
| [11] | Harshe R R .Synthesis and Processing of Amorphous Si(Al)OC Bulk Ceramics:High Temperature Properties and Applications[D].Darmstadt:Darmstadt University of Technology,2004. |
| [12] | Smith D L.Thin Film Deposition:Principles and Practice[M].New York:McGraw-Hill Press,1995 |
| [13] | Appiah KA.;Lackey WJ.;Wang ZL. .Characterization of interfaces in C fiber-reinforced laminated C-SiC matrix composites[J].Carbon: An International Journal Sponsored by the American Carbon Society,2000(6):831-838. |
| [14] | Ekoue A .Caracterisation Electriques et Physico-Chimiques Des oxydes sur Carbure de Silicium[D].Lyon:L'Institut National des Sciences Appliquees de Lyon,2002. |
| [15] | Dashiell MW.;Hits D.;Kolodzey J.;Watson G.;Kulik LV. .Carbon incorporation in Si1-yCy alloys grown by molecular beam epitaxy using a single silicon-graphite source[J].Applied physics letters,1998(7):833-835. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%