(哈爾濱工業(yè)大學復合材料研究所， 哈爾濱 150001)
摘 要: 采用SHS/PHIP工藝制備了致密的TiC-Al2O3-Fe復合材料。研究了Fe含量對燃燒溫度、燃燒波速度、合成產(chǎn)物密實度及力學性能的影響。結(jié)果表明，燃燒波速度在一定Fe含量范圍內(nèi)出現(xiàn)一近似平臺；密實度隨Fe含量變化而變化，在Fe含量為10%時，產(chǎn)物的密實度最高，為99.4%；隨著Fe含量的增加產(chǎn)物的抗彎強度不斷提高，F(xiàn)e含量為10%和30%時，抗彎強度分別為740 MPa和970 M Pa。
關(guān)鍵字: 自蔓延高溫合成 準熱等靜壓 TiC-Al2O3-Fe 材料性能
（Center for Composites Materials, Harbin Institute of Technology, Harbin 150001, P. R. China）
Abstract:The influence of Fe content on combustion temperature, combustion velocity, density and mechanical properties of TiC-Al2O3-xFe composites fabricated by SHS/PHIP was studied. The results show that the combustion velocity has an approximate plateau, when the content of Fe is between 20%～30%; the densities of products vary with content of Fe and reach up to the highest( i.e. 99.4%), when the content of Fe is 10%; the transverse rupture is increased with Fe content, e.g. when Fe contents are 10% and 30% the transverse rupture are 740 MPa and 970 MPa, respectively.
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