(中南大學(xué) 粉末冶金國(guó)家重點(diǎn)實(shí)驗(yàn)室，長(zhǎng)沙 410083)
摘 要: 采用溫壓−原位反應(yīng)法制備C/C-SiC復(fù)合材料，利用QDM150型摩擦試驗(yàn)機(jī)研究短炭纖維(SCF)長(zhǎng)度和纖維體積分?jǐn)?shù)對(duì)C/C-SiC制動(dòng)材料摩擦磨損性能的影響。結(jié)果表明：C/C-SiC制動(dòng)材料能夠保持較高且穩(wěn)定的摩擦因數(shù)；SCF的體積分?jǐn)?shù)將影響C/C-SiC制動(dòng)材料的摩擦磨損性能，纖維體積分?jǐn)?shù)為10％時(shí)，材料具有適中的摩擦因數(shù)和較低的磨損率；SCF長(zhǎng)度對(duì)C/C-SiC制動(dòng)材料的摩擦磨損性能有顯著影響，炭纖維長(zhǎng)度為12 mm時(shí)，材料具有最佳的摩擦磨損性能。
關(guān)鍵字: 短炭纖維；C/C-SiC復(fù)合材料；摩擦磨損
（State Key Laboratory of Powder Metallurgy, Central South University,Changsha 410083, China）
Abstract:C/C-SiC composites were manufactured by warm compacted−in suit reacted process. The influence of short carbon fiber length and content on the friction and wear behaviors of C/C-SiC composites was investigated using QDM−150 wear tester. The results show that C/C-SiC composites can keep high and stable friction coefficient. The friction and wear behaviors of C/C-SiC composites are affected by carbon fiber content. When the volume fraction of fiber is 10%, the material has moderate friction coefficient and lower wear rate. The length of carbon fibers significantly influences the friction and wear behaviors of C/C-SiC composites. When the length of carbon fiber is 12 mm, the material has the best friction and wear properties.
Key words: short carbon fiber; C/C-SiC composite; friction and wear
