莫來石短纖維增強(qiáng)鋁基復(fù)合材料的性能和界面研究.pdf

1、東南大學(xué)碩士學(xué)位論文莫來石短纖維增強(qiáng)鋁基復(fù)合材料的性能和界面研究姓名：陳彩霞申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：材料學(xué)指導(dǎo)教師：吳申慶20070119東南大學(xué)碩士學(xué)位論文ABSTRACTinthis卿Ild吼thespecimensoftheMulliteshortfiberandtheAluminashortfiberreinforcedthealmninummatrixcOmlxBitcssveltefabriented時(shí)squeezecast

2、ingtheperfom∞011thetensilestmngth，thehardnessandtIIcthermal“pallsi鋤andthethermalcyclingbehavioroftheMII沁shortfiberreinforcedM124Fcomposites，theAltnninashortfiberreinforcedM124FcompositesandtheM124FAhninmnalloylla№been詛ve

3、sIigaledWiththehelpoftheo#calmicroscope，the∞鋤fIingelectramicroscopeandthetranmissionelectronmicroscopetheinterracialslruetureaxldthefracturemWpIl0109yoftlaetensilesl㈣imenwe∞observedTheresultsshow1II缸：Withtheeeramicfibern

4、碡tensilest瑚gthoftlaeeomi’ositesisiIl目哼酬and缸coeffieieraofthemudexpansion(CTE)isreduced腳alsotheresidualstrainandthelengthofllaestrainhyteresisloopof恤ttlemlaleycleprocessisalseducedThereinforcingeffectoftheMull缸shortfiberan

5、dtheAluminashortfiberiscompal“dlivebesidesfileMullite$1110TtfiberreinforeⅨlM124Fa=pos舾sllowsgreattet∞ile蚰magtllest蹴inllyintheelevatedlemperanlreandtheCTEofthcMullitedMl24FcompositesisalittleI聊血啦fllatoftheAimnina—M124Fcom

6、positeso山awjse’the婦把fl刪stmc缸他ofissimilarthereisnoreactioninthein蛐e，itis飄l疆05edthatthereistoom撕可silieoocollaelltintheM124Fmatrixwhichleadstother1％lctiOlllisrestrainedBased∞thea甲口證哪t甜resultsthepcrrormm∞oftheMullitedMl24Fco

7、mposites妣∞m陽啊慨tothoseof廿e^lmimi／M]24Fcompositesandalsothepriceof恤MuUiteshortfilm“iscl目岬tlI柚thatoftheAluminasholrtfibersoitisfeasibletosubstitutetheMulliteshortfiberfor恤eAluminashortfibcfastlacrcinforcememofthcAluminummat