微晶白云母碳熱還原氮化燒結(jié)Sialon基耐火材料的研究.pdf

1、成都理工大學(xué)碩士學(xué)位論文微晶白云母碳熱還原氮化燒結(jié)Sialon基耐火材料的研究姓名：張小輝申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：材料學(xué)指導(dǎo)教師：陳善華201106absnactStudy0nSinteringPrOcessOfSialonbasedRefraCtorieSbyCarbOthermalReductiOnandNitridation0fMicrocrystaUineMuscoviteIIl仃oductionoftheauthor：Zhan

2、gXiaohui，male，wasbominJ刪aⅨl986，whosetutorwasprofeSsorCh％ShallhuaHe胂duated舶mChengduUniVerS塒of1khnolog)，inmat喇a(chǎn)lssci即cemajor鋤dw繼g颶ntcdmeM嬲t盯DegreeinJune，20l1AbstractThenaturalal啪inl蛐silicatemineralsarcrichinrcsources，distr

3、ibuteingeneral，eaSymined，Choiced，processed，aIldCostsarcrclatiVely10w，soin廿lestudyofSialonsyIltllesis，t11eyhavebeeIloneofthehotspotSTllisp印erus酣thenaturalmicrocr)，stalmuscovite嬲rawmat耐alsint∞edSialonbaLsedre觸cto巧mat麗a1hlt

4、llispaperlargemmlberoflitcr柵eswerercfbr％cedtodesignthespecificeXpefimentscheme，Such弱rea甜ont鋤peranlre，he撕ngcurve，tller髓CtionoftlleIli仃09e11flow，tllemicrocrystallinemusc0Vitepaniclesize觚dsoonAndmenusedmicrocD，stalmuscovite

5、勰rawmaterial，∞r(nóng)bonblack雒r酣ucingage玎嗚Ilin’ogen嬲IlitrogeIlsource，wesinteredSialonb弱edre觚Ctorymaterial州mmeVa∞umhotpressingmmaceThemicrocrystalmuScoVite’sproportionw嬲73％，carbon’sw嬲27％，tllesinteringtempe陽(yáng)t1】rew嬲1350℃鋤d1550℃Ac

6、cordingt0tllechaIlgeofthcsintereds鋤ples’thickness(displacement)during也esint甜ngproceSsaIldtestingresultssuch鷸XRD，SEM，EDAX，flexurals訊mgtll，Vickershardness鋤ds0onOfs鋤叩le，weresearchednlephaSe仃觚sitioncharact甜sticsoft11ef0加edpr

7、oductsiIltllesinteringprocess，aIldbaSedontllis，analySisthereactionmechallismofmicrocD，stallinemusCOVitecarbotllennalandni砸dationreactionduringthesint甜ngprocessTheresultswereasf0110ws：(1)111esinteredphasecompositionsofthe

8、s柵plewereSi6A106N5、mullite、AlN、A1203at1350℃Themainreactionsoftheexperimentswere：旺quanzstartedtOchangeaTridymiteat870℃，鋤dproducedmullite；mullite，Si02occurredreductionnit^dationreactionf0柵edSi4106N5undcrthee仃ectoftheC；pano