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鈦粉在聚硅氮烷裂解制備陶瓷材料中的應(yīng)用
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國(guó)防預(yù)研項(xiàng)目（N6BQ0001）


Applications of Ti Powder in Preparation of Ceramics by Polysilazane Pyrolysis
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    摘要:

    采用IR、TG、XRD等手段研究分析鈦粉作為活性填料在聚硅氮烷裂解制備陶瓷材料中的應(yīng)用。實(shí)驗(yàn)表明：鈦粉可以有效改善先驅(qū)體的陶瓷產(chǎn)率，本實(shí)驗(yàn)中純PSN-1先驅(qū)體在經(jīng)1300 ℃裂解陶瓷產(chǎn)率僅為37.3%，通過(guò)加入質(zhì)量比3/10（Ti/PSN-1）的鈦粉，經(jīng)1300 ℃裂解陶瓷產(chǎn)率為78.7%，提高了約40%；經(jīng)紅外光譜分析表明，通過(guò)向先驅(qū)體中加入Ti粉可以加速有機(jī)先驅(qū)體向無(wú)機(jī)陶瓷轉(zhuǎn)化的速度；經(jīng)X衍射分析表明，Ti粉作為活性填料能與先驅(qū)體裂解揮發(fā)份及保護(hù)氣氛發(fā)生反應(yīng)，生成TiC、TiN等新的物相，有利于提高陶瓷產(chǎn)率。

    Abstract:

    The application of Ti powder as active filler in the ceramic preparation by polysilazane (PSN-1) precursor pyrolysis was researched by means of IR, TG and XRD. Results show that Ti powder can effectively improve the ceramic yield of the precursor. In the experiment, the ceramic yield of the pure PSN-1 precursor pyrolyzed at 1300 oC was only 37.3%; while after adding Ti powder (Ti/PSN-1=3/10, mass fraction), the yield after 1300 oC pyrolysis was 78.7%, increasing by 40%. IR spectra reveal Ti powder addition to the precursor can accelerate the transformation from organic precursor to inorganic ceramic. XRD analysis show Ti powder as an active filler in the precursor can react with the cracker-volatile and the protective atmosphere, generating TiC, TiN and other new phases, which favors the increase of the ceramic yield.

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陳少杰,張教強(qiáng),蘇力宏,張秋禹.鈦粉在聚硅氮烷裂解制備陶瓷材料中的應(yīng)用[J].稀有金屬材料與工程,2010,39(7):1244~1247.[Chen Shaojie, Zhang Jiaoqiang, Su Lihong, Zhang Qiuyu. Applications of Ti Powder in Preparation of Ceramics by Polysilazane Pyrolysis[J]. Rare Metal Materials and Engineering,2010,39(7):1244~1247.]
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  • 收稿日期:2009-08-15
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