1、自蔓延高溫合成方法及其應用報告人：張浩 組 員：袁愷陽 劉磊峰 曾一明自蔓延高溫合成方法及其應用報告人：張浩主要內(nèi)容 SHS介紹1合成實例2應用前景3Company Logo主要內(nèi)容 SHS介紹1合成實例2應用前景3www.themeCompany LogoCompany Lo 自蔓延高溫合成 (self propagation high-temperature synthesis,簡稱SHS)，又稱為燃燒合成 (combustion synthesis)技術，是利用反應物之間高的化學反應熱的自加熱和自傳導作用來合成材料的一種技術，當反應物一旦被引燃，便會自動向尚未反應的區(qū)域傳播，直至反應完全

2、，能夠用來制備無機化合物高溫材料。Company Logo 自蔓延高溫合成 (self propagat直接合成法Ti 2B TiB2Ta C TaC2BN2 2BNCompany Logo直接合成法CompaMg熱、Al熱合成法 3MgCr2O3B2O3 2CrB3MgOGAl+Fe2O3+B2O3 FeB+FeAl+Al2O3GCompany LogoMg熱、Al熱合成法反應原理圖Company Logo反應原理圖CompaMorzhanov J . Ma t e r . C h e m . , 2 0 0 4 , 1 4 , 1 7 7 9Company LogoMorzhanov J

3、. Ma t e r . C h eSHS參數(shù)Company LogoSHS參數(shù)Compa混粉壓實裝入點火反應合成步驟Macedo. Journal of the European Ceramic Society 24 (2004) 25672574SHS合成B4Ti3O12Company Logo混粉壓實裝入點火反應合成步驟Macedo. Journal 合成設備Company Logo合成設備CompanSrFe12O19Maxim. J . Ma t e r. , 1998 , 8 , 573Company LogoSrFe12O19Maxim. J . Ma t e r. LaBO3M

4、axim. J . Ma t e r . C h e m . , 2 0 0 4 , 1 4 , 1 3 7 7Company LogoLaBO3Maxim. J . Ma t e r . C hC.L.Yeh. Journal of Alloys and Compounds 402 (2005) 118123Nb5Si3/NbCompany LogoC.L.Yeh. Journal of Alloys and成本低廉、時間短兩種制備方法的價格比在0.20.3之間！SHS所需時間為5min+2h固相反應所需時間為10h！Company Logo成本低廉、時間短Co結(jié)果SEM micrograp

5、hs of Bi4Ti3O12 powders: (a) produced by SHS; (b) produced by solid-state reaction.Company Logo結(jié)果SEM micrographs of Bi4Ti3O12SEM micrographs of Bi4Ti3O12 powders: (a) produced by SHS; (b) produced by solid-state reaction.Company LogoSEM micrographs of Bi4Ti3O12 p應用前景SHS直接制備粉體SHS結(jié)合強化密實化技術SHS冶金和焊接氣相傳質(zhì)

6、SHS涂層Company Logo應用前景Compan改進方向 缺點：反應機理有待研究Company Logo改進方向Compan參考文獻Chung et al, Advanced Materials 3 (2002) 129135 SHS: Concepts of Current Research and Development,A. G. Merzhanov, ed., Territoriya, Chernogolovka, 2003, p. 368(in Russian).A. G.Merzhanov and A. S. Rogachev, Russ. J. Phys. Chem., 2000,74(1), S20.M.Ode, Scripta Materialia 52 (2005) 10571062Levashov，Advanced Materials 4 (2003) 221228Suzuki A, Wu F, Murakami H, Imai H. Advanced Materials 5 (2004) 555.W.H.Chen, Journal o