تولید سرامیک نانولایه‌ای Ti3SiC2

نوع مقاله: مقاله پژوهشی

نویسندگان

پژوهشکده‌ی مواد و سوخت هسته‌ای، پژوهشگاه علوم و فنون هسته‌ای، سازمان انرژی اتمی

چکیده

ترکیبات سه­‌تایی نانولایه­‌ی Ti3SiC2، یک گروه جدید از مواد هستند که ویژگی­‌های فلزها و سرامیک‌­ها را نشان می‌­دهند. Ti3SiC2 شبیه فلزها، هدایت حرارتی و الکتریکی بالا، مقاومت بالا در برابر شوک حرارتی، سختی پایین و ماشین­‌پذیری خوبی را نشان می‌­دهد. هم­چنین Ti3SiC2 مشابه یک سرامیک مدول یانگ بالا، استحکام در دمای بالا و مقاومت در برابر اُکسایش خوبی دارند. در این مقاله، قطعات Ti3SiC2 از طریق مذاب خورانی مایع سیلیکون به درون پیش‌­سازه‌­هایی از پودر TiC سنتز می­‌شود. قرص سیلیکون به شکل منبع فلز مذاب، بالای نمونه­‌ها قرار داده می‌­شود. ترکیب اولیه را می‌­توان با فرمول 3TiC/1.3Si نشان داد. تشکیل فاز و ریزساختار با XRD و SEM مجهز به آنالیز عنصری EDS بررسی شد. نتایج نشان داد که پیش‌­سازه­‌ی TiC، به منظور سنتز مکس فاز با Si وارد واکنش می­شود و در کنار مکس فاز ناخالصی SiC، در سطح مقطع نمونه­‌ها ظاهر می‌­شود. هم­چنین مشخص شد که ترکیب نمونه‌­ها به زمان مذاب خورانی به شدت وابسته است و با افزایش مدت زمان، Ti3SiC2 به ترکیب TiC تجزیه می‌­شود.

کلیدواژه‌ها


عنوان مقاله [English]

Production of Ti3SiC2 Nanolayered Ceramic

نویسندگان [English]

  • H Foratirad
  • M Ghanadi Maragheh
  • H. R Baharvandi
چکیده [English]

The nanolayered ternary compound Ti3SiC2 is a representative of those materials that exhibit the characteristics of both metals and ceramics. Similar to metals, Ti3SiC2 shows high electrical and thermal conductivity, high thermal shock resistance, ductility and good machinability. Further, similar to a ceramic, Ti3SiC2 has a high Young’s modulus, as well as, high temperature strength and oxidation resistance. In this paper, T3SiC2 bulks have been synthesized by infiltrating Si liquid into a porous preform composed of solid TiC powders. Silicon pellets were placed on the top of the precursor pellets as the liquid source. The starting compositions can be represented by the formula 3TiC/1.3Si. The phase formation and microstructure were investigated by the X-ray diffraction (XRD) and scanning electron microscopy (SEM) equipped with an energydispersive spectroscopy (EDS) system. The results demonstrated that the TiC preform could react with Si in order to MAX phase synthesis and SiC impurities appeared in the cross section of the samples. It is found that the compositions of the samples strongly depended on the time of infiltration. Moreover, an increase in the time, decomposed Ti3SiC2 into TiC compound.

کلیدواژه‌ها [English]

  • Titanium Carbide
  • Ti3SiC2 MAX Phase
  • Gelcasting
  • Infiltration

[1] E.J. Lahoda, F. Franceschini, Advanced Fuels for Future Light Water Reactors. Pittsburgh, PA: Westinghouse Electric Company LLC (2011).

 

[2] T.D. Ippolito, Effects of Variation of Uranium Enrichment on Nuclear Submarine Reactor Design, MIT (1987) 52-58.

 

[3] P. Alto, PWR Cores with Silicon Carbide Cladding, CA, EPRI, 1022908 (export controlled document) (2011).

 

[4] B. Shannon, Advanced LWR Nuclear Fuel Cladding System Development Technical Program Plan. Light Water Reactor Sustainability Program, U.S. Department of Energy. Idaho Falls, ID: Idaho National Laboratory, External Report. INL/MIS-12-25696 (2012).

 

5. NRC. 10 CFR 50.46, Acceptance Criteria for Emergency Core Cooling Systems for Light Water. s.l.: NRC (1995).

 

[6] A. Melissa, Strategy for Development of Advanced Nuclear Fuels. GE Hitachi Nuclear Energy, Atlanta, NEDO-33691 (2011).

 

[7] T. Melissa, Written correspondence on Zircaloy properties, Idaho Falls (2012).

 

[8] S. Sezar, U.S. Code of Federal Regulations Energy, U.S. Government Printing Office, Washington, DC (1997).

 

[9] F. Nagase, Experiments on High Burnup Fuel Behavior under LOCA Conditions at JAERI, Proc. ANS Topical Meeting on LWR fuel Performance, Park City of USA, (2000).

 

[10] A. Sun, GE Hitachi Nuclear Energy, Strategy for Development of Advanced Nuclear Fuels, NEDO-33691, DRF 000-0137-1859 (2011).

 

[11] C. Miller, Recommendations for Enhancing Reactor Safety in the 21st Century, The Near-Term Task Force Review of Insights from the Fukushima Daiichi Accident, U.S. Nuclear Regulatory Commission (2011).

 

[12] R. Montgomery, Industry Advisory Committee to Idaho National Laboratory Advanced Light Water Reactor Fuel Development Plan, Status Report and Concept Screening Results (2011).

 

[13] A. Murugaials, Tape Casting, Pressureless Sintering, and Grain Growth in Ti3SiC2 Compacts, J. Am. Ceram. Soc. 87 (2004) 550-556.

 

[14] L. Jaworska, Preparation of materials based on Ti-Si-C system using high temperature- highpressure method, A chievement in mechanical and material engineering conference, Poland (2007).

 

[15] M. Lou, Synthesis and mechanical properties of in-situ hot-pressed Ti3SiC2 polycrystals, Ceram. Int. 28 (2002) 227–230.

 

[16] Y.Z. Zou, Synthesis reactions for Ti3SiC2 through pulse discharge sintering TiH2/Si/TiC powder mixture, Mat. Res. Bull. 43 (2008) 968-975.

 

[17] Z.F. Zhang, Fabrication and mechanical properties if ternary compound Ti3SiC2: Application of pulse discharge sintering technique, Adv. Eng. Mat. 2 (2002) 864-868.

 

[18] S. Arunajatesan, A.H. Carim, Synthesis of Titanium Silicon Carbide, Am. Ceram. Soc. 3(78) (1995) 667-672.

 

[19] D. Shan, Synthesis of Ti3SiC2 bulks by infiltration method, Alloy. Compound. 509 (2011) 3602–3605.

 

[20] H.Z. Hashimoto, Fabrication on fine grain titanium silicon carbide by using fine titanium hydride powders, Alloy. Compound. 484 (2009) 483-488.

 

[21] S. Konoplyuk, Synthesis of TiSiC/TiC composites from TiH2/SiC/TiC powders,  Mater. Lett. 59(18) (2005) 2342-2347.

 

[22] H. Foratirad, H.R. Baharvandi, M.G. Maragheh, Effects of dispersants on dispersibility of titanium carbide aqueous suspension, Refract. Metal. Hard Mat. 56 (2016) 96–103.

[23] G. Wypych, Handbook of Polymers, ChemTec Publishing, ISBN: 978-1-895198-47-8 (2012).

 

[24] ASTM C1161, Standard Test Method for Flexural Strength of Advanced Ceramics at Ambient Temperature, ASTM International organization (1995).

 

[25] ASTM C373, Standard Test Methods for Determination of Water Absorption and Associated Properties by Vacuum Method for Pressed Ceramic Tiles and Glass Tiles and Boil Method for Extruded Ceramic Tiles and Non-tile Fired Ceramic White ware Products, ASTM International organization (1995).

 

[26] Z.F. Zhang, Z.M. Sn, H. Hashimoto, Rapid Synthesis of Ternary Carbide Ti3SiC2 through Pulse-Discharge Sintering Technique from Ti/Si/TiC Powders, J. Am. Ceram. Soc. 23 (1998) 131–138.