• 제목/요약/키워드: National physical laboratory

검색결과 648건 처리시간 0.041초

Effect of Pr Doping in La-Sn-Mn-O

  • Kumar, Neeraj;Tripathi, Rahul;Dogra, Anjana;Awana, V.P.S.;Kishan, H.
    • 한국자기학회:학술대회 개요집
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    • 한국자기학회 2008년도 Asian Magnetics Conference
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    • pp.156.2-156.2
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    • 2008

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Synthesis of Silicon Carbide Nanowhiskers from Coconut Fibres and Sol-Gel Derived Silica

  • Raman, V.;Bhatia, G.;Mishra, A.;Saha, M.;Sengupta, P.R.;Srivastava, A.K.
    • Carbon letters
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    • 제7권3호
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    • pp.166-170
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    • 2006

  • Silicon carbide whiskers ($SiC_w$) having the diameter in the range of 20-80 nm were synthesised from coconut fibres through sol-gel process. The coconut fibres were impregnated with tetraethoxysilane and methyltriethoxysilane derived sol and pyrolyzed at $1400^{\circ}C$ in argon. X-ray of the pyrolyzed samples showed the formation of ${\beta}$-SiC.

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