Evolution of Carbon Fiber Microstructure During Carbonization and High-Temperature Graphitization Measured In Situ Using

  • PDF / 278,517 Bytes
  • 6 Pages / 432 x 648 pts Page_size
  • 7 Downloads / 185 Views

DOWNLOAD

REPORT


(YROXWLRQRI&DUERQ)LEHU0LFURVWUXFWXUH'XULQJ&DUERQL]DWLRQDQG+LJK7HPSHUDWXUH *UDSKLWL]DWLRQ0HDVXUHG,Q6LWX8VLQJ6\QFKURWURQ:LGH$QJOH;UD\'LIIUDFWLRQ 

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ƒ&WRJUHDWHU WKDQaƒ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a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