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High-Temperature Properties of Newly Developed Advanced SiC Fibers

机译：新开发的高级SiC纤维的高温特性

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摘要

As a result of R & D efforts for silicon carbide (SiC) fibers, near-stoichiometric and highly crystalline SiC fiber (Hi-Nicalon type S) has been developed. In this research, to estimate the potential capability of Hi-Nicalon type S for reinforcement of ceramic matrix composites, fiber tensile tests at high temperature and fiber oxidation tests at 1373 K were carried out. Hi-Nicalon fibers were also tested to compare with Hi-Nicalon type S. From the results of research for effects of gauge length on fiber strength, the strength-gauge length relationship of Hi-Nicalon type S was found to follow the weakest-link rule. The results of tensile tests at high temperature indicated that the strength of Hi-Nicalon type S slightly increased with increasing test temperature. Finally, from the SEM observation results of oxidized fibers, the oxidation behavior of Hi-Nicalon type S was found to fit the Deal/Grove linear-parabolic model.
机译：作为碳化硅（SiC）纤维研发工作的结果，已开发出接近化学计量和高度结晶的SiC纤维（Hi-Nicalon S型）。在这项研究中，为了评估Hi-Nicalon S型增强陶瓷基复合材料的潜在能力，进行了高温下的纤维拉伸试验和1373 K下的纤维氧化试验。还测试了Hi-Nicalon纤维与Hi-Nicalon类型S的比较。根据对标距对纤维强度的影响的研究结果，发现Hi-Nicalon S型的强度-规格长度关系遵循最弱环节规则。高温拉伸试验的结果表明，随着试验温度的升高，Hi-Nicalon S型的强度略有提高。最后，根据氧化纤维的SEM观察结果，发现Hi-Nicalon S型的氧化行为符合Deal / Grove线性抛物线模型。

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  • 来源
  • 会议地点 Osaka(JP);Osaka(JP);Osaka(JP);Osaka(JP)
  • 作者

    H. Serizawa; C.A. Lewinsohn; G.E. Youngblood; R.H. Jones; D.E. Johnston; A. Kohyama;

  • 作者单位

    Joining and Welding Research Institute, Osaka University, 11-1 Mihogaoka, Ibaraki, Osaka 567, Japan;

    Pacific Northwest National Laboratory, MSIN:P8-15, P.O. Box 999, Richland, WA 99352, USA;

    Pacific Northwest National Laboratory, MSIN:P8-15, P.O. Box 999, Richland, WA 99352, USA;

    Pacific Northwest National Laboratory, MSIN:P8-15, P.O. Box 999, Richland, WA 99352, USA;

    Associated Western Universities/University of Washington, Seattle, WA, USA;

    Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611, Japan;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 TQ174.58;
  • 关键词

    SiC fibers; ceramics; high temperature; oxidation; composites;

    机译：SiC纤维陶瓷;高温;氧化复合材料;

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