Inclusion of Pitch-Based Graphite Fibers
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摘要: 用透射電子顯微鏡觀察各向同性瀝青基石墨纖維中的夾雜物,大多數夾雜物呈鞋形、橢圓形、圓形或紡錘形。所觀察到的夾雜物部具有明顯的層狀結構。而這種結構是由夾雜物內部的片狀石墨晶體平行堆疊形成的。這些片狀石墨在取向上都與纖維軸相垂直。在夾雜物內部還發現了垂直于纖維軸的裂紋。Abstract: Structure of inclusions in isotropic pitch-based graphite fibers have been investigated by using TEM. The longitudinal sections of most inclusions are shoe-shaped, ellipsoidal or circular. These inclusions have layer structure which consists of a number of flaky crystallites. Theses flaky crystallites are parallel to each other and perpendicular to the fiber axis. Fissures which are perpendicular to the fiber axis have been found inside the inclusion.
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Key words:
- inclusion /
- pitch /
- graphite fibers
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