Microstructure of SiC Whiskers with Different Cross-sections Perpendicular to the Whiskers Axis
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG1992年第1期
论文作者：宁小光 吕毓雄 胡魁毅 叶恒强
文章页码：1 - 8
摘 要：<正> Microstructure of β-SiC whiskers with differ-ent cross-sections perpendicular to their growingdirection was studied in detail by transmission elec-tron microscopy （TEM）.It was indicated that therewere three types of cross-sections:round,hexagonal and trigonal.The whiskers with roundand hexagonal cross-sections had a high density ofplanar faults lying on the （111） close packed planesperpendicular to the whisker axis.There existed afew stacking faults on the other {111} planes insome hexagonal whiskers.The whiskers withbicrystals were also found in hexagonal whiskers.The microstructure of trigonal SiC whiskers wasbasically perfect but there were a few intrinsic stack-ing faults on the （11） planes （mostly） and （111）planes.The characters of electron diffraction pat-terns of β-SiC whiskers with different cross-sec-tions were reasonably analyzed using a reciprocalspace model with continuous diffraction streaksalong the [111] reciprocal direction.
宁小光，吕毓雄，胡魁毅，叶恒强
摘 要：<正> Microstructure of β-SiC whiskers with differ-ent cross-sections perpendicular to their growingdirection was studied in detail by transmission elec-tron microscopy （TEM）.It was indicated that therewere three types of cross-sections:round,hexagonal and trigonal.The whiskers with roundand hexagonal cross-sections had a high density ofplanar faults lying on the （111） close packed planesperpendicular to the whisker axis.There existed afew stacking faults on the other {111} planes insome hexagonal whiskers.The whiskers withbicrystals were also found in hexagonal whiskers.The microstructure of trigonal SiC whiskers wasbasically perfect but there were a few intrinsic stack-ing faults on the （11） planes （mostly） and （111）planes.The characters of electron diffraction pat-terns of β-SiC whiskers with different cross-sec-tions were reasonably analyzed using a reciprocalspace model with continuous diffraction streaksalong the [111] reciprocal direction.
关键词：
