通过将聚硅氮烷和聚乙烯吡咯烷酮在一定条件下混合,经过分子聚合及惰性气体保护下高温热处理,在SiCN陶瓷基体表面生长短的多壁碳纳米管.所制备的碳纳米管长度短,在～500 nm范围,直径在～30 nm,并且具有完整的管状结构.多壁纳米炭管形成机理是聚乙烯吡咯烷酮在溶液中自组装形成的高分子管状结构,再经高温炭化而成.
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