Growth and Properties of Carbon Microcoils and Nanocoils

Crystals

Muneaki Hikita¹  Robyn L. Bradford²  Khalid Lafdi¹ 

[1] University of Dayton, 300 College Park, Dayton, OH 45469, USA; E-Mail

关键词: carbon microcoils;    carbon nanocoils;    CMCs;    CNCs;    chemical vapor deposition;   

DOI  :  10.3390/cryst4040466

来源: mdpi

【 摘 要 】

Various types of coiled carbon filaments have been synthesized using chemical vapor deposition and other methods. These carbon filaments exhibit unique electrical and mechanical properties due to their versatile shapes and structures. To form coiled shapes, different types of catalyst compositions and reactive gases have been explored. Generally, coiled carbon filaments are classified by coil diameter and shape (e.g., microcoil and nanocoil). In this review, coiled carbon filaments are classified into three growth mechanism categories: (1) bidirectional double helical growth; (2) bidirectional twisted growth; and (3) tip single helical or twisted growth. Next, their synthesis methods and hypothetical growth mechanisms are discussed. Then, their electrical and mechanical properties are listed. Finally, potential applications and uses of coiled carbon filament are mentioned.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.