ISSN:
0098-1273
Keywords:
Physics
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Anodic growths on tungsten electrodes as a result of an applied electrostatic field with an atmosphere of benzonitrile (from about 5 × 10-4 to 10-5 torr) are studied as a function of many parameters. In order to observe the growth phenomena at high resolution in situ, the experiments were performed in an electron microscope. The growth rate of the dendrites is found to be irregular; an expression for dependence on the electric field is proposed to explain the evolution of needle length versus time t: \documentclass{article}\pagestyle{empty}\begin{document}$$ l(t) = l_M [1 - \exp ( - at)] $$\end{document} The mechanism of branching is also discussed.
Additional Material:
7 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pol.1977.180151110
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