While ethylenediamine was used as carbon source and the self-made nickel fiber was used as the catalyst,a series of nickel/carbon fiber composite materials with different proportion could be obtained by a facile in situ method.Moreover,the microwave absorbing properties of the composites were investigated.Considering that both the nickel fiber and carbon fiber are electromagnetic wave dissipation materials,the obtained fiber composites could be used as a wave absorbing material directly without any further ...