The Ni–B electroless presents a good adherence on the MWCNTs due to the voids aren't present.
When the immersion time of the MWCNTs in the Ni–B bath increased, the thickness film increases.
The immersion time of 3 and 5 min protects the MWCNTs from high temperatures.
The Ni–B coating don't change the MWCNTs structure either forms any carbides.