specimen

#

method of sample making

electric resistance at 298 К-, lgρ, λ∙m

temperature coefficient of electric resistance,

a_Τ∙10⁻², К⁻¹

conductivity activation energy, E, ℓV

A

hot-compression

6.4

2.3

1.08

B

nitro-alum thermal synthesis

8.4

2.3

1.08