Increase in/of

Can anyone help me with the list underneath?

? Increase in degree of anisotropy
? Reduction in electrical resistance
? Increase in thermal conductivity
? Reduction in coefficient of thermal expansion
? Increase in density
? Increase in resistance to oxidation
? Increase in chemical stability
? Increase in cost
? Reduction in elongation at break
? Reduction in tensile strength
? Reduction in compression strength

I'm guessing some of these need to be corrected with ''increase/reduction of''