Physical and Mechanical Properties Wood Technology

Evaluating the Viability of Nanocellulose as a Replacement for Traditional Metals

Researchers have observed that the specific strength (strength normalized by density) of defect-free nanocellulose can be manifold higher than that of aluminum or titanium alloys or constructional steels. They conclude that substituting traditional metals and alloys with lighter, ecologically friendly composites reinforced with nanocellulose is a promising step.

Which of the following would be most useful to know in evaluating this conclusion?