: PEEK is famously tough, but its "amorphous" (non-crystalline) state is tricky to model. This paper provides a rare, deep look at the atomic level of why it's so resilient.

If you are looking for a foundational classic rather than a new technical report, many on the site frequently reference:

by Walter Benjamin: A critical read for anyone interested in the philosophical side of "mechanical" systems and how technology changes the value of what we create.