Some important applications properties I didn't see listed in the brief UofM blurb: Curie temperature: - at what temperature do these magnets start to lose the

Some important applications properties I didn't see listed in the brief UofM blurb: Curie temperature: - at what temperature do these magnets start to lose their magnetic energy? Coercivity: - how easily are these magnets demagnetized by external energy input (vibration, inductive kickback from motor windings, transformers, etc.)?