Home › Forums › setting the stage › solids as quantum systems › Def. of a Solid This topic has 0 replies, 1 voice, and was last updated 4 months, 1 week ago by colby_dennis. Viewing 1 post (of 1 total) Author Posts October 30, 2024 at 11:50 pm #11786 colby_dennisParticipant I would define a solid as a material that has a rigid internal structure with some type of periodicity. I know metals are crystalline in nature but I’m not sure how to include types of ceramics into that definition. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In