MATS 3011 Lecture Notes - Phase Diagram, Mpra Language, Polyvinyl Chloride
Document Summary
N-v isn"t a mixtureit"s niv2o6, it itself is a compound. All red circles = invariant points (eutectic/toid or peritectic/oid) Composition of solid changes above peritectic structure (doesn"t do that for eutectic) -b/c it"s made of anions and cations, so if shift, will have + on top of + and - on top of - -hard in ceramics due to alternative positive and negative charges. More complicated crystal structure than metals (related to point 1) Defined as a molecule that is a long chain of atoms. Range of properties (associated with their structure) example: polyethylene. # of repeating units (degree of polymerisation repeating unit. The small molecule from which polymer is synthesized is called monomer. Different properties depending on density & branching of long molecules. Low density polyethylene (ldpe): used in tubing, plastic bags, garbage bags, wash bottles, etc. High density polyethylene (hdpe): used in bottles for laundry detergent, traffic cones, trash cans, pipes (hard and durable)
