ENGR 100 Lecture Notes - Lecture 11: Sintering, Cochlear Implant, Biomaterial
Document Summary
Assembly joints: overall assembly that make up design: subassembly drawings, assembly drawings, standard components, specifications, detailed drawings. Specification of design product: a design or product specifications describe the key poimts or requirements for a final design not how to achieve it. Data sheets: provides a summary of a typical performance a component. Metallic bonding (crystalline electron pairs are fought over by atoms sea of electrons) Polymer bonding is unique are it is has (intermolecular and intramolecular bonding) forces (hydrogen bonding)- these bonds lead to real world mechanical attributes. Polymeric material form oxygen present (cross-linking occurs making them brittle changing drastically their behaviour) Rubber material allows for easy insertion above the brain through hole in skull. Formed back to its orginal state (85 degrees extra energy) Glass: is metastable that will eventually crystallise. Redesign material- electrical conducts: pass through current to put the resistance at a relatively appropriate temperature (85 degrees) Activate it with heat and it contracts.
