ENGR 100 Lecture Notes - Lecture 13: Pediatrics, Shape-Memory Alloy, Metallic Bonding

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27 Oct 2020
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Polymers: primary and secondary boding (most extendable and tough) Ceramics- covalent and ionic bonding (hardest, good wear) Functional material: emerging areas, 4d printing, active. Anmorphous like carbon polymer strong and resilient (sensetivity of secondary bonding- when polymer exposed to a particular environment it changes its properties drastically bioresorbable glass example: Ceramic glasses= amorphous biomaterial types: examples shopping bag branches of polyethylene (tough can stretch around load), crystalline fibre polyethyelene produces bulletproof material shape memory alloy example: Biocompatible regenerative medicine (body to replace material) load sharing for specific time- want body to take over prototyping: rationalise: safety and efficacy, cost is not the most important. Solid works +3d printing (time intensive)- test some functionality. Workshop prototype stages- test close to full functionality. Manufacturing mock up regulatory contraints (design and manufacturing) if reusable must be following strict guidelines. Clean processes ( iso class 7 classroom for implants), including monitoring. Design and validation of sterilisation (sal 10^6)- sterility assurance limit.

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