Entc 206 Study guides, Class notes & Summaries

ENTC 206 Test #1endurance limit - correct answer stress level that fatigue failure will not occur below hardness - correct answer measure of a material's resistance to penetration tensile test - correct answer standard testing method used to generate the stress-strain relationship creep - correct answer continued plastic deformation under a constant load and more prominently with elevated temperature; material may stretch & eventually fail at an applied stress BELOW its yield strength;...

ENTC 206 Lab Practical Question and answers already passed 2023/2024ASTM - correct answer American Society for Testing and Materials ISO - correct answer International Organization for Standardization What is a resistor made of? - correct answer Al2O3 + metal or metal oxide layer What is a knife/peeler made of? - correct answer Al2O3 or (SiC or Si3N4) What is aerogel? - correct answer good thermal insulator What is an ignitor? - correct answer made of Si3N4 or SiC high elec...

ENTC 206 Question and answers rated A+ 2023/2024Among the different types of glass, which one is the only crystalline glass? - correct answer glass ceramic Which of the following manufacturing methods can significantly improve the mechanical strength of a ceramic product? - correct answer sintering Diamond is the hardest material known to humans. It is an excellent abrasive for making grinding wheels for machining of various materials. However, the diamond grinding wheel can NOT be used fo...

ENTC 206Among the different types of glass, which one is the only crystalline glass? - correct answer glass ceramic Which of the following manufacturing methods can significantly improve the mechanical strength of a ceramic product? - correct answer sintering Diamond is the hardest material known to humans. It is an excellent abrasive for making grinding wheels for machining of various materials. However, the diamond grinding wheel can NOT be used for grinding ___ material - correct answer...

____ is a process to strengthen rubber by adding _____ to transform it into a thermosetting elastomer - correct answer -sulfur vulcanization; sulfur the major raw material for synthetic plastic is ____ - correct answer -ethylene the major raw material for synthetic rubber is ____ - correct answer -crude butadiene To further improve rubbers' strength and wear resistance, an additive called ____ is added to rubber to achieve that - correct answer -carbon black latex gloves have been u...

classification of materials - Answer metals, polymers, ceramics, composites Life-Cycle inventory - Answer inputs (raw materials, bulk materials, energy...); outputs (products, by-products, gas emissions...) environmental stressors - Answer resource and water consumption, energy consumption over life, emission of CO2, NOx, SOx, particulates, and toxic residues, acidification, ozone depletioin life-cycle assessment (LCA) - Answer provides a perspective on the environmental impact of a pro...

____ is a process to strengthen rubber by adding _____ to transform it into a thermosetting elastomer - correct answer -sulfur vulcanization; sulfur the major raw material for synthetic plastic is ____ - correct answer -ethylene the major raw material for synthetic rubber is ____ - correct answer -crude butadiene To further improve rubbers' strength and wear resistance, an additive called ____ is added to rubber to achieve that - correct answer -carbon black latex gloves have been u...

MEMS - Answer Micro-ElectroMechanical Systems [Microstructures] built on silicon, can sense 5 motion senses of acceleration, vibration, shock, tilt, and rotation Applications as gyroscopes or accelerometers (sometimes combined uses) Examples of Nanomaterials - Answer Natural: ATP Synthase, DNA, Silicon Atoms Man-made: Carbon nanotubes Size-Dependency Examples @ Nanoscale - Answer 1 - Lead has a lower melting temperature the smaller the particle radius 2 - Gold changes colors througho...