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a number of casting alloys have very high lead contents however the pb content in wrought alloys is comparatively low
1 would you expect the fracture toughness of quenched and tempered aluminum bronze to be high or low would there be a
1 you wish to design the rung on a ladder the ladder should be light in weight so that it can be easily transported and
1 we wish to design a mounting device that will position and aim a laser for precision cutting of a composite material
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a part for an engine mount for a private aircraft must occupy a volume of 60 cm3 with a minimum thickness of 05 cm and
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1 what typical density levels are obtained in sintered ceramics2 what do the terms lsquolsquoapparent porosity and
1 how many grams of bao can be added to 1 kg of sio2 before the osi ratio exceeds 25 and glass-forming tendencies are
1 how is a glass-ceramic different from a glass and a ceramic2 what are the advantages of using glass-ceramics as
1 what are linear and branched polymers can thermoplastics be branched2 define a a thermoplasticb thermosetting
a polyethylene rope weighs 025 lb per foot if each chain contains 7000 repeat unitsa calculate the number of
1 what is the main reason why glass formation is easy in silicate systems2 can glasses be formed using metallic
silicon carbide sic has a specific gravity of 31 gcm3 a sintered sic part is produced occupying a volume of 500 cm3 and
1 explain why low-density polyethylene is good to make grocery bags however super high molecular weight polyethylene
1 what mechanisms of diffusion play the most important role in the solid-state sintering of ceramics2 explain the use
1 can ceramic materials show superplastic behavior or are they always brittle explain2 explain why the strength of
1 what are some of the typical characteristics of ceramic materials2 why is the tensile strength of ceramics much lower
1 what material is used to make the tiles that provide thermal protection in nasas space shuttle2 which ceramic
1 what are the primary types of atomic bonds in ceramics2 explain the meaning of following terms ceramics inorganic
1 an actuating lever in an electrical device must open and close almost instantly and carry a high current when closed
figure 16-22 on the next page shows the stress-strain curve for an elastomer from the curve calculate and plot the
spherical aluminum powder sap 0002 mm in diameter is treated to create a thin oxide layer and is then used to produce a