L 400 L (NL. MgIO 2000 NiO20406 s0 Meo Mole percent Mgo Design of a Refractory Brick Design a NiO-MgO refractory material that can be melted and cast at 2600'C but will not melt when placed into service at 2300C
Design of a Composite material One method to improve the fracture toughness of a ceramic material is to reinforce the ceramic matrix with ceramic fibers, a materials designer has suggested that Al,2O3 could be reinforced with 25%/ cr,o fibers which would interfere with the propagation of any cracks in the aluminia. The resulting composite is expected to operate under load at 2000.C for several months, Criticize the appropriateness of this design
One method to improve the fracture toughness of a ceramic material is to reinforce the ceramic matrix with ceramic fibers. A materials designer has suggested that Al2O3 could be reinforced with 25% Cr2O3 fibers, which would interfere with the propagation of any cracks in the aluminia. The resulting composite is expected to operate under load at 2000℃ for several months. Criticize the appropriateness of this design. Design of a Composite Material
1.500 1.400 L 1300 a+I 1.200 1.100 1.0 80.000 Tensile strengt 60.000 60 5=45 540.000 fe Elongation 20.000 Yield strength 0 C 80 Weight percent nickel
Design of a Melting Procedure for a Casting You need to produce a Cu-Ni alloy having a minimum yield strength of 20000psi, a minimum tensile strength of 60000psi and a minimum elongation of 20%o You have in your inventory a Cu-20%Ni alloy and lots of pure nickel. Design a method for producing 10kg castings having the required properties
You need to produce a Cu-Ni alloy having a minimum yield strength of 20000psi, a minimum tensile strength of 60000psi, and a minimum elongation of 20%. You have in your inventory a Cu-20%Ni alloy and lots of pure nickel. Design a method for producing 10kg castings having the required properties. Design of a Melting Procedure for a Casting
Cu-90oNi or cu-%o to 60%o Ni (10ko/35%Ni 100% 3.5 kg Ni required 20% 100% (x kg Cu-20% Ni) 100%)+(10xkgM10%3.kgNp 02x+10-x=3.5 6.5=08x x=8. 125 kg Cu-20% Ni 加热到1250°C
Cu-90%Ni or Cu-33% to 60% Ni 加热到1250℃