or a powder binding process that mixes a 1:2 volume ratio mixture of semi-crystalline polyethylene powder with a density of 0.900 g/cm³ and rystalline polyethylene powder, what is the percent crystallinity of the manufactured parts? (The density of polyethylene in its amorphous and rystalline states is 0.870 g/cm³ and 0.998 g/cm3 respectively) This question has only one correct answer) O a. % Crystallinity = 55.45% O b. % Crystallinity = 57.25% O C. % Crystallinity = 76.99% O d. % Crystallinity = 82.30% O e.

or a powder binding process that mixes a 1:2 volume ratio mixture of semi-crystalline polyethylene powder with a density of 0.900 g/cm³ and rystalline polyethylene powder, what is the percent crystallinity of the manufactured parts? (The density of polyethylene in its amorphous and rystalline states is 0.870 g/cm³ and 0.998 g/cm3 respectively) This question has only one correct answer) O a. % Crystallinity = 55.45% O b. % Crystallinity = 57.25% O C. % Crystallinity = 76.99% O d. % Crystallinity = 82.30% O e.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

3
A glass fiber/polymer compound is injection molded in a steel tool. To simplify the analysis, assume treat is as it is only polymer and model the sprue, runner and part as a cylinder of diameter 10 mm and length 150 mm. Determine the injection pressure to make the part in 2 seconds Data given: Polymer density =980 kg/m^3, polymer viscosity (μ)=10^3 N-s/m^3, barrel diameter (D) = 28mm, flight width (w) = 21 mm, flight height (H) = 4 mm, helix angle (q) = 15 degrees, length of screw (L) = F25mCamScanner
Use brief sentences, sketches or calculations to answer the following questions:
Calculate the Degree of Crystallinity of the composite having mineral particles of 15(%) by weighthas enthalpy of melting of 31.3 (J/g) and enthalpy of crystallization of 24.4 (J/g). if, Δhm100 = 90(J/g). The Specific gravity of the matrix and particles is 1.24 and 2.2 respectively.
If your aim is to obtain enhanced densification rates and accelerated grain growth during sintering, which sintering method would you prefer and why?What are the stages of this sintering method?
Give your hypothesis on the creation of the spinel structure and the density of the material as the sintering temperatures are increased.
The 3D printing approach shown below is fused deposition modelling (FDM), where feedstock polymer is fed into the heated printer nozzle and deposited onto the platform to form the final object in the desired geometry. Which of the polymers below are suitable for this process and what nozzle temperature should be used for that material? Z AXIS X AXIS HOME Y AXIS D LEGEND: A : Extruder B: Nozzle C: Printed part D: Hot plate E: Filament Select one or more: a. Polyvinyl chloride - 110°C (for PVC: Tg = 120°C, Tmelt = 240°C, HDT = 92 °C) b. ABS-125°C (for ABS: Tg = 140°C, Tmelt = 200°C, HDT = 100 °C) c. Polyvinyl chloride - 250°C (for PVC: Tg = 120°C, Tmelt = 240°C, HDT = 92 °C) d. ABS-215°C (for ABS: Tg = 140°C, Tmelt = 200°C, HDT = 100 °C)
Powder Metal Question: You are given alumina powder that comes in large bags and shipped a long distance a. why is it important to sample the powder in the bags ? b. how do you sample the material? c. what might you expect to see in your sampling? d. how do you deal with the issue if present ?
2
Hide blocks Iron (II) oxide (FeO) is a ceramic that has the same crystal structure as NaCl. Given: R(Fe2)=0.087 nm and R(0²)-0.132 Calculate the lonic Packing Factor (IPF) of FeO? Select one: O a. 0.12 Ob.0.41 Oc. 0.21 O d. 0.74 Oe. 0.14 O£.0.47 O g. 0.59 O h.0.51 10:14 PM 15-Apr-2021
The primary reason for introducing ceramic components in automotive engine designs is the possibility of higher operating temperatures and, therefore, improved efficiencies. A by-product of this substitution, however, is mass reduction. For the case of 2 kg of cast iron (density = 7.15 Mg/m3) being replaced by an equivalent volume of PSZ (Partially stabilized zirconia, density = 5.50 Mg/m3), calculate the mass reduction.
Borosilicate glass bottles are processed into bottles using press and blow method shown in Figure 6(a). By referring to Figure 6(b), i. State the suitable temperature range for making glass bottles and justify the answer. ii. Discuss the process to relieve thermal stresses the glass bottles using Figure 6(b). ii. Briefly discuss the consequence if the process in (ii) is not performed on the glass bottles. iv. State THREE (3) reasons why glass would be the best material for the glass bottles? Temperature ("F) 400 800 1200 1600 2000 2400 2800 3200 Borosilicate glass 96% silica Fused gass 104 silica 1014 Strain point Annealing point Softening point 10 Working range 10 10 Working point 10 10 Melting point Soda-lime la 200 400 600 800 1000 1200 1400 1600 1B00 Temoerature ("C) (a) (b) Figure 6. (a) Press and blow method and (b) temperature dependence of viscosity for various types of glasses (e AsooA