Hot isostatic pressing is to be used to produce the femoral head components of hip implants made from a novel grade of zirconia. A series of manufacturing trials have demonstrated that the processing route results in post-sintered surface features 43- 107 μm (mean 74 µm) in size. In clinical use it is anticipated that the femoral heads will be loaded to maximum stress level of 50% of its tensile strength once implanted. What is the critical flaw size when in service and will the implant require polishing for it to withstand loading during clinical use? Where: • You may assume a value of 1.4 for Y • The grade of zirconia has a Tensile strength of 980 MPa and a fracture toughness of 11 MPa.m 0.5

Hot isostatic pressing is to be used to produce the femoral head components of hip implants made from a novel grade of zirconia. A series of manufacturing trials have demonstrated that the processing route results in post-sintered surface features 43- 107 μm (mean 74 µm) in size. In clinical use it is anticipated that the femoral heads will be loaded to maximum stress level of 50% of its tensile strength once implanted. What is the critical flaw size when in service and will the implant require polishing for it to withstand loading during clinical use? Where: • You may assume a value of 1.4 for Y • The grade of zirconia has a Tensile strength of 980 MPa and a fracture toughness of 11 MPa.m 0.5

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

Glass ceramics have low coefficients of thermal expansion. State why this is the case (hint; consider the microstructure) and then by means of a suitable diagram, describe and explain the thermal treatment employed in the production of glass ceramics.
Explain sintering and provide an ICT diagram of the process
A coating process using suspended particles in a liquid can attain formation of an ultrafiltration ceramic top-layer on a porous support (substrate). Which type of coating mechanisms is most probable? What is the effect of the coating time on the thickness of the coated layer? What is the effect of the pulling rate out of the liquid on the thickness of the coated layer?
Describe the role of finite element analysis (FEA) in the prototyping of mechanical components. How does it help in optimizing product designs for performance and reliability?
What is the definition of post treatment in 3D printing of plastics?
You are working as a quality control engineer in a glass manufacturing company. What characterization technique would you use for routine and quick analysis to decide whether any impurities from the glass melting furnaces are introduced to your glass products? Explain your reasoning
Alplas Plastics uses an extruder in which the barrel diameter = 0.4 m and length = 6.0 m. The extruder screw rotates at 65 rev/min; it has channel depth = 0.02 m and flight angle = 16°. The plastic melt has a shear viscosity = 85 Pa-s. Determine: (a) Qmax and pmax; (b) the shape factor Ks for a circular die opening in which Dd = 0.009 m and Ld = 0.03 m; and (c) the values of Q and p at the operating point
My project tilte is Interfacial and mechanical properties of polypropylene/silica nano- and microcomposites with Fabrication and Analysis Please help me what is the best subtitle in literature review what will be the heading for the liturer review
Hot isostatic pressing is to be used to produce the femoral head components of hip implants made from a novel grade of zirconia. A series of manufacturing trials have demonstrated that the processing route results in post-sintered surface features 43-107 µm (mean 74 µm) in size. In clinical use it is anticipated that the femoral heads will be loaded to maximum stress level of 50% of its tensile strength once implanted. What is the critical flaw size when in service and will the implant require polishing for it to withstand loading during clinical use? Where: • You may assume a value of 1.4 for Y • The grade of zirconia has a Tensile strength of 980 MPa and a fracture toughness of 11 MPa.m0.5 Select one or more: a. 81.8 μm b. 20.5 μm c. 40.9 μm Od. 163.6 μm De. O f. Yes No
Estimate the critical stress of the surface flaw in a ceramic whose Young's modulus and surface energy are 70 GPa and 0.24 erg/m2, respectively. Assume the propagation of a surface crack of length 0.03 mm.
Suggest suitable methods to characterize the nanomaterial product andname the properties you wish to measure.
What class of toughening mechanisms is usually at work in engineered ceramics, and why is this the case?