What are the key advantages and applications of ceramic materials in the field of mechanical engineering?

Name some properties of materials. How do you define these properties? Where do they come from?

Write or introduce the following topics of ceramics: • Types of ceramics • Sintering • Metal processing • Bioactive glass

You are looking for properties of a new lubricant your company uses, but only have access to a manual that is written in a foreign language, so you can't read the headers of a table with the material properties. However, the units are all in standard SI symbols. Which quantity is (most likely) the surface tension? The one with units of m2/s The one with units of N/m The one with units of N-s/m2 The one that is m2/(s²"K) The one with units of kg/m3 QUESTION 4 A large helium balloon, which can be approximated as a cylinder with a length of 5 m and a diameter of 2 m, is moored in standard atmospheric air via a small rope. What is the tensile force on the cord? Consider helium's density to be 0.17 kg/m3 and neglect the weight of the rope and thin material that makes the balloon's walls. 16.2 N 637 N 26.2 N 79.7 N 159 N