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Why are graphite dies widely used for hot pressing? Under what conditions would the use of graphite not be appropriate?
Which method would you choose to form each of the following shapes; briefly justify your choice.
If the experiment were repeated at 1600°C, how would these results change?
Explain briefly the differences between jet milling, vibratory milling, and agitated ball milling.
What are the different forms of commercially available fiber that contain mainly alumina and silica?
Determining the relative amount of whiskers in the composite and also the composition of the whiskers and matrix phases?
Compare the material costs involved in making a BN-reinforced Al2O3 CMC composite by (a) combining the individual constituents
Compare the use of scattering of visible light and that of X-rays to determine particle size distributions.
What causes refraction in glass? Why is smoky quartz smoky? If you increase the wavelength, how does the refractive index change?
What is dispersion and why does glass cause it? How would you expect the properties of GeO2 glass to differ from those of SiO2 glass?
Libyan Desert glass was produced naturally. Is pressure or temperature the more important factor? Explain your reasoning as quantitatively as possible.
We have also investigated some of the rich artistic traditions of cultures outside of Europe in Africa, the Americans, China, Japan, and around the Pacific Rim
We can make glass based on B and on P. What will the bonding characteristics of these two glasses be? Suggest three modifiers for each glass.
Na is a network modifier for SiO2 glass. How would Li and K compare to Na in this role? Similarly Ca is present in soda-lime glass;
Why would spinning rather than dipping be used to produce PZT films for applications such as MEMS?
Using the data in Figure determine the activation energy for viscous flow in the soda-lime-silica glass.
What are the properties of carbon nanotubes that make them of interest for this application?
Calculate the theoretical strength of MgO. Are there any conditions under which this value would be attainable?
Given the information in the text, determine the orientation of the samples.
How would you propose characterizing nanoparticles in the glaze on a priceless pot? Breaking the pot, even a little bit, is not allowed.
List the possible applications for zeolites and mesoporous ceramics.
What was the Industrial Revolution? Why did the Industrial Revolution start in Great Britain?
What do we mean by "unstabilized." ow can you account for the difference in the predicted values and experimental values?
Is Young's modulus affected more by the presence of an intergranular glass phase or an equal amount of porosity? Justify your answer with a suitable calculation
According to the Enabling Act, Hitler had the right to make any law he wanted to without asking the German parliament.