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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.
A commercially available polycrystalline alumina is tested using three different methods: three-point bend, four-point bend, and uniaxial tension.
motion occurs on the primary slip system when the applied stress is 30 MPa, what is the inherent lattice resistance to dislocation motion?
Assuming that the dislocation initially always lies parallel to the initial surface, estimate the current that flows across the sample.
The most useful way to express surface area is in terms of m2/g. Using these units what is the surface area of Pt catalyst particles in Figure illustrated below
Construct a chart summarizing the principal scattering techniques used to characterize the structure, chemistry
The image distinguishes the regions with different chemistry directly and with high spatial resolution. Explain the physical process underlying this observation
During the processing of ceramics containing crystalline quartz a phase transformation occurs on cooling/ heating between the a form
Calculate the force of attraction between a Na+ and a Cl- ion the centers of which are separated by 1.5 nm.