<P> This thesis is concerned with the investigation of the diffusion
controlled reaction between MgO and β-quartz in the temperature range
1200 - 1450 °C in wet and dry atmospheres. The reactions were studied by
placing known faces of quartz crystals in direct contact with Mg0 powder,
heat treating them, and then investigating the cross sections. The product
layer was investigated by both reflected light and thin section metallography,
electron - microprobe and X- ray diffraction. Using Wagner's and
Schmalzried's ideas on solid state reactions, a theoretical model for the
diffusion controlled formation of silicates was developed. With this model,
a mechanism for the diffusion controlled formation of forsterite from MgO
and β-quartz was advanced. </P> / Thesis / Master of Science (MSc)
| Identifer | oai:union.ndltd.org:mcmaster.ca/oai:macsphere.mcmaster.ca:11375/18524 |
| Date | 02 1900 |
| Creators | Lenz, John |
| Contributors | Nicholson, P. S., Materials Science |
| Source Sets | McMaster University |
| Language | English |
| Detected Language | English |
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