Microwave sintering of multiple aritcles Page: 5 of 18
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PRIEF SUMMARY OF THE DRAWINGS
FIGURE 1 depicts a microwave sintering container for
use in sintering alumina articles in sectional side view.
FIGURE 2 is a sectional plan view of the sintering
05 container of Figure 1.
FIGURE 3 depicts a microwave sintering container for
use in sintering articles of alumina and silicon carbide in
sectional side view.
DETAILED DESCRIPTION OF THE INVENTION
10 This invention is described in a paper entitled
"Microwave Sintering of Multiple Alumina and Composite
Components" by Katz and Blake which appeared in the
American Ceramic Society Bulletin, vol. 70, no. 8 (August
1991). This paper is hereby incorporated in full into this
15 patent application.
Figures 1 and 2 depict a container which was used in
experimentation in sintering alumina articles. Both are
section views which are taken as shown by the section
arrows on each drawing. The alumina sintering container
20 has a base layer 6 of insulating material upon which rests
a layer 5 of zirconia which serves as insulation and as a
susceptor of microwave radiation. A hollow cylindrical
ring 7 of insulating material defines the sidewall of
sintering chamber 1. The upper surface of zirconia layer 5
25 is the floor of sintering chamber 1. A layer of alumina
particles 8 is located on floor layer 5. The articles of
alumina which are sintered rest upon particles 8. For
drawing convenience, c ly one alumina article 9 is shown in
Figure 1 and none are shown in Figure 2. Zirconia element
30 4 surrounds ring 7 and has a square planform, as can be
seen in Figure 2. A circular planform may also be used for
zirconia element 4. There is a small gap 10 between ring 7
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Blake, R. D. & Katz, J. D. Microwave sintering of multiple aritcles, patent, December 31, 1992; New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc1389885/m1/5/: accessed May 26, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.