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In essence, by heating only the center of a volume of cubic zirconia, the material forms its own crucible from its cooler outer layers.
en.wikipedia.org There was already an established tradition of fiction for young women, in which school life was presented as a crucible for their development.
en.wikipedia.org The manufacturing process included primary steel production in the crucible furnace and the finishing of the final product in the adjacent workshop.
en.wikipedia.org One story goes that he showed up to stop the falling of a 50-ton crucible, set to fall on a group of steelworkers.
en.wikipedia.org As with his controversial painting series on homelessness, his work centered on the indefatigable human spirit rather than on political and economic crucibles.
en.wikipedia.org