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The
atmosphere in the sintering zone of the furnace is controlled to prevent
changes in the material properties. In the pre-heating zone, lubricant
and adhesives will be decomposed and removed as gases. After the sintering
step, the component is cooled to achieve desired mechanical properties.
Sintered component densities may be as high as 95% of the density of the
single crystalline material. Shrinkage of the component may occur during
sintering, although alloying additions to metals may be used to minimize
this.
From:
"Manufacturing with Materials," Edwards and Endean (Eds.), Butterworth
(1990)
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