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The purpose of milling a ceramic powder is chiefly to

  • A.reduce particle size and break up agglomerates
  • B.raise the chemical purity of the powdered material
  • C.increase the density of the finished fired part
  • D.remove the need for any binder at all to be added

Answer: A

A fine and well-dispersed powder sinters at a lower temperature and gives a more uniform microstructure. Milling changes the physical state of the powder rather than its chemistry, and in practice it usually reduces purity slightly through wear of the media.

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