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Sintering temperature for a ceramic is typically

  • A.about two thirds of the melting point in kelvin
  • B.just above the melting point of the material itself
  • C.close to room temperature for most of the oxides
  • D.exactly the same as the material melting point

Answer: A

This is hot enough for appreciable diffusion but well below melting, which is the whole point of the powder route. Quoting the ratio in kelvin rather than celsius matters, since the ratio is meaningless on a scale with an arbitrary zero.

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