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A plasticiser differs from a binder in that it

  • A.reduces the viscosity of a casting slip
  • B.raises the sintering temperature required
  • C.makes the binder film more flexible
  • D.holds the particles together mechanically

Answer: C

The binder supplies green strength and the plasticiser stops the binder film becoming brittle, so the compact tolerates handling and any small deformation. The two are usually specified together. A brittle binder film cracks and the compact loses its strength.

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