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Discussion

Fractography examines a broken ceramic in order to

  • A.establish the full chemical composition of the body
  • B.locate the origin of the fracture and identify the flaw
  • C.measure the bulk density of the material rather accurately
  • D.determine the peak firing temperature that was used

Answer: B

Characteristic markings on the fracture surface radiate from the origin, and the flaw at that origin can usually be identified. Knowing whether it was a pore, an inclusion or a surface scratch points directly at the process stage responsible.

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