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Keywords:

  • crystalline carbohydrate;
  • foams;
  • microstructure;
  • optical microscopy;
  • sintering

Abstract

A space-holder method using crystalline carbohydrate particles, as a novel leachable pattern for manufacturing open-cell metal foams is described. The method involves mixing and compaction, leaching and sintering processes. Open-cell Al foams with porosity up to 70% can be produced. The removal of the carbohydrate particles from the green compact is achieved by water leaching at room temperature. An appropriate sintering leads to a very good result as far as the microstructure achieved is concerned.