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RESEARCH PRODUCT
Microstructure and mechanical effects of spark plasma sintering in alumina monolithic ceramics
Ramón TorrecillasI. ÁLvarez-clemaresSaid AgouramAmparo BorrellAdolfo Fernándezsubject
CeramicsMaterials scienceSpark plasma sinteringDislocationsMechanical propertiesThermal treatmentFracture toughnessFlexural strengthCIENCIA DE LOS MATERIALES E INGENIERIA METALURGICAGeneral Materials ScienceCeramicComposite materialMechanical EngineeringfungiMetals and Alloystechnology industry and agriculturefood and beveragesCondensed Matter PhysicsMicrostructureequipment and suppliesCreepMechanics of Materialsvisual_artvisual_art.visual_art_mediumGrain boundaryHigh-temperature deformationTransmission electron microscopydescription
The specific effects of spark plasma sintering (SPS) on the creep behavior, microstructure and mechanical properties of alumina monolithic ceramic were investigated. SPS introduces strains that concentrate at grain boundaries and inhibit crack growth, resulting in an improvement in the flexural strength and fracture toughness. However, creep blocks grain boundary movements and decreases the reliability of the material. These strains can be removed by a post-sintering thermal treatment, which plays an important role in the distribution of dislocations.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-04-01 |