Mechanical properties of dense cordierite discs sintered by solar radiation heating

Oliveira, Fernando Almeida Costa; Shohoji, Nobumitsu; Martinez, Diego; Fernandes, Jorge Cruz; Rodriguez, Jose; Rosa, Luís Guerra; Cañadas, Inmaculada

http://hdl.handle.net/10400.9/1071

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Authors

Oliveira, Fernando Almeida Costa

Shohoji, Nobumitsu

Martinez, Diego

Fernandes, Jorge Cruz

Rodriguez, Jose

Rosa, Luís Guerra

Cañadas, Inmaculada

Abstract(s)

Consolidation of cordierite disc specimens was undertaken under concentrated solar beam in a solar furnace at PSA (Plataforma Solar de Almerıá). Satisfactory extent of densification was achieved by the present solar-sintering experiment. The mechanical properties measured for the solar-sintered cordierite test pieces were; density ¼ 2:45 0:02 g/cm3, Vickers microhardness HV ¼ 7:31 0:29 GPa, Young’s modulus E ¼ 97 5 GPa, shear modulus G ¼ 38 2 GPa, Poisson ratio ¼ 0:27 0:01, fracture toughness KIC ¼ 1:50 0:15 MPa m1=2 and modulus of rupture evaluated by ring-on-ring test MORROR ¼ 57:8 13:7 MPa which were comparable to those of the counterparts sintered by conventional industrial gas furnace.

Keywords

Cordierite Solar furnace Sintering Powder density Uniaxial flexure strength Equibiaxial flexure strength

URI

http://hdl.handle.net/10400.9/1071

Citation

Oliveira, F. A. C.; Shohoji, N.; Martinez, D.; Fernandes, J. C.; Rodriguez, J.; Rosa L. G.; Canadas, I. Mechanical properties of dense cordierite discs sintered by solar radiation heating. In: Materials Transactions vol. 50, nº 9 , 2009, p.2221-2228