S. Tariolle et al /Journal of the European Ceramic Sociery 25 (2005)3639-3647 005 15 0 displacement(mm) 0.1 displacement(mm) Fig. 7.(a) Load-displacement curve of osite(BC-BN) ture of boron carbide and boron nitride (b) Fractograp of a composite(B C-BN) with interlayers with a mixture of boron carbide porosity of0.51(b)Fractography of a composite and boron nitride. The arrow next to the fractography indicates the direction S55 )with ith corn starch and with a porosity of 0.51. The of the crack propagation rrow next to the fractography indicates the direction of the crack propaga 20 CS45 I 10 048 Porosity in porous interlayers Fig 8. Work of rupture in function of the porosity in porous interlayers in composites(CS)with interlayers made with corn starch. 00250.05 0.1 displacement(mm) E ● max mun △ mean per layer Fig. 6.(a) Load-displacement curve of a composite(NSA)with interlay Porosity in porous interlayers ers under-sintered. (b) Fractography of a composite(NSA)with interlayers under-sintered. The arrow next to the fractography indicates the direction of Fig. 9. Lengths of crack deflection in function of the porosity in porous the crack propagation nterlayers in composites( CS)with interlayers made with corm starS. Tariolle et al. / Journal of the European Ceramic Society 25 (2005) 3639–3647 3643 Fig. 5. (a) Load–displacement curve of a composite (CS55) with interlayers with corn starch and with a porosity of 0.51. (b) Fractography of a composite (CS55) with interlayers with corn starch and with a porosity of 0.51. The arrow next to the fractography indicates the direction of the crack propaga￾tion. Fig. 6. (a) Load–displacement curve of a composite (NSA) with interlay￾ers under-sintered. (b) Fractography of a composite (NSA) with interlayers under-sintered. The arrow next to the fractography indicates the direction of the crack propagation. Fig. 7. (a) Load–displacement curve of a composite (B4C-BN) with inter￾layers with a mixture of boron carbide and boron nitride. (b) Fractography of a composite (B4C-BN) with interlayers with a mixture of boron carbide and boron nitride. The arrow next to the fractography indicates the direction of the crack propagation. Fig. 8. Work of rupture in function of the porosity in porous interlayers in composites (CS) with interlayers made with corn starch. Fig. 9. Lengths of crack deflection in function of the porosity in porous interlayers in composites (CS) with interlayers made with corn starch