Publications [#58829] of Franklin H. Cocks

Papers Published

1. Hurley, G.F. and Cocks, F.H., X-ray analysis of internal strain in neutron-irradiated silicon nitrides and oxynitrides, Am. Ceram. Soc. Bull. (USA), vol. 60 no. 12 (1981), pp. 1302 - 5
   (last updated on 2007/04/10)

   Abstract:
   Four silicon nitride and oxynitride materials were neutron-irradiated in the EBR-11 fission reactor at 1015K. Strength measurements were subsequently made on two of these materials and suggested a small strength decrease. X-ray line broadening analysis was performed to examine internal strain/stress as a source of weakening. In the case of Si₂ON₂ the only material for which both strength data and meaningful internal stress data could be obtained, the analysis showed that only a small strength decrease would be expected, despite high internal stress. However, it was concluded that the level of rms strain/stress observed would have a more significant effect in stronger forms of the same material

   Keywords:
   ceramics;fusion reactor materials;internal stresses;silicon compounds;strain measurement;stress-strain relations;X-ray diffraction examination of materials;