Publication Date:
2019-08-28
Description:
Experimental results are presented to show that interfacial failure in sapphire-reinforced niobium is characterized by 'large-scale' (5-15 microns) plasticity-controlled fiber displacements occurring under increasing loads. The results are based on the responses during thin-slice fiber pushout tests wherein the fiber is supported over a hole twice the fiber diameter. The results describe an interfacial failure process that should also occur near fiber ends during pullout when a fiber is well-bonded to a soft, ductile matrix, such that eventual failure occurs by shear within the matrix near the interface.
Keywords:
COMPOSITE MATERIALS
Type:
Scripta Metallurgica et Materialia (ISSN 0956-716X); 28; 12; p. 1583-1588.
Format:
text
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