Fracture Energy and Strength Behavior of a Sodium Borosilicate Glass‐Al2O3 Composite System
作者： F. F. LANGE
DOI: 10.1111/J.1151-2916.1971.TB16016.X
关键词:
摘要: Fracture energy and strength were determined for three series within a sodium borosilicate glass-Al2O3 dispersed composite system. The average particle sizes of the Al2O3 dispersions , μm. Within each series, composites containing 0.10, 0.25, 0.40 vol fractions phase vacuum hot-pressed. fracture was at 77°K with double cantilever specimen configuration. Strength measured by 4-point flexural test. A significant increase in observed (up to 5 times glass without second-phase dispersion). depended on interparticle spacing size dispersion. These results could best be explained previously proposed model interaction crack front Surface roughness also contributed increased energy. Some strengthened significantly relative Calculation showed that dispersion ∼1 3 Thus, both size. opposing parameters ultimately behavior these composites.
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