Borosilicate glass was coated with Al2O3 and SiC by the radio frequency (RF) magnetron-sputtering method under various conditions. The mechanical properties of coated materials were investigated with respect to the sputtering conditions. The roughness, por osity and resistivity of surfaces of coated materials were measured, and the surface characteristics were clarified. The hardness of material coated with Al2O3 and SiC layer was measured by using a dynamic hardness tester. The hardness hardly depended on...
英字タイトル:
Mechanical Properties of Borosilicate Glass Coated with Two-Layered Ceramics by Sputtering

In multiaxial low cycle fatigue, the directional distribution of initiated cracks affects the subsequent growth of a dominant crack. So, it is important to clarify the characteristics of crack initiation to improve the life evaluation in multiaxial fatigue. In this work, a simulation pr ocedure of fatigue crack initiation under multiaxial stresses was first established based on the modeling of crack initiation in slip-band systems assumed in polycrystalline metals. Especially, the directional distribution ...
英字タイトル:
Analysis of Inclusion Effect on Crack Initiation in Biaxial Low Cycle Fatigue