作者： S Nambu , M Enoki , F Takahashi
DOI:
关键词: Relative density 、 Creep 、 Sintering 、 Stress (mechanics) 、 Strain rate 、 Three point flexural test 、 Deformation (engineering) 、 Materials science 、 Composite material 、 Ceramic
摘要: Recently, ceramics is extensively applied to structural materials and components become larger more complex. Because of its large complex shape, ceramic are often prone fracture in the sintering process. The simulation has been investigated prevent fracture. However, was difficult because strength during not well so far. In this study, we measured alumina green compact proposed models for strength. Two kinds were used measure Three point bending test at elevated temperature performed estimated each temperature. based on creep behavior sintered also proposed. evaluated by deformation stress ductile manner above 1373K. high strain rate increased until about 1573K decreased over 1573K. contrast, low with effect density investigated. During shrinkage rate, there no relative observed. Furthermore, experimental results compared good agreement results. Accordingly, predicted these parameters. We could predict This result permits us carry out firing expect applies another materials.