Zobrazeno 1 - 10
of 453
pro vyhledávání: '"Fracture (geology)"'
Publikováno v:
Journal of the European Ceramic Society. 41:139-150
The brittle fracture may occur in the application of piezoelectric ceramics, but the traditional research is still limited to the static fracture of the materials. Based on the improved Hopkinson pressure bar loading system and high-speed photography
Autor:
A.K. Musaffar, J. D. Kiser, Kathleen M. Sevener, Samantha Daly, N.R. McCarthy, B. Swaminathan, Tresa M. Pollock, Amjad S. Almansour
Publikováno v:
Journal of the European Ceramic Society. 41:6883-6893
The relationship between acoustic emission (AE) and damage source areas in SiC/SiC minicomposites was modeled using insights from tensile testing in-scanning electron microscope (SEM). Damage up to matrix crack saturation was bounded by: (1) AE gener
Publikováno v:
Ceramics International. 47:24527-24533
The unidirectional-laminated Cf/SiC–Al composites were prepared by using precursor infiltration and pyrolysis (PIP) and vacuum pressure infiltration processes. Bulk density and open porosity of as-prepared Cf/SiC–Al composites were characterized
Publikováno v:
Ceramics International. 47:24130-24138
In this work, we adopted PIP technology to introduce SiC ceramics into the carbon fiber bundles of C/C–SiC composites. The obtained C/C–SiC composites containing PIP-SiC exhibited improved flexural strength. Meanwhile, the strength difference was
Publikováno v:
Ceramics International. 47:21077-21082
The in situ axial X-ray diffraction patterns of four ceramic powder samples (MgO, Al2O3, AlN, and cBN) that were compressed in a diamond anvil cell under uniaxial non-hydrostatic conditions were recorded. The microscopic deviatoric stress as a functi
Publikováno v:
Journal of the European Ceramic Society. 41:5138-5146
Diamond foils are exceptionally strong yet brittle. One approach to make ceramic foils less susceptible to brittle fracture is to introduce interfaces into the material that provide pathways for crack deflection. In this study, we were able to produc
Publikováno v:
Ceramics International. 47:19254-19259
A layer of TiO2 nanotubes was synthesized on a pure Ti plate by anodization. Direct soldering of the TiO2 nanotubes in air was successfully achieved by using a pure Sn solder with the assistance of ultrasonic vibration. The results indicated that, un
Publikováno v:
Ceramics International. 47:19546-19555
In this study, TiC/TC4 composites were fabricated using selective laser melting (SLM), and the deformation mechanism and fracture characteristics of the composites with nano-sized TiC particles formed in situ were studied. The experimental results sh
Publikováno v:
Journal of the European Ceramic Society. 41:4294-4301
Air plasma sprayed (APS) 7 wt.% yttria-stabilized zirconia (7YSZ) coatings have a multitude of microstructural defects, at various length scales, such as pores, intra-splat and inter-splat micro-cracks, which cumulatively affect the mechanical proper
Publikováno v:
Ceramics International. 47:19737-19742
The high-temperature service performance of nearly fully dense 20 wt% BNW/SiO2 ceramic was systematically investigated. The oxidation damage and strength degradation of the whiskers combined with the surface microstructures of the samples predominant