scholarly journals Repair of bone segment defects with surface porous fiber‐reinforced polymethyl methacrylate (PMMA) composite prosthesis: Histomorphometric incorporation model and characterization by SEM

2008 ◽  
Vol 79 (4) ◽  
pp. 555-564 ◽  
Author(s):  
Mikko P Hautamäki ◽  
Allan J Aho ◽  
Pasi Alander ◽  
Jami Rekola ◽  
Jarmo Gunn ◽  
...  
Keyword(s):  
Polymethyl Methacrylate ◽  
Fiber Reinforced ◽  
Porous Fiber ◽  
Bone Segment ◽  
Incorporation Model

scholarly journals A Ligature Model for Fiber Reinforced Porous Composites

1998 ◽  
Vol 7 (5) ◽  
pp. 096369359800700
Author(s):  
Xinyu Huang ◽  
Ken L. Reifsnider
Keyword(s):  
Life Prediction ◽  
Porous Matrix ◽  
Fiber Reinforced ◽  
Porous Fiber ◽  
Reinforced Composite ◽  
Filament Wound ◽  
Effective Media ◽  
Load Carrying ◽  
Mechanical Models ◽  
Porous Composites

The authors have developed a modeling approach that has the ability to analyze porous fiber reinforced composite materials. The meso-level geometry is modeled by ligatures and effective media. Ligatures represent fiber tows, the major load-carrying components in the material. Effective media represent the porous matrix. The properties of the ligatures and effective media come from micro-mechanical models. Global stiffness can be successfully predicted. Residual strength and life prediction could also be made from this representation. The approach is validated by an example calculation for a filament wound tubular structure with porosity of the order of 60 percent.

TEM characterization of reaction zone in a SiC fiber-reinforced titanium alloy

1988 ◽  
Vol 46 ◽  
pp. 738-739
Author(s):  
G. Das ◽  
R. E. Omlor
Keyword(s):  
Titanium Alloys ◽  
Reaction Zone ◽  
Carbon Layer ◽  
Fiber Reinforced ◽  
Reaction Products ◽  
Sic Fibers ◽  
Sic Fiber ◽  
The Matrix ◽  
Immense Potential

Fiber reinforced titanium alloys hold immense potential for applications in the aerospace industry. However, chemical reaction between the fibers and the titanium alloys at fabrication temperatures leads to the formation of brittle reaction products which limits their development. In the present study, coated SiC fibers have been used to evaluate the effects of surface coating on the reaction zone in the SiC/IMI829 system.IMI829 (Ti-5.5A1-3.5Sn-3.0Zr-0.3Mo-1Nb-0.3Si), a near alpha alloy, in the form of PREP powder (-35 mesh), was used a茸 the matrix. CVD grown AVCO SCS-6 SiC fibers were used as discontinuous reinforcements. These fibers of 142μm diameter contained an overlayer with high Si/C ratio on top of an amorphous carbon layer, the thickness of the coating being ∽ 1μm. SCS-6 fibers, broken into ∽ 2mm lengths, were mixed with IMI829 powder (representing < 0.1vol%) and the mixture was consolidated by HIP'ing at 871°C/0. 28GPa/4h.

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