Fracture Toughness Prediction of Composite Materials

Author(s):  
Bethany Jones ◽  
Kary Thanapalan ◽  
Ewen Constant
2013 ◽  
Vol 58 (2) ◽  
pp. 509-512 ◽  
Author(s):  
W. Chao ◽  
X. Xiangxin ◽  
C. Xiaozhou ◽  
Y. He ◽  
Ch. Gongjin

In this paper, we studied the effect of Ti addition on the microstructure and fracture toughness of Boron nitride- Aluminum (BN-Al) composite materials that were synthesized by vacuum infiltration. The BN-Al composite materials were fabricated by preheating the [Ti+BN] preforms at 1700º for 1 hour before Al alloys were infiltrated into the preforms in a vacuum atmosphere at 1100º for 2 hours. X-ray diffraction (XRD) patterns showed that the diffraction peaks of titanium diboride (TiB2) appeared when the [Ti+BN] preforms were preheated. It is thought that metal Al protected are visible and this could be achieved by the generation of TiB2 when Al infiltrated into the preform from fractography. The matching fracture toughness of the [Ti+BN] preforms gradually improve when Ti content was increased.


Author(s):  
Oksana Morozova ◽  
Edwin Gevorkyan

This descriptive review presents current knowledge about the bioengineering use of a zirconium dioxide, the advantages and disadvantages of the material, and the prospects for research in this direction. The work reflects the success of the practical application of the zirconium dioxide as a material for dental structures and biological implants. Such practical characteristics, such as color-stability, chemical stability, good aesthetics, biocompatibility and durability, allowed to actively use the zirconium dioxide as a material for producing various dental structures. In comparison with other ceramics, the presence of high-performance of strength and fracture toughness of the zirconium dioxide enables the use of this material as an alternative material for the reconstructions in the readings with considerable loads. High hardness determines the zirconium dioxide as an excellent material for articular prostheses, because of its hardness, provides a low level of wear and excellent biocompatibility. However, along with positive characteristics, a widespread practical problem of using the zirconium dioxide in dentistry is a chip or fracture of veneering ceramics. It has also been reported that there is a shortage of orthopedic implants such as hydrothermal stability. The solution of such problems is indicated and the use of composite materials based on the zirconium dioxide, which allows to solve a similar problem, as well as to increase the service life and reliability of orthopedic implants by providing a higher fracture toughness and mechanical strength. The existence of such composite materials based on the zirconium dioxide provides a significant increase in the wear resistance of orthopedic implants, which is essential for successful prosthetics


2013 ◽  
Vol 1 (1) ◽  
pp. 11 ◽  
Author(s):  
Fatema Yusuf ◽  
Savitha Adiga ◽  
Kusum Bashetty ◽  
Jayshree Hegde ◽  
Rupali Karale ◽  
...  

2011 ◽  
Author(s):  
Jennifer A. VanderVennet ◽  
Terrisa Duenas ◽  
Yuris Dzenis ◽  
Chad T. Peterson ◽  
Charles E. Bakis ◽  
...  

2002 ◽  
Vol 88 (3) ◽  
pp. 307-313 ◽  
Author(s):  
Lisa A. Knobloch ◽  
Ronald E. Kerby ◽  
Robert Seghi ◽  
Jeffrey S. Berlin ◽  
Nancy Clelland

2018 ◽  
Vol 60 (3-4) ◽  
pp. 266-272 ◽  
Author(s):  
A. A. Stepashkin ◽  
D. Yu. Ozherelkov ◽  
Yu. B. Sazonov ◽  
A. A. Komissarov

Sign in / Sign up

Export Citation Format

Share Document