scholarly journals Effect of sample test volume and geometry on the tensile mechanical behavior of SiC/SiC continuous fiber ceramic composites. Final report

1998 ◽  
Author(s):  
J. Sankar ◽  
A.D. Kelkar ◽  
J. Neogi
Keyword(s):  
Mechanical Behavior ◽  
Ceramic Composites ◽  
Final Report ◽  
Continuous Fiber ◽  
Test Volume ◽  
Sample Test

scholarly journals Oxide Bioceramic Composites in Orthopedics and Dentistry

2021 ◽  
Vol 5 (8) ◽  
pp. 206
Author(s):  
Piconi Corrado ◽  
Sprio Simone
Keyword(s):  
Mechanical Behavior ◽  
Hip Replacement ◽  
Ceramic Composites ◽  
Clinical Applications ◽  
Wide Field ◽  
Joint Replacements ◽  
Composite Systems ◽  
Third Phase ◽  
Main Component ◽  
Zirconia Toughened Alumina

Ceramic composites based on alumina and zirconia have found a wide field of application in the present century in orthopedic joint replacements, and their use in dentistry is spreading. The development of this class of bioceramic composites was started in the 1980s, but the first clinical applications of the total hip replacement joint were introduced in the market only in the early 2000s. Since then, several composite systems were introduced in joint replacements. These materials are classified as Zirconia-Toughened Alumina if alumina is the main component or as Alumina-Toughened Zirconia when zirconia is the main component. In addition, some of them may contain a third phase based on strontium exa-aluminate. The flexibility in device design due to the excellent mechanical behavior of this class of bioceramics results in a number of innovative devices for joint replacements in the hip, the knee, and the shoulder, as well in dental implants. This paper gives an overview of the different materials available and on orthopedic and dental devices made out of oxide bioceramic composites today on the market or under development.

Structure Evolution in Al2O3 - ZrO2(Y2O3) Ceramic Composites during Sintering

2010 ◽  
Vol 65 ◽  
pp. 11-15
Author(s):  
Ya. Dyatlova ◽  
S.S. Ordanyan ◽  
Andrey Osmakov ◽  
V. Pesin ◽  
V. Rumyantsev
Keyword(s):  
Mechanical Behavior ◽  
Ceramic Composite ◽  
Large Angle ◽  
Tetragonal Zirconia ◽  
Ceramic Composites ◽  
Structure Evolution ◽  
Composite Ceramics ◽  
X Ray Diffraction ◽  
Composite Powders ◽  
Microstructure Parameters

The paper demonstrates the possibility to control the degree of tetragonal zirconia stabilization, microstructure and physical and mechanical behavior of Al2O3 -ZrO2(Y2O3) ceramic composite. Control is exerted via the process variables during deposition synthesis of nanosized composite powders from hydroxide salts, and their subsequent heat treatment and consolidation. Morphology features of nanosized powder systems and microstructures of the consolidated nanostructured materials were characterized by BET surface are measurements, scanning electron microscopy (both standard and HR), and large-angle X-ray diffraction. Correlations are established between microstructure parameters, physical and mechanical behavior of composite ceramics and a degree of stabilization of tetragonal ZrO2.

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