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Title: Damage formation, fatigue behavior and strength properties of ZrO{sub 2}-based ceramics

Abstract

It is suggested that a non-destructive testing technique using a three-dimensional X-ray tomography be applied to detecting internal structural defects and monitoring damage formation in a ceramic composite structure subjected to a bending load. Three-point bending tests are used to investigate the fatigue behavior and mechanical and physical properties of medical-grade ZrO{sub 2}-based ceramics. The bending strength and flexural modulus are derived under static conditions at a loading rate of 2 mm/min. The fatigue strength and fatigue limit under dynamic loading are investigated at a frequency of 10 Hz in three stress ranges: 0.91–0.98, 0.8–0.83, and 0.73–0.77 MPa of the static bending strength. The average values of the bending strength and flexural modulus of sintered specimens are 43 MPa and 22 GPa, respectively. The mechanical properties of the ceramics are found to be similar to those of bone tissues. The testing results lead us to conclude that the fatigue limit obtained from 10{sup 5} stress cycles is in the range 33–34 MPa, i.e. it accounts for about 75% of the static bending strength for the test material.

Authors:
;  [1]; ;  [2];  [1];  [3]
  1. Tomsk State University, Tomsk, 634050 (Russian Federation)
  2. Immanuel Kant Baltic Federal University, Kaliningrad, 236041 (Russian Federation)
  3. (Russian Federation)
Publication Date:
OSTI Identifier:
22608279
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1760; Journal Issue: 1; Conference: PC'16: International conference on physics of cancer: Interdisciplinary problems and clinical applications 2016, Tomsk (Russian Federation), 22-25 Mar 2016; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BONE TISSUES; CERAMICS; DAMAGE; DEFECTS; DYNAMIC LOADS; FATIGUE; FLEXURAL STRENGTH; LOADING RATE; NONDESTRUCTIVE TESTING; PHYSICAL PROPERTIES; PRESSURE RANGE GIGA PA; SKELETON; STRESSES; THREE-DIMENSIONAL CALCULATIONS; TOMOGRAPHY; X RADIATION; ZIRCONIUM OXIDES

Citation Formats

Kozulin, A. A., E-mail: kozulyn@ftf.tsu.ru, Kulkov, S. S., Narikovich, A. S., Leitsin, V. N., Kulkov, S. N., E-mail: kulkov@ispms.ru, and Institute of Strength Physics and Materials Science SB RAS, Tomsk, 634055. Damage formation, fatigue behavior and strength properties of ZrO{sub 2}-based ceramics. United States: N. p., 2016. Web. doi:10.1063/1.4960255.
Kozulin, A. A., E-mail: kozulyn@ftf.tsu.ru, Kulkov, S. S., Narikovich, A. S., Leitsin, V. N., Kulkov, S. N., E-mail: kulkov@ispms.ru, & Institute of Strength Physics and Materials Science SB RAS, Tomsk, 634055. Damage formation, fatigue behavior and strength properties of ZrO{sub 2}-based ceramics. United States. doi:10.1063/1.4960255.
Kozulin, A. A., E-mail: kozulyn@ftf.tsu.ru, Kulkov, S. S., Narikovich, A. S., Leitsin, V. N., Kulkov, S. N., E-mail: kulkov@ispms.ru, and Institute of Strength Physics and Materials Science SB RAS, Tomsk, 634055. Tue . "Damage formation, fatigue behavior and strength properties of ZrO{sub 2}-based ceramics". United States. doi:10.1063/1.4960255.
@article{osti_22608279,
title = {Damage formation, fatigue behavior and strength properties of ZrO{sub 2}-based ceramics},
author = {Kozulin, A. A., E-mail: kozulyn@ftf.tsu.ru and Kulkov, S. S. and Narikovich, A. S. and Leitsin, V. N. and Kulkov, S. N., E-mail: kulkov@ispms.ru and Institute of Strength Physics and Materials Science SB RAS, Tomsk, 634055},
abstractNote = {It is suggested that a non-destructive testing technique using a three-dimensional X-ray tomography be applied to detecting internal structural defects and monitoring damage formation in a ceramic composite structure subjected to a bending load. Three-point bending tests are used to investigate the fatigue behavior and mechanical and physical properties of medical-grade ZrO{sub 2}-based ceramics. The bending strength and flexural modulus are derived under static conditions at a loading rate of 2 mm/min. The fatigue strength and fatigue limit under dynamic loading are investigated at a frequency of 10 Hz in three stress ranges: 0.91–0.98, 0.8–0.83, and 0.73–0.77 MPa of the static bending strength. The average values of the bending strength and flexural modulus of sintered specimens are 43 MPa and 22 GPa, respectively. The mechanical properties of the ceramics are found to be similar to those of bone tissues. The testing results lead us to conclude that the fatigue limit obtained from 10{sup 5} stress cycles is in the range 33–34 MPa, i.e. it accounts for about 75% of the static bending strength for the test material.},
doi = {10.1063/1.4960255},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1760,
place = {United States},
year = {Tue Aug 02 00:00:00 EDT 2016},
month = {Tue Aug 02 00:00:00 EDT 2016}
}