Paper Title:
Mechanical Properties and Microstructure of Partially Sintered Zirconia Ceramics
  Abstract

Partially sintered zirconia ceramics (PSZCs) for dental uses were prepared from zirconia nanopowder via isostatic pressing and partially sintering. The open porosities, pore diameters, grain sizes and mechanical properties of the ceramics with different densities were studied. The results show that the pores formed in the PSZCs are all open pores, with a diameter distribution of 60nm~130nm and a grain size distribution of 120~170nm. The machinability becomes worse when the density of PSZC is higher than 75% of the theoretical density, so a ceramic named PSZC-70% with density of 70%TD was selected as the target material. Its bending strength is 168 MPa and fracture toughness is 1.8 MPa·m1/2. A dental restoration framework can be obtained via machining the PSZC-70% on a dental CAD/CAM system.

  Info
Periodical
Key Engineering Materials (Volumes 368-372)
Edited by
Wei Pan and Jianghong Gong
Pages
1252-1254
DOI
10.4028/www.scientific.net/KEM.368-372.1252
Citation
S. B. Li, Z. H. Chen, Y. M. Zhao, Z. Y. Wang, L. H. Tang, X. Y. Zhao, J. W. Chen, C. Xie, X. N. Li, "Mechanical Properties and Microstructure of Partially Sintered Zirconia Ceramics", Key Engineering Materials, Vols. 368-372, pp. 1252-1254, 2008
Online since
February 2008
Export
Price
$35.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: X.F. Tao, Li Ping Zhang, Y.Y. Zhao
Abstract:This paper investigated the mechanical response of porous copper manufactured by LCS under three-point bending and Charpy impact conditions....
1863
Authors: Roberta M.C. Sasahara, H.N. Yoshimura, C. Fredericci, Alberto Calasans, Paulo Francisco Cesar, André Luiz Molisani
Abstract:The aim of this work was to establish a route to produce pre-sintered blocks of Y-TZP (yttria stabilized tetragonal zirconia polycrystal)...
712
Authors: Ying Chun Zhang, Ze Shuang Wu, Shu Ming Wang, Xiu Juan Wan, Yan Hong Liu
Abstract:As an important solid tritium breeding ceramic material, Li2TiO3 pebbles with the diameter of 1mm are used in the breeding pebble bed for...
310
Authors: Jun Ting Luo, Chun Xiang Zhang, Hai Feng Ma, Ge Wang
Chapter 1: Mineral Materials
Abstract:The amorphous nano-sized silicon nitride powders were sintered by cold isostatic pressing –normal press sintering method. The sintering...
17
Authors: Jing Yuan Yu, Qiang Li
Chapter 3: Material Engineering and Science
Abstract:Mass segregation of Al2O3 slurries during centrifugal slip casing has important effect on microstructure and mechanical property of sintered...
3584