Bi-Axial Flexure Strength, Weibull Modulus and Fracture Mode of Alumina Glass-Infiltrated Core/Veneer Ceramic Composites

Abstract:

Article Preview

The purpose of this study is to determine the bi-axial flexural strength, weibull modulus and fracture mode of bilayered alumina glass-infiltrated core and the veneering porcelain. Forty disk specimens were fabricated from alumina glass-infiltrated core (HSDC-A) and veneer porcelain (Vintage AL). The specimens were equally divided into four groups as: MV, monolithic specimens of veneer material; MC, monolithic specimens of core material; BV, bilayered specimens with the veneer in tension; BC, bilayered specimens with core material in tension. Mean flexure strength, standard deviation and associated Weibull modulus were determined using bi-axial flexure (ball-on-ring) for each group. Both optical and scanning electron microscopy were employed for identification of the fracture mode and origin. The surface loaded in tension influenced the bi-axial flexural strength and reliability of the composites. The frequency of specimen delamination, Hertzian cone formation and sub-critical radial cracking in the bilayered discs are also dependent on the surface loaded in tension.

Info:

Periodical:

Key Engineering Materials (Volumes 353-358)

Edited by:

Yu Zhou, Shan-Tung Tu and Xishan Xie

Pages:

1556-1559

Citation:

J. Cui et al., "Bi-Axial Flexure Strength, Weibull Modulus and Fracture Mode of Alumina Glass-Infiltrated Core/Veneer Ceramic Composites", Key Engineering Materials, Vols. 353-358, pp. 1556-1559, 2007

Online since:

September 2007

Export:

Price:

$38.00

[1] Y Deng, P Miranda and A J Pajares. Biomed. Mater. Res. Vol. 67(2003), pp.828-833.

[2] R DeLong and W H Douglas. J. Dent. Res. Vol. 62(1983), pp.32-36.

[3] V Piddock, P M Marquis and H J Wilson. J. Dent. Vol. 15(1987), pp.153-158.

[4] M Guazzato, K A Proos and G Sara. Int. J. Prosthodont. Vol. 17(2004), pp.142-149.

[5] M Guazzato, K A Proos and L Quach. Biomaterials. Vol. 25(2004), pp.5045-5052.

[6] Y W Rhee, H W Kim and Y Deng. J. Am. Ceram. Soc. Vol. 84(2001), pp.561-565.

[7] Y W Rhee, H W Kim and Y Deng. J. Am. Ceram. Soc. Vol. 18(2001), pp.1066-1072.

[8] J R Kelly. J. Prosthet. Dent. Vol. 81(1999), pp.652-661.

[9] Y Deng, B R Lawn and I K Lloyd. J. Biomed. Mater. Res. Vol. 63(2002), pp.137-145.

Fetching data from Crossref.
This may take some time to load.