Mechanical properties of zirconia periodic open cellular structures

被引：8

作者：

Fabris, Douglas ^{[1
]}

Mesquita-Guimaraes, Joana ^{[2
]}

Pinto, Paulo ^{[2
]}

Souza, Julio C. M. ^{[3
]}

Fredel, Marcio C. ^{[1
]}

Silva, Filipe S. ^{[2
]}

Henriques, Bruno ^{[1
,2
,4
]}

机构：

[1] Fed Univ Santa Catarina UFSC, Ceram & Composite Mat Res Grp CERMAT, Campus Trindade, Florianopolis, SC, Brazil

[2] Univ Minho, CMEMS UMinho, Campus Azurem, P-4800058 Guimaraes, Portugal

[3] CESPU, Inst Invest & Formacao Avancada Ciencias & Techol, Rua Cent Gandra 1317, P-4585116 Gandra Prd, Portugal

[4] Univ Fed Santa Catarina, Postgrad Program Dent PPGO, Sch Dent DODT, Campus Trindade, BR-88040900 Florianopolis, SC, Brazil

来源：

CERAMICS INTERNATIONAL | 2019年 / 45卷 / 13期

关键词：

Mechanical properties; Yttria-stabilized zirconia; Periodic opens cellular structures; CAD/CAM technique; Finite element analysis; YTTRIA-STABILIZED ZIRCONIA; PRESSED COCRMO ALLOY; POROUS CERAMICS; WEAR BEHAVIOR; STRENGTH; SURFACE; COMPOSITES; BOND; MICROSTRUCTURE; TRANSFORMATION;

D O I：

10.1016/j.ceramint.2019.05.010

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The aim of this study was to manufacture zirconia periodic open cellular structures (POCS) (39%-57% porosity) and evaluate their mechanical properties. Zirconia POCS with 39%, 47% and 57% porosity were obtained from a CAD/CAM blank using a CNC milling machine. Specimens with a feldspar-based porcelain infiltrated in the porosities were also produced and tested. The elastic and inelastic properties of the all samples were obtained by compression strength tests. The structures were analyzed using XRD and SEM. FEA was also performed to evaluate the porous structures and for optimization. Zirconia POCS were successfully produced using a CAD/CAM technique. Porous size and distribution can be easily modified to tailor the desired POCS mechanical properties. Elastics and inelastic properties were well fitted by the Gibson-Ashby model, which allows designing POCS with predictable results.

引用

页码：15799 / 15806

页数：8

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