tetragonal zirconia
Abrasivity of Yttria Tetragonal Zirconia Polycrystal (Y-TZP) to dental enamel in comparison to noble white high palladium alloy
... of Zirconia and feldspathic porcelain against enamel, with differing polishing and finishing regimes and reported that the Zirconia tested was significantly less abrasive than the porcelain tested due to ...
18
Effect of Adding Nano Alumina on the Grain Size and the Mechanical Properties of Yttria-Stabilized Tetragonal Zirconia Polycrystals (Y-TZP)
... [20] Chen, Chih-Cheng, Hsing-I. Hsiang, and Chang-Min Zhou. "Effects of the addition of minute amounts of alumina on the microstructure and sintering behavior of yttria stabilized tetragonal zirconia ...
14
Growth of nanolaminate structure of tetragonal zirconia by pulsed laser deposition
... mainly tetragonal phase with no secondary phases at the interfaces and amorphous ...of tetragonal zirconia at temperatures well below the normal transformation temperature can be explained by the ...
7
Mechanism for Densification of Yttria Stabilized Tetragonal Zirconia Powder by Electric Current Activated/Assisted Sintering
... Figures 1 and 2 show the T vs. t and vs. t plots, respectively, for 3Y-TZP powder compacts consolidated at fixed currents from 700 to 1000 A. The instantaneous temperature and corresponding instantaneous relative density ...
8
Characterization of Cavities in Superplastically Deformed Tetragonal Zirconia Polycrystals by Means of Small Angle Neutron Scattering
... Small angle neutron scattering (SANS) method was applied to investigate morphology of cavities in superplastically deformed 3 mol% yttria stabilized tetragonal zirconia polycrystals (3Y-TZP). The 3Y-TZP ...
7
Fabrication and characterization of lithium metasilicate/disilicate glass ceramics and yttria tetragonal zirconia polycrystals for dental restorations
... Lithium disilicate glass-ceramics (LDGC) and yttria-stabilized tetragonal zirconia polycrystals (Y-TZP) are state-of-the-art materials for monolithic dental restorations. This is due to their excellent ...
305
Sol–gel dip coating of yttria-stabilized tetragonal zirconia dental ceramic by aluminosilicate nanocomposite as a novel technique to improve the bonding of veneering porcelain
... of zirconia-based dental ceramic by a sol–gel dip-coating technique on the bond strength of veneering porcelain to the yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) in ...and ...
9
Densification Behavior and Mechanical Properties of Cerium Oxide and Manganese Oxide doped Yttria Tetragonal Zirconia Polycrystals Ceramics for Dental Applications
... ceramics. Zirconia impart transformation toughening, because zirconia maintains strength and chemical ...Yttria-stabilised tetragonal zirconia polycrystalline ceramics (Y-TZP) has been a very ...
5
<p>Flexural strength of various types of computerized machinable ceramic veneered to yttria stabilized tetragonal zirconia polycrystalline ceramic upon different hybridized techniques</p>
... the zirconia substructure; however, they are within the acceptable ...ceramic zirconia bond toward the veneer, meaning that bonding might have also played an important role in the ...the ...
11
The Effect of a Small Amount SiO2 on Sintering Kinetics of Tetragonal Zirconia Nanopowders
... that zirconia is really remarkable for a wide range and combination of physical and mech- anical properties, such as high fracture toughness; high strength and hardness; biocompatibility; ionic conductiv- ity; ...
9
Internal accuracy of digitally fabricated cross-arch yttria-stabilized tetragonal zirconia polycrystalline prosthesis
... This investigation refused the null hypothesis that the precise- ness of prostheses was influenced by different construction techniques. A significantly different internal accuracy of restorations fabricated from both ...
12
Crystallinity, Microstructure and Mechanical Strength of Yttria Stabilized Tetragonal Zirconia Ceramics for Optical Ferrule
... mechanical properties and represents toughened zirconia ceramics [1,2]. The relationship between microstructure and mechanical properties in Y-TZP ceramics has been studied extensively over the past decade [3-5]. ...
5
Local Bonding States of Titanium and Germanium doped Tetragonal Zirconia Polycrystal and Their Correlation to High Temperature Ductility
... In cation-doped TZP, the segregation of dopant cations at grain boundary is observed through TEM-EDS analysis.4, 16 Assuming that Ge4+ or Ti4+ ions at grain boundaries have the same effe[r] ...
5
Effect of Small Amount of Insoluble Dopant on Tetragonal to Monoclinic Phase Transformation in Tetragonal Zirconia Polycrystal
... TZP) is the most popular material in such zirconia biocer- amics, but some composites or doped-materials are also used in recent years. For example, alumina-dispersed ceria stabilized TZP with small amount of ...
5
Atomistic Simulation Studies of WO3 stabilized tetragonal Zirconia
... properties. Zirconia is the material under investigation in this thesis. Zirconia exhibits three different types of crystal structures with the increase in ...doped zirconia has been a topic ...
243
Modification of Yttria-doped Tetragonal Zirconia Polycrystal Ceramics
... Many efforts have been made to reduce the blocking effect in Y-TZP. It was found that the alumina added to the zirconia material acts as the silicon scavenger [18-20]. However, the effect of such an addition on ...
15
Review on the Translucency of Zirconia (Y-TZP) Ceramics for Dental Crown Applications
... yttria-stabilized tetragonal zirconia (Y-TZP) exhibits excellent biocompatibility and superior mechanical properties, both of which are attributed to its transformation toughening ...capability. ...
6
A Comparative Study to Evaluate the Effectiveness of Two Different Surface Treatments on the Retention of Zirconium Copings: An In Vitro Study
... Sandblasting is a commonly used surface treatment technique for dental crowns to improve the adhesion of the mating parts of a restoration. Ravi Kiran Chintapalli 8 in 2013 did a study on effect of different sandblasting ...
61
Biomechanical and histological evaluation of the osseointegration capacity of two types of zirconia implant
... ceria-stabilized zirconia–alumina nanocomposite (NanoZr) in comparison with that of 3 mol% yttria-stabilized tetragonal zirconia polycrystalline (3Y-TZP) in Sprague Dawley ...cylindrical ...
10
The Comparison of MgO and TiO2 Additives Role on Sintering Behavior and Microstructures of Reaction-Sintered Alumina-Zirconia-Mullite Composite
... and tetragonal zirconia can be similarly seen in both ...monoclinic zirconia and tetragonal zirconia, respectively, it can be stated that all the samples have these two phases; of ...
7