Y-TZP Ceramics: Key Concepts for Clinical Application

10.2341/08-79 ◽  
2009 ◽  
Vol 34 (3) ◽  
pp. 344-351 ◽  
Author(s):  
A. N. Cavalcanti ◽  
R. M. Foxton ◽  
T. F. Watson ◽  
M. T. Oliveira ◽  
M. Giannini ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aluminum Oxide ◽  
Clinical Application ◽  
Clinical Relevance ◽  
Air Abrasion ◽  
Adhesion Mechanism ◽  
Key Concepts ◽  
Oxide Particles

Clinical Relevance The description of the chief characteristics of Y-TZP ceramics provides a background for its clinical application. Both the improved mechanical properties and the lower bonding ability of Y-TZP materials are frequently suggested by the literature. Nevertheless, the combination of air abrasion with aluminum oxide particles (silanated or not), followed by materials containing special reactive monomers, seems to be a potential adhesion mechanism.

The Effectiveness of Alumina Powder on Carious Dentin Removal

10.2341/05-48 ◽  
2006 ◽  
Vol 31 (3) ◽  
pp. 371-376 ◽  
Author(s):  
C. Motisuki ◽  
L. M. Lima ◽  
E. S. Bronzi ◽  
D. M. P. Spolidorio ◽  
L. Santos-Pinto
Keyword(s):  
Aluminum Oxide ◽  
Clinical Relevance ◽  
Alumina Powder ◽  
Air Abrasion ◽  
Sound Structure ◽  
Oxide Particles

Clinical Relevance When an air abrasion system is used, 27 and 50 μm aluminum oxide particles remove carious dentin with maximum preservation of sound structure when compared to 125 μm particles.

scholarly journals Development of PE/PCL Bilayer Films Modified with Casein and Aluminum Oxide

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3090
Author(s):  
Anita Ptiček Siročić ◽  
Ana Rešček ◽  
Zvonimir Katančić ◽  
Zlata Hrnjak-Murgić
Keyword(s):  
Mechanical Properties ◽  
Thermal Properties ◽  
Water Vapor ◽  
Aluminum Oxide ◽  
Water Vapor Permeability ◽  
Vapor Permeability ◽  
Mechanical And Thermal Properties ◽  
Oxide Compound ◽  
Bilayer Films ◽  
Oxide Particles

The studied samples were prepared from polyethylene (PE) polymer which was coated with modified polycaprolactone (PCL) film in order to obtain bilayer films. Thin PCL film was modified with casein/aluminum oxide compound to enhance vapor permeability as well as mechanical and thermal properties of PE/PCL films. Casein/aluminum oxide modifiers were used in order to achieve some functional properties of polymer film that can be used in various applications, e.g., reduction of water vapor permeability (WVTR) and good mechanical and thermal properties. Significant improvement was observed in mechanical properties, especially in tensile strength as well as in water vapor values. Samples prepared with aluminum oxide particles indicated significantly lower values up to 60%, and samples that were prepared with casein and 5% Al2O3 showed the lowest WVTR value.

Mechanical properties of aged yttria-stabilized tetragonal zirconia polycrystal after abrasion with different aluminum oxide particles

2020 ◽  
Vol 124 (5) ◽  
pp. 599-604
Author(s):  
Suelem C. Barreto ◽  
Renally B.W. Lima ◽  
Flávio Henrique B. Aguiar ◽  
Carlos Tadeu D. Santos ◽  
Luís Alexandre M.S. Paulillo ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aluminum Oxide ◽  
Tetragonal Zirconia ◽  
Oxide Particles ◽  
Tetragonal Zirconia Polycrystal

Influence of Air Abrasion and Long-term Storage on the Bond Strength of Self-etching Adhesives to Dentin

10.2341/06-61 ◽  
2007 ◽  
Vol 32 (3) ◽  
pp. 217-224 ◽  
Author(s):  
F. M. G. França ◽  
A. J. S. Santos ◽  
J. R. Lovadino
Keyword(s):  
Bond Strength ◽  
Aluminum Oxide ◽  
Clinical Relevance ◽  
Air Abrasion ◽  
Long Term Storage ◽  
Term Storage ◽  
Over Time

Clinical Relevance The adhesiveness of self-etching systems, used with aluminum oxide air abrasion to dentin, decreases over time.

scholarly journals Tribological and Mechanical Properties of UHMWPE Polymer Composite filled with TiO2 and Al2O3 Particles used as TKR Implant

2020 ◽  
Vol 9 (6) ◽  
pp. 991-995
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Aluminum Oxide ◽  
Polymer Composite ◽  
Knee Joints ◽  
Wear Properties ◽  
Mechanical And Tribological Properties ◽  
Oxide Particles ◽  
The Impact ◽  
Modulus Polyethylene

This study focused on the development of a polyethylene biomaterial for replacement of the joints like knee joints, etc. Through forming aluminum oxide and titanium oxide particles into ultra-high molecular polyethylene, commonly known as high modulus polyethylene, this substance has strengthened its mechanical and wear properties. The composite is made using the injection molding machine by reinforcement materials like bio-inert aluminum oxide (Al2O3 ) and titanium di oxide (TiO2 ) with UHMWPE. Mechanical properties like Tensile, Bending, impact strength and hardness and wear rate of the synthesized polymer composite is tested according to ASTM standards.C3 composite shows enhancement in mechanical and tribological properties, only decrease in the impact strength is seen comparing to other two compositions. So C3 composite can be used as implant

Synthesis, Characterization, Environmental Properties and Mechanical Studies of SBR-Nano Aluminum Oxide Composites

2019 ◽  
Vol 3 (2) ◽  
pp. 139-153
Author(s):  
Rani Mankar ◽  
Wasudeo Gurnule
Keyword(s):  
Mechanical Properties ◽  
Raman Spectroscopy ◽  
Aluminum Oxide ◽  
Emulsion Polymerization ◽  
Nano Composites ◽  
Nano Composite ◽  
Environmental Resistance ◽  
Oxide Particles ◽  
Oxide Composites ◽  
Polymerization Method

Background: Rubber or nano aluminum oxide composites may be considered as potential materials in mechanical applications because of the adaptability of polymer properties of nanometric substances. Rubber nano-composite is prepared by using the emulsion polymerization method. Mechanical properties and environmental resistance properties are evaluated for a better rubber-filler interaction. Purpose: In this examination, the Raman spectroscopy and the mechanical properties of nanocomposites are based on Styrene-Butadiene rubber (SBR) and were explored within the sight of nano aluminum oxide additive. The nano-composites were prepared by mechanically mixing and utilizing two-roll mills. Nano aluminum oxide particle suspensions were added to SBR and the abrasion and spectral properties were overviewed. Materials and Methods: Nano aluminum oxide, 2, 2’- dithiobis, tetramethyl thiuram disulfide, N, N’- Diphenyl P- phenylenediamine and SBR latex were used for analysis. SBR nano-composite was obtained by using the emulsion polymerization method. Results: Mechanical test outcomes demonstrated the improvement in tensile strength, elongation, and tear resistance. Abrasion test results demonstrated that nano aluminum oxide particles could improve the abrasion resistance of SBR matrix because of the good properties of nano aluminum oxide particles. The strengthening capacity of the fillers resulted in noteworthy upgrades in the properties of polymer framework at extremely low filler loadings when contrasted with conventional fillers. In this work, we concentrate on Raman spectroscopy and mechanical properties by including filler content within a low loading amount. The collection idea of the combined rubber nano-composite was built up by using scanning electron microscopy (SEM). The impact of nanoparticles in the polymer network has been assessed for the SBR-nano aluminum oxide from the TEM investigation. Thermogravimetric analysis (TGA and DTA) was also examined. Ozone resistance was studied to elucidate periodic observations of the surface of samples, which were made for crack initiation. The samples were exposed for a longer time. Flame resistance was studied to measure the ease of extinction of a flame and four ratings were possible, depending upon the burning time and the presence of flaming drips. Conclusion: The present study highlights the emulsion polymerization method, where the environmental resistance performance of rubber nano-composites is found to be improved and the thermal and mechanical properties are also enhanced.

Improvement of microstructure and mechanical properties of dissimilar friction stir welded aluminum/titanium joints via aluminum oxide nanopowder

Vacuum ◽  
2021 ◽  
Vol 188 ◽  
pp. 110216
Author(s):  
Taher A. Shehabeldeen ◽  
Nagi M. El-Shafai ◽  
Ibrahim M. El-Mehasseb ◽  
Yajun Yin ◽  
Xiaoyuan Ji ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aluminum Oxide ◽  
Friction Stir ◽  
Microstructure And Mechanical Properties

Effect of Temperature on the Structure and Mechanical Properties of Mechanically Alloyed Al-Nio Composite

2014 ◽  
Vol 59 (1) ◽  
pp. 121-126
Author(s):  
M. Zygmunt-Kiper ◽  
L. Blaz ◽  
M. Sugamata
Keyword(s):  
Mechanical Properties ◽  
Aluminum Oxide ◽  
Aluminum Matrix ◽  
Hot Extrusion ◽  
Effect Of Temperature ◽  
Compression Tests ◽  
Mechanically Alloyed ◽  
Structure Morphology ◽  
High Purity Aluminum ◽  
Extrusion Method

Abstract Mechanical alloying of high-purity aluminum and 10 wt.% NiO powders combined with powder vacuum compression and following hot extrusion method was used to produce an Al-NiO composite. Mechanical properties of as-extruded materials as well as the samples annealed at 823 K /6 h, were tested by compression at 293 K - 770 K. High mechanical properties of the material were attributed to the highly refined structure of the samples. It was found that the structure morphology was practically not changed during hot-compression tests. Therefore, the effect of deformation temperature on the hardness of as-deformed samples was very limited. The annealing of samples at 823 K/6 h induced a chemical reaction between NiO-particles and surrounding aluminum matrix. As a result, the development of very fine aluminum oxide and Al3Ni grains was observed.

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