Results 51 to 60 of about 243,823 (237)

An O(h6) cubic spline interpolating procedure for harmonic functions [PDF]

open access: yes, 1989
An O(h6) method for the interpolation of harmonic functions in rectangular do- mains is described and analysed. The method is based on an earlier cubic spline tech- nique [7], and makes use of recent results concerning the a posteriori correction of ...
Soares, M J, Papamichael, N
core   +6 more sources

Osseointegration of zirconia implants : an SEM observation of the bone-implant interface [PDF]

open access: yes, 2008
Background The successful use of zirconia ceramics in orthopedic surgery led to a demand for dental zirconium-based implant systems. Because of its excellent biomechanical characteristics, biocompatibility, and bright tooth-like color, zirconia ...
Lammers, Lydia   +19 more
core   +1 more source

Microstructure and mechanical properties of atomic layer deposited alumina doped zirconia

open access: yesAIP Advances, 2021
Atomic layer deposited alumina doped zirconia films can exhibit advanced mechanical properties with potential to increase the suitability of ZrO2 films for mechanically resilient coatings.
Helle-Mai Piirsoo   +5 more
doaj   +1 more source

Influence Ytrio Percentage On Monolithic Zirconia Properties: Literature Review

open access: yesRevista Naval de Odontologia On Line, 2022
The main disadvantage of conventional zirconia is its high opacity. Depending on different conditions, especially the content of the yttrium stabilizer, it is possible to circumvent this issue, in view of this, several generations of yttrium stabilized ...
Brenda Barros Magalhães Motta   +3 more
doaj   +1 more source

Effect of Aging on the Microstructure and Optical Properties of Translucent ZrO 2 Ceramics

open access: yesActa Stomatologica Croatica, 2021
Objectives: The development and placement of translucent zirconia ceramics on the dental materials market is in full swing. This research aimed to investigate how aging protocols affect the microstructure, color parameters and translucency of a new ...
Korina Mešić   +2 more
doaj  

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

open access: yesAdvanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn   +5 more
wiley   +1 more source

Comparative study of physical properties of zirconia based dental ceramics [PDF]

open access: yes, 2009
The aim of this project was to evaluate and compare the mechanical properties of commercial yttria partially stabilized tetragonal zirconia polycrystalline (Y-TZP) ceramics, which have generated interest in restorative dentistry because of their high ...
Pittayachawan, P, Pittayachawan, P.
core  

Influence of magnesium oxide and hydroxide on phase stabilization and densification of zirconia

open access: yesOpen Ceramics
A systematic comparison between MgO and Mg(OH)₂ as dopant precursors for zirconia stabilization was performed. Zirconia ceramics with 3, 6, and 12 mol.% of stabilizer were prepared by solid-state processing: MgO-doped samples were sintered at 1600°C in a
V.H. Patraca-Ventura   +7 more
doaj   +1 more source

Cubic Zirconia: An Update

open access: yesGems & Gemology, 1981
Soon after i t was first marketed in 1976, colorless cubic zirconia became the dominant diamond imitation, with current production of approximately 60 million carats per year. Although cubic zirconia was discovered as a natural mineral in 1937, crystals usable for faceting were first produced ill 1969 and it was not until a practical sltull-melting ...
openaire   +1 more source

Effect of Cu and CuP Additions on the Microstructure and Nanoindentation‐Based Fracture Behavior of CoNiAlSi Ferromagnetic Shape Memory Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
Cu and combined Cu–P microalloying refine the microstructure and enhance the nanoindentation‐derived fracture resistance of CoNiAlSi ferromagnetic shape memory alloys without suppressing the martensitic transformation. Comparative SEM, DSC, and nanoindentation results reveal that the CuP‐containing alloy provides the most balanced response, achieving ...
Mehmet Demir
wiley   +1 more source

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