Results 31 to 40 of about 85,785 (257)

Effects of dipping time in coloring liquids and surface finishing technique on the color of monolithic zirconia

open access: yesActa Odontologica Turcica, 2023
Objective: The objective of this study was to investigate the effects of liquid coloring in different dipping times and finishing procedures on color difference of precolored and liquid-colored monolithic zirconia ceramics.
Ceyda Başak İnal   +2 more
doaj   +1 more source

Zirconium Oxide and Iron Zirconate Obtained from Citrus Pectin and Nitrates Applied in the Photo-fenton-like Process

open access: yesOrbital: The Electronic Journal of Chemistry, 2018
This paper describes the synthesis and characterization of zirconium oxide (ZrO2) and of the mixed oxide of iron (iron zirconate), obtained by gelification (80 °C) and calcination (600 °C) of citrus pectin and inorganic nitrates.
Cristiane Antoniazzi   +2 more
doaj   +1 more source

Changing the properties of diffusion-hardening solders hardened with titanium, zirconium, and hafnium powders

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2023
This article presents the results of a study of the properties of three diffusion-hardening solders based on low-melting gallium alloys and copper-tin alloy powder after the introduction of inert metal powders of titanium, zirconium, and hafnium in an ...
V.М. Skachkov   +3 more
doaj   +1 more source

CHARACTERISTIC OF Zr-BEARING CRYSTALLINE PHASES FROM Rb-BEARING MODEL MATRIX MATERIALS [PDF]

open access: yesМинералогия, 2023
As part of the synthesis of new matrix materials for vitrification of highly active radioactive wastes, the crystalline phases formed during rapid cooling from melts of the Na2O–Rb2O–SrO(Ba)–B2O3– SiO2–Al2O3–ZrO2 system with a high Rb and Zr content (up ...
V.E. Eremyashev   +3 more
doaj   +1 more source

Yeniden simantasyonun CAD/CAM zirkonya kuronların kısa titanyum ve zirkonya abutmentler üzerine tutunmasına etkisi

open access: yesActa Odontologica Turcica, 2020
Amaç: Bu çalışmanın amacı yeniden simantasyon işleminin bir self adeziv rezin siman ile kısa titanyum ve zirkonya dayanaklara yapıştırılan zirkonya kopinglerin tutuculuğuna etkilerinin karşılaştırmalı olarak değerlendirilmesidir.
Nurullah Türker   +1 more
doaj   +1 more source

Mechanical Behavior of Repaired Monolithic Crowns: A 3D Finite Element Analysis

open access: yesDentistry Journal, 2023
This study evaluated the mechanical behavior and risk of failure of three CAD-CAM crowns repaired with different resin composites through a three-dimensional (3D) finite element analysis.
Pablo Machado Soares   +8 more
doaj   +1 more source

Effect of Zr on Microstructure and Mechanical Properties of the Al–Cu–Yb and Al–Cu–Gd Alloys

open access: yesMetals, 2022
The effect of zirconium on the microstructure, phase composition, and mechanical properties of AlCuYb and AlCuGd alloys was studied. The microstructure of the as-cast alloys did not consist of new intermetallic phases of zirconium with other elements, so
Olga I. Mamzurina   +6 more
doaj   +1 more source

Separation of Zirconium and Hafnium from Chloride Solution Using Strongly Basic Anion Resins [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2022
The ion exchange process was employed to separate zirconium from hafnium in solution. To this end, four effective parameters, involving resin type, HCl concentration, Time, and initial zirconium concentration, were selected as the main variables.
Meysam Nemati   +3 more
doaj   +1 more source

Functional Bimetal/Carbon Composites Co/Zr@AC for Pesticide Atrazine Removal from Water

open access: yesMolecules, 2023
Atrazine is a toxic and refractory herbicide that poses threats to human health and the ecological environment. In order to efficiently remove atrazine from water, a novel material, Co/Zr@AC, was developed.
Danxia Liu   +7 more
doaj   +1 more source

Behavior and Impact of Zirconium in the Soil–Plant System: Plant Uptake and Phytotoxicity [PDF]

open access: yes, 2012
Because of the large number of sites they pollute, toxic metals that contaminate terrestrial ecosystems are increasingly of environmental and sanitary concern (Uzu et al. 2010, 2011; Shahid et al. 2011a, b, 2012a).
Emmanuel Ferrand   +7 more
core   +1 more source

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