Results 21 to 30 of about 157,423 (300)

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

Investigations of Zr(IV) in LiF-CaF2: stability with oxide ions and electroreduction pathway on inert and reactive electrodes [PDF]

open access: yes, 2013
In this work, a detailed electrochemical study of the molten LiF-CaF2-ZrF4 system is provided in the 810-920°C temperature range, allowing the determination of the reduction potential, the diffusion coefficient and the reduction mechanism of dissolved Zr(
Cassayre, Laurent   +4 more
core   +4 more sources

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

Ab-initio calculations for structural properties of Zr-Nb alloys [PDF]

open access: yes, 2013
Ab-initio calculations for the structural properties of Zr-Nb alloys at different values of the niobium concentration are done at zero temperature. Different cases for Zr-Nb alloys with unit cells having BCC and HCP structures are considered.
Kharchenko, Dmitrii O.   +1 more
core   +5 more sources

Home - About - Disclaimer - Privacy