Results 1 to 10 of about 31,506 (216)

Physico-chemical and mechanical properties of geopolymer/zircon composites [PDF]

open access: yesScience of Sintering, 2022
The effect of zircon (ZrSiO4) on the physico-chemical and mechanical properties of geopolymer/zircon composites was examined in this study. Four geopolymer/zircon composites containing 10, 20, 30 and 40 wt.% zircon were prepared from metakaolin ...
Kljajević Ljiljana   +6 more
doaj   +1 more source

Mechanical Alloying Process Applied for Obtaining a New Biodegradable Mg-xZn-Zr-Ca Alloy

open access: yesMetals, 2022
The aim of the present paper is to apply the mechanical alloying process to obtain from powder components a new biodegradable Mg-based alloy powder from the system Mg-xZn-Zr-Ca, with high biomechanical and biochemical performance.
Doina Raducanu   +8 more
doaj   +1 more source

Life cycle assessment comparison between zircon and alumina sand applied to ceramic tiles

open access: yesCleaner Engineering and Technology, 2022
The goal of the study is to assess and compare the use of opacifier (whitener) materials zircon sand and alumina applied in ceramic tiles production. This study provides a comparison using a cradle-to-gate life cycle assessment (LCA) approach, giving an ...
Andrea Morfino   +3 more
doaj   +1 more source

Interpretation of zircon coronae textures from metapelitic granulites of the Ivrea–Verbano Zone, northern Italy: two-stage decomposition of Fe–Ti oxides [PDF]

open access: yesSolid Earth, 2017
In this study, we report the occurrence of zircon coronae textures in metapelitic granulites of the Ivrea–Verbano Zone. Unusual zircon textures are spatially associated with Fe–Ti oxides and occur as (1) vermicular-shaped aggregates 50–200 µm long and
E. Kovaleva   +3 more
doaj   +1 more source

Mineralogical and geochemical characteristics of zircon from diorite porphyry dyke in Sergozerskoe gold occurrence (the Strel'ninsky greenstone belt, Kola region) [PDF]

open access: yesVestnik MGTU, 2016
Mineralogical and geochemical investigation of zircon from diorite porphyry from Sergozerskoe occurrence has been carried out. Study of morphology and inner structure of zircon crystals in back scattered electron rays as well as assaying for content and ...
Kudryashov N. M.   +3 more
doaj   +1 more source

Study on the Morphology of Zircon-bearing Epoxy Resin Surface and Its Effect for LA-ICP-MS Analysis

open access: yesYankuang ceshi, 2020
BACKGROUND Laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) is currently one of the commonly used methods for zircon research. This method generally uses epoxy resin targets as carriers.
HU Zhi-zhong   +4 more
doaj   +1 more source

A Novel Approach to Identifying Mantle‐Equilibrated Zircon by Using Trace Element Chemistry

open access: yesGeochemistry, Geophysics, Geosystems, 2020
One of the requirements for inferring mantle redox states via zircon Ce/Ce* oxybarometry and Ti‐in‐zircon thermometry is to select mantle‐equilibrated zircon derived from melts that have not interacted with the hydrosphere nor assimilated exogenous ...
Ziqin Ni   +3 more
doaj   +1 more source

Raman spectra of impact zircons in the Jarva-varaka layered massif (the Monchegorsk ore region, the Kola Peninsula) [PDF]

open access: yesVestnik MGTU, 2017
Zircon crystals from granophyre norites of the Jarva-varaka massif of the Monchegorsk ore region (the Kola Peninsula) have been studied by means of back-scattered electron (BSE) imaging and Raman spectroscopy.
Kaulina T. V.   +6 more
doaj   +1 more source

Does Zircon Shape Retain Petrogenetic Information?

open access: yesGeochemistry, Geophysics, Geosystems, 2023
Zircon shape is commonly reported during geochronology and geochemistry analyses of igneous, metamorphic, and sedimentary rocks, but the relationship of zircon shape to primary growth environmental conditions remains poorly constrained.
T. Scharf   +4 more
doaj   +1 more source

Improvement of the Thermal Stability of Zircon by Formation of the Solid Solution of Cr in Zircon

open access: yesJournal of Asian Ceramic Societies, 2020
In this paper, the effects of Cr2O3 additive on the thermal stability and zircon decomposition were investigated. The substitution of Cr at zircon lattice and the formation of solid solution were also discussed. Cr2O3 was added at up to 4 wt.% to zircon.
Hudsa Majidian   +2 more
doaj   +1 more source

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