Results 51 to 60 of about 2,147 (208)

Electron Beam Induced Phase Transformations from Metakaolinite to Mullite

open access: yesMicroscopy and Microanalysis, 1999
Abstract The kaolinite-mullite reaction series by heating has been controversial since the proposal of a new transformation mechanism. Recently energy-filtered electron diffraction data obtained from the specimen furnace-heated at 920 °C indicated that the spinel-type phase coexisted topotactically with metakaolinite.
Y J Kim, S Lee
openaire   +1 more source

Efficient Heterogeneous Fenton‐Like Decolorization of Cationic Dyes by a Magnetic Guar Gum/Kaolin/Fe3O4 Composite

open access: yesWater Environment Research, Volume 98, Issue 4, April 2026.
A novel, eco‐friendly magnetic composite (GG‐mKao) was synthesized from guar gum, kaolin, and Fe3O4 and used as a heterogeneous Fenton‐like catalyst for efficient decolorization of methyl violet 2B, showing high activity, reusability, and low iron leaching.
Serap Fındık
wiley   +1 more source

A comparative study on the use of zeolite-like materials in the removal of heavy metals and ammonium from wastewaters

open access: yesProspectiva, 2020
Synthetic (metakaolinite-based Lynde Type A zeolite) and natural (clinoptilolite-rich rhyolite tuft) zeolites were used as heavy metal and ammonium sorbents from artificially polluted solutions.
CARLOS RIOS   +2 more
doaj   +1 more source

Processing–Property Mapping of Flash‐Sintered Wall Tile Bodies

open access: yesInternational Journal of Applied Ceramic Technology, Volume 23, Issue 2, April 2026.
ABSTRACT This study investigates the effects of furnace temperature (900°C and 945°C), applied electric field (50–200 V.cm−1), and current density (50–150 mA.mm−2) on the physical properties and microstructure of flash‐sintered wall tile bodies. Water absorption, bulk density, and open porosity were measured and compared with an industrially fired ...
Zeynep Çetinkaya   +4 more
wiley   +1 more source

Chemical and Mineralogical Characterizations of Different Kaolinitic Clays from Burkina Faso: Feasibility for the Synthesis of Geopolymer Binders

open access: yesGeosciences
Researchers are exploring eco-friendly alternatives to Portland cement, such as geopolymers, which require reactive aluminosilicate sources. This study evaluated the reactivity of six calcined clays (heated at 700 °C) in the presence of an alkaline ...
Seick Omar Sore   +5 more
doaj   +1 more source

Shrinkage and mechanical performance of geopolymeric mortars based on calcined Tunisian clay [PDF]

open access: yes, 2013
"Special Issue for International Congress on Materials & Structural Stability, Rabat, Morocco, 27-30 November 2013"Infrastructure rehabilitation represents a multitrillion dollar opportunity for the construction industry.
Aguiar, J. L. Barroso de   +5 more
core   +1 more source

Characterization of silver-kaolinite (AgK): an adsorbent for long-lived 129I species [PDF]

open access: yes, 2016
Bentonite is a preferred buffer and backfill material for deep geological disposal of high-level nuclear waste (HLW). Bentonite does not retain anions by virtue of its negatively charged basal surface.
Rao, Sudhakar M.   +1 more
core   +1 more source

Effect of NaOH Concentration and Curing Temperature on Geopolymers Incorporating Oyster Shell and Glass Waste

open access: yesInternational Journal of Polymer Science, Volume 2026, Issue 1, 2026.
This study investigates the influence of NaOH concentration, curing temperature, oyster shell powder (PC) and glass powder (PV) on the physical and mechanical properties of geopolymer cements based on calcined clay, aiming to enhance the performance of construction materials in Douala.
Giresse Ulrich Defo Tatchum   +6 more
wiley   +1 more source

Nucleation kinetics of crystalline phases from a kaolinitic body used in the processing of red ceramics [PDF]

open access: yes, 2011
The crystallization kinetics of red ceramic raw material from the western part of São Paulo State, Brazil, was examined by differential thermal analysis (DTA) and X-ray diffraction (XRD).
Rincón López, Jesús María   +5 more
core   +1 more source

Understanding of alkali–silica reaction in lime‐pozzolana mortar incorporating pumice and borosilicate

open access: yesJournal of the American Ceramic Society, Volume 108, Issue 12, December 2025.
Abstract To assess the efficacy of lime‐calcined clay binder in mitigating alkali–silica reaction (ASR) deterioration, this study identifies potential reaction product formation mechanisms in 2‐year‐old alkaline solution‐exposed mortar bars using X‐ray diffraction, micro‐computed tomography, scanning electron microscopy, and evaluates their influence ...
Adhora Tahsin   +3 more
wiley   +1 more source

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