For the development of matt-transparent glass–ceramic coating applied on the porcelain tile, the CaO–Al2O3–SiO2 system was studied. Sinterization and devitrification behavior of granulated frits and viscosity change with temperature were analyzed by combining the data that belong to different...

Electrical conductivity measurements of synthetic anorthite were carried out as a function of pressure and temperature by a Solartron-1260 Impedance/Gain phase analyzer in a multi-anvil apparatus. The impedance spectroscopy was performed in a frequency range from 10–1 Hz to 106 Hz. The sample w...

The research aims to fabricate a porcelain with high strength and transmittance by adding a small amount of anorthite chamotte. The chamotte used in the research was compounded by quartz, calcite and alumina. The porcelain with best overall performance in the research has high flexural strength ...

Silicate glasses show widely varying changes in their longitudinal sound velocities below 10 GPa. These changes are often attributed to structural changes in the glass (or liquid) network. This study reports both sound velocities and structural analysis of CaAl2Si2O8 (anorthite) glass in situ up...

Fluid fly ash could be considered a waste, but, when well treated, it may also become a useful secondary source material. Its rather high content of calcium-containing phases along with thermally treated alumino-silicate residues resulting from coal combustion can lead to the formation of a stab...

The designed cordierite/anorthite batch compositions were studied to gain the favorable properties of both materials where, cordierite has low thermal expansion coffecient and high strength than anorthite.Low cost starting materials such as sugar beat filter cake and talc carbonate were used in ...

In the present work anorthite-TCP composite ceramics was produced for the first time by the solid-state sintering process involving the mixture of local natural materials of phosphate and kaolin. Various samples were prepared by varying the kaolin content from 47 to 57 wt%. The composite ceramic...

The formation kinetics and mechanism of tricalcium aluminate hydrate and calcium oxalate in dilute sodium aluminate solution and sodium oxalate solution were studied respectively based on the lime causticization, and the optimal conditions for removing the oxalate in dilute sodium aluminate solu...

There exist active adsorption sites in the spodumene leach residue (SLR), the solid waste of spodumene after high-temperature roasting and leaching. It is potential for SLR to selectively adsorb Li+ from brine because of the “memory effect”. Lithium ion adsorption isotherm and adsorption rate ...

The flotation separation of spodumene from feldspar was investigated using a new type of mixed anionic/cationic collector, sodium oleate/tributyl tetradecyl phosphonium chloride (NaOL/TTPC). Microflotation experiments, fluorescence spectroscopy measurements, microcalorimetric analysis, and Fouri...

The H2SO4 roasting for the lithium extraction from β-spodumene concentrate has been the traditional process since the middle of the twentieth century (Ellestad and Leute, 1950) and is the preferred one for new producers due to its economic viability and high purity product to supply the growing...

The selective flotation separation of spodumene from other aluminosilicate minerals remains a challenging problem in flotation chemistry, and the surface chemistry features are of fundamental importance. In this study, the interfacial chemistry features, particularly the wetting characteristics ...

In our latest study, it was reported that the effective flotation separation of spodumene from feldspar could be achieved using a mixture of the anionic collector, sodium oleate (NaOL) and the cationic collector, dodecylamine hydrochloride (DDA). This study is an extension of the previous work t...

The effects of sodium hydroxide and sodium carbonate on the flotation of spodumene were investigated by flotation tests, XPS and SEM measurments and thermodynamic analysis. A collector YOA (a mixture of 90% oleic acid and 10% dodecyl amine) was used in the flotation. It was found that sodium hyd...

The use of microwave ovens in the acid roasting of spodumene as part of the process for lithium extraction was investigated and compared with conventional furnace heating. The effects of various key process factors were evaluated. Conventional acid roasting of 5 g of β-spodumene at 250 °C for ...

The present work was aimed to synthesize leucite based bioactive glass ceramic composite with required characteristics for dental applications. The leucite glass-ceramic was prepared using mechanochemical synthesis. The microstructural, thermal, mechanical and biological properties of the compos...

An examination of the anelastic response of leucite, KAlSi2O6, to frequency modulated stress is presented. Leucite is a naturally occurring open framework aluminosilicate closely related to analcime (a zeolite compound) and is found in the earth's crust. It shows two phase transitions at (T...

Dental ceramics are radiation sensitive materials and exhibit luminescent properties. Their samples can be potentially used for individual dose assessment in situations where retrospective dosimetry is required. In this work, we investigated dosimetry properties of two leucite glass-based dental...

We have investigated the rheology of liquid and crystal-bearing tephriphonolite magmas from the Colli Albani volcanic district. High (1124–1569 °C) and low (690–800 °C) temperature anhydrous liquid viscosities were determined by a combination of concentric cylinder (101.0 to 103.6 Pa s) and ...

Unit cell data for synthetic samples of I41/a or Ia-3d AAlSi2O6 (A=K,Rb,Tl,Cs) leucite/pollucites are compared to those for feldspar-stoichiometry leucite analogues (Rb,Tl,Cs)0.75□0.25Al0.75Si2.25O6. I41/a solid solutions between KAlSi2O6 and KAlSi3O8 (orthoclase feldspar, Or) and between K(Al0...