Preliminary Identification of Silantek Clay as Potential Refractory

2016 ◽  
Vol 840 ◽  
pp. 124-130
Author(s):  
Hazman Seli ◽  
Japri Bujang ◽  
Zainal Arifin Ahmad
Keyword(s):  
Thermal Resistance ◽  
Raw Materials ◽  
The Other ◽  
Structural Ceramics ◽  
Preliminary Identification ◽  
Mineral Phases ◽  
Clay Deposits ◽  
High Thermal Resistance

Silantek clay deposits were characterized and evaluated for their potential as structutral ceramic products raw materials through chemical, mineralogical and refractory (1250 to 1600o C) properties determinations. Results show that the main oxides in the samples were SiO2 and Al2O3, whereas the other oxides present only in small quantity. Kaolinite(Al2Si2O5(OH)4) and quartz(SiO2) present as dominant mineral phases and the minor phases of mullite(Al6Si2O13) and zeolite(Na2Al2Si3O10·2H2O) also appeared in the samples. From the results of the refractoriness tests up to 1600°C, samples ST11, ST23A, ST31A, ST31B, ST33 have potential for refractory products as they demonstrated high thermal resistance properties(over 1600°C). Silantek clay potential to be used as raw materials mainly for refractory, structural ceramics and other common ceramic products

Preliminary Evaluation of Mukah Clay Deposits

2012 ◽  
Vol 620 ◽  
pp. 458-463 ◽  
Author(s):  
Hazman Seli ◽  
Japri Bujang ◽  
Zainal Arifin Ahmad
Keyword(s):  
Physical Properties ◽  
Firing Temperature ◽  
Raw Materials ◽  
The Other ◽  
Preliminary Evaluation ◽  
Structural Ceramics ◽  
Significant Development ◽  
Mineral Phases ◽  
Clay Deposits ◽  
Floor Tiles

Mukah clay deposits are characterized and evaluated for their potential as industrial raw materials through chemical, mineralogical and fired body (900 to 1250o C) physical properties determinations. Results show that the main oxides in the samples are SiO2 and Al2O3, whereas the other oxides present only in small quantity. Kaolinite and quartz present as dominant mineral phases and the minor phases of muscovite, nacrite, illite also appeared in the samples. From the results of the fired properties, the significant development of densification of ceramic behaviour can be noticed at the firing temperature above 1000°C. Mukah clay demonstrated that it is most suitable to be used as raw materials for making pottery, general refractory, structural ceramics, wall and floor tiles.

Features of Phasea Mineralogical Conversions when Burning Wall Ceramics on the Basis of Secondary Materials for Processing Coal Deposits of Eastern Donbass

2019 ◽  
Vol 974 ◽  
pp. 67-74
Author(s):  
Kh.S. Yavruyan ◽  
E.S. Gaishun ◽  
V.D. Kotlyar ◽  
A.S. Okhotnaya
Keyword(s):  
Low Temperature ◽  
Firing Temperature ◽  
High Performance ◽  
Raw Materials ◽  
Raw Material ◽  
Structural Ceramics ◽  
Ceramic Tiles ◽  
Mineral Phases ◽  
Coal Deposits ◽  
Secondary Materials

The paper presents the results of the studies on the phase conversions taking place during the firing of the refuse piles processing sieve residue in the Eastern Donbass, which are the promising raw materials for the production of various types of structural ceramics – common, lining and clinker bricks, high-performance ceramic stones, ceramic tiles and siding. It is established that the sieve residue is the raw material of the low-temperature baking. Depending on the degree of grinding, the raw material may belong to the group of mid-baking or high-baking raw materials. The sieve residues have a rather narrow baking interval - no more than 50 °C, which is possible to expand by increasing the content of fine fractions during the preparation of sieve residue. The main mineral phases at the firing temperature of 1000-1100 оС are quartz, feldspar, ferrous silicates and aluminum silicates (fayalite, hypersten, etc.), hematite. The features of the phase and mineralogical conversions allow us to recommend to fire products on the basis of sieve residue at temperatures of 1000 °C and higher.

Study of Effect of Higher Temperature on the Properties of a New Silicate-Based Thermal Insulation Material

2013 ◽  
Vol 409-410 ◽  
pp. 584-588
Author(s):  
Lenka Mészárosová ◽  
Rostislav Drochytka ◽  
Eva Tůmová
Keyword(s):  
Thermal Resistance ◽  
Raw Materials ◽  
Building Envelope ◽  
Production Costs ◽  
Insulation Material ◽  
Porous Concrete ◽  
New Material ◽  
High Thermal Resistance ◽  
Higher Temperature ◽  
Selection Of

This article studies the possibilities of using lightweight porous concrete, which is intended for insulation of thermally intensive equipment and the effect of its use under specific circumstances on the change of the building envelope thermal resistance. The material should combine benefits of the porous and foamed concretes produced so far (low bulk density, high thermal resistance, low production costs) with higher thermal resistance. The benefit of the new material is its ability to also perform at higher temperatures due to the selection of suitable raw materials.

scholarly journals The Critical Raw Materials Issue between Scarcity, Supply Risk, and Unique Properties

Materials ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 1826
Author(s):  
Mihaela Girtan ◽  
Antje Wittenberg ◽  
Maria Luisa Grilli ◽  
Daniel P. S. de Oliveira ◽  
Chiara Giosuè ◽  
...  
Keyword(s):  
Scientific Community ◽  
Chemical Elements ◽  
Raw Materials ◽  
The Other ◽  
Innovation Networks ◽  
Supply Risk ◽  
European Cooperation ◽  
Research And Innovation ◽  
The Earth ◽  
Critical Raw Materials

This editorial reports on a thorough analysis of the abundance and scarcity distribution of chemical elements and the minerals they form in the Earth, Sun, and Universe in connection with their number of neutrons and binding energy per nucleon. On one hand, understanding the elements’ formation and their specific properties related to their electronic and nucleonic structure may lead to understanding whether future solutions to replace certain elements or materials for specific technical applications are realistic. On the other hand, finding solutions to the critical availability of some of these elements is an urgent need. Even the analysis of the availability of scarce minerals from European Union sources leads to the suggestion that a wide-ranging approach is essential. These two fundamental assumptions represent also the logical approach that led the European Commission to ask for a multi-disciplinary effort from the scientific community to tackle the challenge of Critical Raw Materials. This editorial is also the story of one of the first fulcrum around which a wide network of material scientists gathered thanks to the support of the funding organization for research and innovation networks, COST (European Cooperation in Science and Technology).

scholarly journals Effect of Fly Ash on Compressive Strength, Drying Shrinkage, and Carbonation Depth of Mortar with Ferronickel-Slag Powder

2021 ◽  
Vol 11 (3) ◽  
pp. 1037
Author(s):  
Se-Jin Choi ◽  
Ji-Hwan Kim ◽  
Sung-Ho Bae ◽  
Tae-Gue Oh
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Construction Industry ◽  
Bituminous Coal ◽  
Raw Materials ◽  
Drying Shrinkage ◽  
The Other ◽  
Test Results ◽  
Slag Powder ◽  
Ferronickel Slag

In recent years, efforts to reduce greenhouse gas emissions have continued worldwide. In the construction industry, a large amount of CO2 is generated during the production of Portland cement, and various studies are being conducted to reduce the amount of cement and enable the use of cement substitutes. Ferronickel slag is a by-product generated by melting materials such as nickel ore and bituminous coal, which are used as raw materials to produce ferronickel at high temperatures. In this study, we investigated the fluidity, microhydration heat, compressive strength, drying shrinkage, and carbonation characteristics of a ternary cement mortar including ferronickel-slag powder and fly ash. According to the test results, the microhydration heat of the FA20FN00 sample was slightly higher than that of the FA00FN20 sample. The 28-day compressive strength of the FA20FN00 mix was approximately 39.6 MPa, which was higher than that of the other samples, whereas the compressive strength of the FA05FN15 mix including 15% of ferronickel-slag powder was approximately 11.6% lower than that of the FA20FN00 mix. The drying shrinkage of the FA20FN00 sample without ferronickel-slag powder was the highest after 56 days, whereas the FA00FN20 sample without fly ash showed the lowest shrinkage compared to the other mixes.

New uses for brick-making clay materials from the Bailén area (southern Spain)

Clay Minerals ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 453-465 ◽  
Author(s):  
I. Gonzalez ◽  
E. Galan ◽  
A. Miras ◽  
P. Aparicio
Keyword(s):  
Particle Size ◽  
Iron Oxides ◽  
Raw Materials ◽  
The Other ◽  
Southern Spain ◽  
Other Hand ◽  
Floor Tiles ◽  
Potential Applications ◽  
Clay Materials

AbstractAn attempt has been made to assess new potential applications for the Bailén clays, traditionally used for manufacturing bricks, based on mineralogical, chemical, particle size, plasticity and firing results. Raw materials and mixtures used by the local factory were selected and tested with the addition of some diatomite, feldspar or kaolin. Based on their properties, clay materials from Bailén might be suitable for making porous red wall tiles, clinker, vitrified red floor tiles and porous light-coloured wall tiles by pressing; the first could be manufactured from the raw materials and mixtures currently used by the local manufactures. On the other hand, stoneware shaped by extrusion, such as perforated bricks, facing bricks and roofing tiles, can be also manufactured from the mixtures used at the factory if they contain 20-25% carbonate and small amounts of iron oxides; lightweight bricks require black and yellow clays with diatomite.

Breathable properties ofm-Aramid nanofibrous membrane with high thermal resistance

2014 ◽  
Vol 132 (8) ◽  
pp. n/a-n/a ◽  
Author(s):  
Young Shin Park ◽  
Jong Wha Lee ◽  
Young Sik Nam ◽  
Won Ho Park
Keyword(s):  
Thermal Resistance ◽  
Nanofibrous Membrane ◽  
High Thermal Resistance

Tunes That Bind: Paul J. Seelig, Eva Gauthier, Charles T. Griffes, and the Javanese Other

2009 ◽  
Vol 3 (2) ◽  
pp. 129-154
Author(s):  
HENRY SPILLER
Keyword(s):  
Identity Formation ◽  
North American ◽  
Raw Materials ◽  
Sense Of Self ◽  
The Other ◽  
Edward Said ◽  
Complex Relationship ◽  
East Indies ◽  
Dutch East Indies

AbstractThe powerful concept of orientalism has undergone considerable refinement since Edward Said popularized the term with his eponymous book in 1978. Orientalism typically is presented as a totalizing process that creates polar oppositions between a dominating West and a subordinate East. U.S. orientalisms, however, reflect uniquely North American approaches to identity formation that include assimilating characteristics usually associated with the Other. This article explores the complex relationship among three individuals—U.S. composer Charles T. Griffes, Canadian singer Eva Gauthier, and German-trained Dutch East Indies composer Paul J. Seelig—and how they exploited the same Javanese songs to lend legitimacy to their individual artistic projects. A comparison of Griffes's and Seelig's settings of a West Javanese tune (“Kinanti”) provides an especially clear example of how contrasting approaches manifest different orientalisms. Whereas Griffes accompanied the melody with stock orientalist gestures to express his own fascination with the exotic, Seelig used chromatic harmonies and a chorale-like texture to ground the melody in the familiar, translating rather than representing its Otherness. The tunes that bind Griffes, Gauthier, and Seelig are only the raw materials from which they created their own unique orientalisms, each with its own sense of self and its own Javanese others.

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