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Tuesday, November 24, 2020 | History

2 edition of Analysis of a cordierite (MAS) recuperator from a molybdenum heat -treating furnace found in the catalog.

Analysis of a cordierite (MAS) recuperator from a molybdenum heat -treating furnace

G. W Weber

Analysis of a cordierite (MAS) recuperator from a molybdenum heat -treating furnace

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Published by Dept. of Energy, [Office of Energy Technology], Oak Ridge National Laboratory, for sale by the National Technical Information Service in Oak Ridge, Tenn, Springfield, Va .
Written in English

    Subjects:
  • Heat exchangers,
  • Cordierite

  • Edition Notes

    StatementG. C. Weber and V. J. Tennery
    SeriesORNL/TM ; 6794
    ContributionsTennery, Victor Joseph, 1932- joint author, Oak Ridge National Laboratory, United States. Dept. of Energy. Division of Industrial Energy Conservation
    The Physical Object
    Paginationiii, 44 p. :
    Number of Pages44
    ID Numbers
    Open LibraryOL14881834M


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Analysis of a cordierite (MAS) recuperator from a molybdenum heat -treating furnace by G. W Weber Download PDF EPUB FB2

Cordierite (Mg;Fe2+)2Al4Si5O18 °c Mineral Data Publishing, version Crystal Data: Orthorhombic, pseudohexagonal. Point Group: 2=m 2=m 2=m: Crystals short prismatic, striated k [], to 18 cm; typically granular to compact, massive.

Get this from a library. Analysis of a cordierite (MAS) recuperator from a molybdenum heat -treating furnace.

[G W Weber; Victor Joseph Tennery; Oak Ridge National Laboratory.; United States. Department of Energy.

Division of Industrial Energy Conservation.]. Cordierite, discovered more than two centuries ago, is a naturally occurring mineral compound containing magnesium, iron, aluminum, and silicon. It’s found, among other places, near veins of tin in the mines of Southern England.

The present paper in the series describes an analysis of the crystal structure of low cordierite A (cf. Gibbs et aI., ) I the second paper will describe similar analyses of "intermediate Analysis of a cordierite book (A: ) and "high cordierite" (cf.

Meagher and Gibbs, ) and the third and final. Results and discussion XRD Analysis the formation of cordierite-mullite and other crystalline phases in samples sintered at different temperatures through °C and submitted to heating-quenching cycles were analyzed by XRD analyses.

The results are summarized in Table 2. Annual Book of ASTM StandardWest Conshohocken Cited by: 1. The other two forms are much less common and can be prepared only under special conditions. μ-Cordierite, found by Rankin and Merwin, forms metastably by crystallization of glass in air below During the course of a broader investigation on the cordierite‐spodumene join in the system Li 2 O–MgO–Al 2 O 3 –SiO 2, a clearer picture of the relationships between the various reported polymorphs of cordierite has been forms of cordierite have been recognized.*α‐Cordierite is the stable high‐temperature form commonly found in nature and in ceramic bodies.

Cordierite samples from pegmatites and metamorphic rocks have been analysed for major [electron microprobe analysis (EMPA)] and trace elements [inductively coupled plasma mass. Cordierite Stones. This category falls under ceramic stones, but certain aspects have been strengthened.

Cordierite is a non-absorbent and lead-free material. The durability and longevity of this mineral are some of its key features. If you are planning on buying a pizza making tool, there are several factors you must consider. Cordierite is a high volume through-put via low cost extrusion or dye-pressing processes.

It is used in electrical insulation domain, high performance resistors, burner tubes, and of course exhaust catalysts supports and filters. Cordierite ceramic honeycomb based catalytic converters.

cordierite phase and cordierite can exist in thermal equilibrium with mullite phase. Commercially available cordierite and mullite powders were used by M.A.

Camerucci and [2] to obtain cordierite-mullite composite materials with mullite content up to 65 wt.%.

The cordierite. cordierite will be obtained at a relatively high temperature. Microstructure analysis of cordierite powders Figure 3 shows the SEM images of cordierite powders (sintered at oC for 3 h/ball-milled for 36 h) without and with the process that the xerogels were ball-milled for 36 h.

Iolite (Cordierite) Properties and Meaning. Iolite (Cordierite) is a member of the Silicates family. It comes in both massive and crystalline form, with color ranging from blue to g old. This mineral is readily available. Read more about Iolite healing properties information and view the photo galleries below.

Cordierite Properties This is mainly a structural ceramic, often used for kiln furniture due to its extremely good thermal shock resistance. Like other structural ceramic materials, it also has good thermal and electrical insulating capabilities.

Properties. Units. Test. Value. Physical. Chemical FormulaMgO-2Al 2 O SiO 2. Density, r. A commercially available cordierite (CORCR Baikowski, France) was used as the starting powder. Its mean particle size (D 50 = μm) and specific surface area BET (S S = m 2 /g) were measured using a Coulter LS analyzer with Dolapix PC33 as deflocculant and a Monosorb Quantachrome equipment, impurity level determined by wet chemical analysis was.

What is Cordierite. Cordierite is a silicate mineral that is found in metamorphic and igneous is typically blue to violet in color and is one of the most strongly pleochroic minerals.

Cordierite has a chemical composition of (Mg,Fe) 2 Al 4 Si 5 O 18 and forms a solid solution series with sekaninaite, which has a chemical composition of (Fe,Mg) 2 Al 4 Si 5 O XRD Analysis The formation of cordierite-mullite and other crystalline phases in samples sintered at different temperatures through — C ° and submit-ted to heating-quenching cycles were analyzed by XRD analyses.

The results are summarized in. A cordierite powder was synthesized from a batch composition of talc, diatomite and alumina. Sintered samples of the synthesized cordierite were characterized by X-ray diffraction (XRD), differential thermal analysis (DTA), and Rietveld analysis.

The XRD analysis showed hexagonal or a-cordierite (indialite) as a major phase along with MgAl 2O. ‘The presence of detrital cordierite in soil feet up-slope from the outcrop suggests that the deposit may have a minimum strike length of feet.’ ‘Magnetite, because of its magnetism, and cordierite, because of its dichroism, were used in ancient times for navigational purposes.’.

Cordierite Crystallography: Axial Ratios: a:b:c = Cell Dimensions: a =b =c =Z = 4; V = 1, Den(Calc)= Cordierite - (Mg,Fe) 2 [Si 5 Al 4 O 18]* nH 2 O Cordierite, which was discovered inis named after the French geologist Louis Cordier, who first studied this species.

Cordierite is always present as a solid solution between Mg-rich cordierite (Mg,Fe) 2 Al 3 (Si 5 AlO 18) and Fe-rich sekaninaite (Fe,Mg) 2 Al 3 (Si 5 AlO 18).Cordierite structure is it is characterized by hexagonal rings of. Cordierite Often used as a structural ceramic for kiln furniture applications, it also finds uses in other applications where rapid temperature changes take place.

The dense version of cordierite can be easily pressed to make technical components while the porous version offers superior thermal shock properties and therefore finds uses in. Cordierite definition: a grey or violet-blue dichroic mineral that consists of magnesium aluminium iron silicate | Meaning, pronunciation, translations and examples.

Cordierite or iolite is a magnesium iron aluminium is almost always present and a solid solution exists between Mg-rich cordierite and Fe-rich sekaninaite with a series formula: (Mg,Fe) 2 Al 3 (Si 5 Al O 18) to (Fe,Mg) 2 Al 3 (Si 5 Al O 18).

A high-temperature polymorph exists, indialite, which is isostructural with beryl and has a random distribution of Al in the (Si,Al) 6. The structure, crystal chemistry, and microstructure of disordered and ordered Mg-cordierites synthesized in a bismuth oxide flux system have been studied by a combination of x-ray and neutron powder diffraction and quantitative x-ray microanalysis using analytical electron microscopy.

Microchemical data obtained on Bi-flux cordierites using energy-dispersive x-ray analysis is interpreted. Cordierite makes the ceramic manufacture of products like catalytic converters possible. They constantly heat up and cool down quickly and must not crack because of the shock.

These converters get their thermal shock resistance properties from a bonded matrix of low-expansion cordierite crystals. Cordierite definition is - a blue mineral of vitreous luster and strong dichroism that consists of a silicate of aluminum, iron, and magnesium.

The analysis of cordierite major- and trace-element and volatile compositions has the potential to link pressure–temperature conditions, magma volatile contents, and components that contributed to the cordierite formation (Harley, ; Anderson, ; Thompson et al., b; Rigby & Droop, ).

Correctly interpreting the origin of garnet. Cordierite, blue silicate mineral that occurs as crystals or grains in igneous rocks. It typically occurs in thermally altered clay-rich sediments surrounding igneous intrusions and in schists and paragneisses.

Precambrian deposits of the Laramie Range, Wyo., U.S., contain more thantons of. COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus.

Cordierite Ceramics Market size will witness a substantial growth owing to its increase in demand from different applications in furniture, construction, electrical, automotive and coating industry. These have excellent thermal shock resistance that enhances its consumption in kilns and furnaces.

It improves resistance towards temperature variation. Pressnall, J. Fitzpatrick, Paul Predecki, High Temperature Guinier X-Ray Diffractometry for Thermal Expansion Measurements in the Hexagonal form of Cordierite ((2MgO•2Al 2 O 3 •5SiO 2), Advances in X-ray Analysis, /S, 27, (), ().

1 day ago  Urea-Selective Catalytic Reduction (SCR) is widely used to reduce nitrogen oxide (NOx) emissions. This paper presents a comprehensive experimental research work on aftertreatment emissions of NOx and ammonia (NH3) slip for three aftertreatment concepts by introducing the SCR sizing strategy on a 6-cylinder mid-range non-exhaust gas recirculation (EGR) diesel engine to meet.

Cordierite definition, a strongly dichroic blue mineral consisting of a silicate of magnesium, aluminum, and iron: common in metamorphic rocks. See more. Examples of how to use “cordierite” in a sentence from the Cambridge Dictionary Labs.

X-ray powder diffraction analysis indicates a high degree of Al/Si ordering in the orthorhombic polymorph, the Miyashiro distortion index is ~ Estimations of site occupancies based on the determined tetrahedral volumes result in the following values for hexagonal Fe-cordierite: ~73 % Al for T 1 and ~28 % Al for T 2.

For the first time. DPFs (Diesel Particulate Filters) have been a primary technology utilized to purify diesel PM emissions. One of the major challenges of the DPF is to reduce pressure drop caused by PM and ash paper reports on the definition and investigative results of.

cordierite clay Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application.

Material: The Culinary Expertise Cordierite Pizza Stone is made from high-quality mineral cordierite, which is an actual combines the high-temperature resistance of a baking steel and the heat retention capability of a ceramic stone.

It can stand up to F degrees with ease. Analysis of the results has been applied to the development of several new cordierite diesel particulate filters that possess a unique combination of high filtrationmore» Furthermore, catalyst systems have been developed that result in a minimal pressure drop increase of the catalyzed filter.

Relaxdays Round Cooking, 33 cm Diameter, Made of Cordierite with Metal Handles for Crunchy Stone Oven-Baked Pizzas, Breads and More, in Oven & Grill, Beige, 33 .Cordierite is a magnesium aluminum silicate which possesses an extremely low thermal expansion and low thermal conductivity.

Cordierite is used when thermal shock is a concern in the finished product. Cordierite is available in self- glazing form where higher strength, thermal shock, and dielectric strength is required. Applications include refractory shapes, welding tapes, heaters.Cordierit je minerál ze skupiny cyklosilikátů bohatý na hliník, který tvoří hojný horninový minerál.

Pojmenován podle francouzského geologa P. Louise Cordiera (), který ho objevil v roce