Quality Assessment of Palm Products upon Prolonged Heat Treatment

TiO2 and F-TiO2 powders were prepared by hydrolysis of titanium tetraisopropoxide with reversed mixing of different hydrolytic reagents. The typeof the hydrolytic agentstronglyinfluences particle size, morphology and phase composition ofpowder.It was found, that the amount of injected water is significantly affects on BET surface area and particle size ofbare TiO2.The presence offluorinemakes the samplemore porous and preventsanatase to rutile phase transformation under prolonged heat treatment, also particle formed are bigger in comparison with un-doped TiO2.

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Prolonged heat treatment of Bi-Sr-Ca-Cu-O superconducting ceramics

Ferroelectrics ◽

10.1080/00150199208223441 ◽

1992 ◽

Vol 131 (1) ◽

pp. 369-370

Author(s):

M. Kalnberga ◽

I. Popova ◽

A. Sternberg ◽

A. Gajevskis

Keyword(s):

Heat Treatment ◽

Superconducting Ceramics ◽

Prolonged Heat ◽

Prolonged Heat Treatment

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Cation Assisted Lattice Improvement of Highly Siliceous ZSM-5 upon Prolonged Heat Treatment

Chemistry Letters ◽

10.1246/cl.1986.1523 ◽

1986 ◽

Vol 15 (9) ◽

pp. 1523-1526 ◽

Cited By ~ 4

Author(s):

Bettina Kraushaar ◽

Jan W. de Haan ◽

Leo J. M. van de Ven ◽

Jan H. C. van Hooff

Keyword(s):

Heat Treatment ◽

Prolonged Heat ◽

Prolonged Heat Treatment

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Researches in the field of composite HCBS and of the refractory materials on their base in the Al2O3‒SiO2‒SiC system. Part 2

NOVYE OGNEUPORY (NEW REFRACTORIES) ◽

10.17073/1683-4518-2018-5-22-27 ◽

2018 ◽

pp. 22-27 ◽

Cited By ~ 1

Author(s):

Yu. E. Pivinskii ◽

P. V. Dyakin

Keyword(s):

Heat Treatment ◽

Refractory Materials ◽

Bend Strength ◽

Oxidation Degree ◽

Dispersion Degree ◽

System Part ◽

Prolonged Heat ◽

Prolonged Heat Treatment

The influence was investigated of the prolonged heat treatment on the samples properties prepared on base of the composite Al2O3‒SiO2‒SiC HCBS. The dispersion degree of the samples containing either 10 or 30 % of SiC varied within 3‒200 microns. The estimating method was proposed for the SiC oxidation degree in the composite. Depending on the samples composition the oxidation degree was within 50‒100 %. The ultimate bend strength and compressing strength SiC-containing samples attained the values of 80 and 390 MPa respectively. `````````````````````````````

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A radioactive mineral from Mozambique related to davidite

Mineralogical Magazine and Journal of the Mineralogical Society ◽

10.1180/minmag.1950.029.209.02 ◽

1950 ◽

Vol 29 (209) ◽

pp. 101-112 ◽

Cited By ~ 7

Author(s):

F. A. Bannister ◽

J. E. T. Horne

Keyword(s):

Heat Treatment ◽

Chemical Composition ◽

Chemical Analysis ◽

British Museum ◽

Crystalline Material ◽

X Ray ◽

Radioactive Mineral ◽

Southern Rhodesia ◽

Prolonged Heat ◽

Prolonged Heat Treatment

Early in 1947 a black, opaque, radioactive mineral resembling samarskite in appearance was discovered at Mavnzi in the Tete distrier of Mozambique, Portuguese East Africa. Two small specimens, one a rough twinned crystal with trigonal symmetry (fig. 3), were sent by h. M. Macgregor; then Director of the Geological Survey of Southern Rhodesia, to the British Museum (Natural History) for investigation, and a chemical analysis by E. Golding (table I, no. 2) followed later in the same year. X-ray photographs of fragments and powder from both specimens were taken, but revealed on development no diffraction spots, lines, or haloes. Only after prolonged heat-treatment could powder lines characteristic of crystalline material be obtained. The metamict nature of the mineral before heat-treatment is not unexpected in view of its chemical composition, optical isotropy, and glassy fracture.

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Effect of prolonged heat treatment from 48°C to 63°C on toughness, cooking loss and color of pork

Meat Science ◽

10.1016/j.meatsci.2010.12.035 ◽

2011 ◽

Vol 88 (2) ◽

pp. 280-285 ◽

Cited By ~ 55

Author(s):

Line Christensen ◽

Per Ertbjerg ◽

Margit Dall Aaslyng ◽

Mette Christensen

Keyword(s):

Heat Treatment ◽

Cooking Loss ◽

Prolonged Heat ◽

Prolonged Heat Treatment

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PROLONGED HEAT TREATMENT FOR THE CONDUCTIVITY OF ALUMINUM-MAGNESIUM CERAMICS

Science Review ◽

10.31435/rsglobal_sr/30062020/7139 ◽

2020 ◽

pp. 21-23

Author(s):

Андрух Сергій Леонідович ◽

Галушка Сергій Анатолійович

Keyword(s):

Heat Treatment ◽

Electrical Conductivity ◽

High Temperature ◽

Oxide Ceramics ◽

Conductive Materials ◽

Additional Processing ◽

Technical Properties ◽

Prolonged Heat ◽

Prolonged Heat Treatment

In their work they tried to reveal the use of oxide ceramics for high- temperature insulation and conductive materials. The effect of prolonged temperature on its electrical conductivity was studied. The table shows the physical and technical properties of ceramics after additional processing at a temperature of 1700°С.

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Heat-induced reversible hexagonal packing of spindle microtubules.

The Journal of Cell Biology ◽

10.1083/jcb.74.3.717 ◽

1977 ◽

Vol 74 (3) ◽

pp. 717-725 ◽

Cited By ~ 28

Author(s):

C Rieder ◽

A S Bajer

Keyword(s):

Heat Treatment ◽

Great Majority ◽

Taricha Granulosa ◽

Hexagonal Packing ◽

Differential Stability ◽

Spindle Microtubules ◽

Prolonged Heat ◽

The Individual ◽

Prolonged Heat Treatment ◽

Cells Cultured

Epithelial cells cultured from the lung of the Northwest rough-skinned newt (Taricha granulosa granulosa) were subjected to brief (10-15 min) elevated temperature shocks of 33 degrees-36 degrees C during metaphase. Electron microscope studies on these cells reveal that the spindle microtubules (Mts) are differentially stable to heat treatment. The great majority of nonkinetochore Mts are destroyed within the first few minutes of the shock while kinetochore and adjacent Mts rearrange to form hexagonal closely packed structures before disassembling, the latter occurring only after prolonged heat treatment. The significance and theoretical implications of the formation of hexagonal closely packed Mt structures and of the differential stability of spindle Mts to heating are discussed. The data suggest the existence of one or more heat-sensitive structural component(s) which maintain the individual minimum spacing seen between spindle Mts. To our knowledge, this is the first reported instance of the experimental rearrangement of kinetochore Mts into reversible, hexagonal closely packed bundles.

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Alteration of Microstructure of West Valley Glass by Heat Treatment

MRS Proceedings ◽

10.1557/proc-176-393 ◽

1989 ◽

Vol 176 ◽

Cited By ~ 4

Author(s):

A. C. Buechele ◽

X. Feng ◽

H. Gu ◽

I. L. Pegg

Keyword(s):

Heat Treatment ◽

Noble Metals ◽

Isothermal Heat Treatment ◽

X Ray ◽

Nucleation Sites ◽

Heat Treated ◽

Phosphate Phase ◽

Prolonged Heat ◽

Prolonged Heat Treatment ◽

Glass Compositions

Samples of West Valley reference glass WVCM-59 were subjected to isothermal heat treatment according to a systematic schedule of time-temperature combinations. Phases crystallizing during heat treatment were analyzed and quantified using an SEM equipped with an energy dispersive x-ray detector and image processing and analyzing capabilities. Only small amounts of noble metals (e.g. Rh, Pd) and RuO2 were present in the as-melted glass, but these frequently serve as nucleation sites during heat treatment. Iron-group spinels containing Fe, Ni, Cr, and Mn in variable proportions were the most common phases observed, appearing in quantities up to 3.5 vol% in heat treated glass. The formation of a thoria-ceria phase occurred at temperatures of 900°C and below. Acmites formed at temperatures of 800°C and below. A lithium phosphate phase with a particularly interesting morphology developed after prolonged heat treatment at temperatures between 600–750°C. The same phase appeared in a range of glass compositions. However, canister cooling curves preclude such a phase in production glass. Furthermore, no such phase was found in actual canister-cooled glass.

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