Cementation

Definitions

  • Cementation furnace
    Cementation furnace
  • Webster's Revised Unabridged Dictionary
    • Cementation (Chem) A process which consists in surrounding a solid body with the powder of other substances, and heating the whole to a degree not sufficient to cause fusion, the physical properties of the body being changed by chemical combination with powder; thus iron becomes steel by cementation with charcoal, and green glass becomes porcelain by cementation with sand.
    • Cementation The act or process of cementing.
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Century Dictionary and Cyclopedia
  • Interesting fact: Putty is a cement compound of fine powdered chalk or oxide of lead mixed with linseed oil.
    • n cementation The act of cementing; the act of uniting by an adhesive substance.
    • n cementation A metallurgical process in which two substances are heated in contact for the purpose of effecting some important chemical change in one of them. Iron may be carburized or decarburized by cementation. Thus, bar-iron, embedded in charcoal-powder and exposed to a temperature above redness, is gradually converted into steel, and in this way steel was formerly made in large quantity. This is carburization by cementation. Again, if cast-iron be embedded in the powder of red hematite and kept for some time at a red heat, it is decarburized, and acquires a considerable degree of malleability. This is the method in use for producing what is known as malleable cast-iron. Malleable iron is also converted into steel by keeping it immersed in molten pig-iron. This is a very ancient process, and is a kind of cementation. Silver is also separated from gold by cementation with salt and with potassium nitrate. These last methods of separation of the two precious metals are also very ancient, but are now nearly obsolete. See case-hardening.
    • n cementation In petrography, the cementing of fragments or grains of a porous or incoherent rock by infiltration and deposition of mineral matter from solution. The commonest cementing-materials are carbonates, silica (usually as quartz), and silicates.
    • n cementation The solid fixation to extraneous objects by the substance of the shell or test, as in the entire class of corals and sporadically in the Brachiopoda, Pelecypoda, Vermes, etc. Cementation is the cause of, or is followed by, symmetrical growth accompanied by a high development of loose cellular calcareous tissue. Brachiopods and pelecypods thus attached assume an obconical form and often present the aspect and structure of a coral, as they bear similar relations to the surrounding medium.
    • n cementation In botany, the growing together of the hyphæ of fungi. Same as concrescence, 4.
    • n cementation A process in which two solid substances in contact, upon being heated, pass into and penetrate one another without melting.
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Chambers's Twentieth Century Dictionary
  • Interesting fact: The Aztec Indians in Central America used animal blood mixed with cement as a mortar for their buildings, many of which still remain standing today.
    • n Cementation the act of cementing: the process by which iron is turned into steel, glass into porcelain, &c.—done by surrounding them with a cement or powder and exposing them to heat
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Quotations

  • Mary Baker Eddy
    Mary%20Baker%20Eddy
    “Chastity is the cement of civilization and progress. Without it there is no stability in society, and without it one cannot attain the Science of Life.”
  • Woodrow T. Wilson
    Woodrow%20T.%20Wilson
    “Friendship is the only cement that will ever hold the world together.”

Etymology

Chambers's Twentieth Century Dictionary
O. Fr. ciment—L. cæmentum, chip of stone used to fill up in building a wall, cædimentumcædĕre, to cut.

Usage

In literature:

Jim tossed his megaphone to the cement engineer and ran to meet the men.
"Still Jim" by Honoré Willsie Morrow
But one divine cement.
"The Young Maiden" by A. B. (Artemas Bowers) Muzzey
Nature joins and cements friends together with inseparable love.
"The Best of the World's Classics, Restricted to Prose, Vol. VII (of X)--Continental Europe I" by Various
After a picture was painted upon it, another piece of adamant was cemented over it.
"Mizora: A Prophecy" by Mary E. Bradley
Of late years large numbers of "concrete" or "cement" houses have been built.
"Diggers in the Earth" by Eva March Tappan
The bottom part of the pipes now will have a hub to receive the cement.
"Elements of Plumbing" by Samuel Dibble
It was because he made use of the cementing Laws of the Memory.
"Assimilative Memory" by Marcus Dwight Larrowe (AKA Prof. A. Loisette)
If slate is employed, the joints should be carefully and effectually cemented.
"Woodward's Graperies and Horticultural Buildings" by George E. Woodward
While in the bicycle business we had become well acquainted with the use of hard tire cement for fastening tires on the rims.
"The Early History of the Airplane" by Orville Wright
He stood alone on the cement terrace before the garage.
"The Innocents" by Sinclair Lewis
Your brother mightn't like weighing cement in the hot mixing sheds or dragging a measuring chain about in the sun.
"Brandon of the Engineers" by Harold Bindloss
CEMENT AND STUCCO HOUSES.
"Bird Houses Boys Can Build" by Albert F. Siepert
And if all goes well, I want a bank-barn, the same as they have in the East, with cement flooring and modern stalling.
"The Prairie Mother" by Arthur Stringer
Judge Van Dorn's face was set in a cement of resistance.
"In the Heart of a Fool" by William Allen White
For this purpose, he employs a double glass syphon 19, 20, 21, 22, 23, firmly cemented at 19 and 23.
"Elements of Chemistry," by Antoine Lavoisier
Crowds overflowed the paths into the roadway and seemed to cement together the traffic.
"Bindle" by Herbert Jenkins
Cement must be fortified, or else have air-spaces.
"Woman's Club Work and Programs" by Caroline French Benton
With the growth of engineering in the early part of the 19th century arose a great demand for hydraulic cement.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6" by Various
He had but reluctantly left Rawsley and his beloved cement works to superintend his ever growing London business.
"A Bed of Roses" by W. L. George
Horses' hoofs rattled frighteningly loud on the cement.
"The Year When Stardust Fell" by Raymond F. Jones
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In poetry:

Fell unaided! though cemented
By the faith o' friendship's laws;--
Fell unpity'd -- unlamented!
Bluiding in a thankless cause!
"The Waes O' War : Or The Upshot Of The History O' Will And Jean. In Four Parts" by Hector MacNeill
As if cemented in an oven,
In the strange substance of a dream,
A pot of poisoned food, the region
Of Daghestan there slowly steamed.
"Here will be echoes in the mountains..." by Boris Pasternak
And when quarrels arose—as one frequently finds
Quarrels will, spite of every endeavor—
The song of the Jubjub recurred to their minds,
And cemented their friendship for ever!
"The Hunting Of The Snark " by Lewis Carroll
See how she moves in zigzag line,
And draws along her silken twine,
Too soft for touch, for sight too fine,
Nicely cementing:
And makes her polished drapery shine,
The edge indenting.
"The Spider And The Fly" by Patrick Branwell Bronte
Everything ends, the tower ending and,
(Have with the house of wind), the leaning scene,
Ball of the foot depending from the sun,
(Give, summer, over), the cemented skin,
The actions' end.
"When, Like A Running Grave" by Dylan Thomas
This is th' essential fellowship, the tie,
Which all true Christians are united by:
No other union does them any good,
But that which Christ cemented with his blood,
As God and Man; that having lost it, men
Might live in unity with God again.
"On Church Communion - Part III." by John Byrom

In news:

A pair of dusty chalkboards, donated by the Chilton County Board of Education years ago, are still cemented to the walls of Gussie Saxon 's garage.
Strong iron ore, cement and coal shipments boosted volume nearly 6.8 percent year-over-year on the St Lawrence Seaway in August.
The fear is that a divided or weak interim government will not be able to withstand the intense and at times conflicting ethnic and religious pressures that have tended to divide Iraq instead of cementing it together.
Israel, which has a population of almost 8 million, has long sought to cement its hold on the West Bank, captured from Jordan in the 1967 Mideast war, by having masses of Jewish settlers live there.
(FORTUNE Magazine) – HOLLYWOOD honors its stars by casting their footprints in cement.
The Portland Cement Company of Oregon makes these tiles from a proprietary concrete which they then cast in a hexagon mold.
A grassroots rally may have helped save green cement policies.
Thailand's Siam Cement Eyes Indonesia, Vietnam For Growth.
Siam Cement, Siam City Cement, Tata, Thoresen.
Revision of C989 - 10 Standard Specification for Slag Cement for Use in Concrete and Mortars.
The intent of this revision is to add a non-mandatory note to identify the availability of a prepackaged reference portland cement for conducting the slag -activity tests in accordance with ASTM C989.
Revision of C989 - 09a Standard Specification for Slag Cement for Use in Concrete and Mortars.
Addition of a non mandatory mill test report to assist in providing uniformity for reporting the results of tests performed on slag cements.
Actually, it's those connections that should cement ABBA 's place in the Rock Hall.
The new solution that will take dentists to the next level of dental restorations is RelyX Ultimate Adhesive Resin Cement and Lava Ultimate CAD/CAM Restorative.
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In science:

They arrived as 12-cm wide by 17.5-cm long “ribbons.” Each ribbon came as a self-contained structure with the individual 0.5-mm fibers held adjacent by a coating of a polyurethane-acrylic blend cement.
A Tungsten / Scintillating Fiber Electromagnetic Calorimeter Prototype for a High-Rate Muon g-2 Experiment
The Atmospheric Dispersion Correcting prisms are comprised of two sets of of Risley prisms, each one formed by two wedges of BaF2 and CaF2 , the tips of which have been cemented together (e.g.
A New High Contrast Imaging Program at Palomar Observatory
Wynne 1996, 1997). A cylinder has been cored out of each cemented wedge pair and mounted into a motorized, rotating mount.
A New High Contrast Imaging Program at Palomar Observatory
Elster, The Cement of Society: A Study of Social Order (Cambridge University Press, Cambridge, 1989). C.
Fundamental and Real-World Challenges in Economics
Success builds upon success, and the next stride into the 8 TeV SUSY search collision data could cement 2012 as a truly historic year for particle physics.
Testing No-Scale F-SU(5): A 125 GeV Higgs Boson and SUSY at the 8 TeV LHC
Figure 3. design, meridional ray intercept curves and rms spot sizes for (a) plano-convex lens, (b) cemented doublet lens, (c) four lens system.
Testing and design of a lens system for atom trapping and fluorescence detection
It was the advent of modern infrared and millimeter-wave technology in the latter half of the twentieth century that cemented the relation between Dark Clouds and the formation of stars and planetary systems.
Cold Dark Clouds: The Initial Conditions for Star Formation
Poromechanical behaviour of hardened cement paste under isotropic loading.
Evaluation of a permeability-porosity relationship in a low permeability creeping material using a single transient test
The effect of undrained heating on a hardened cement paste.
Evaluation of a permeability-porosity relationship in a low permeability creeping material using a single transient test
Gas permeability measurements of cement-based materials under hydrostatic test conditions using a low-transient method.
Evaluation of a permeability-porosity relationship in a low permeability creeping material using a single transient test
Modelling of permeability in cement-based materials: Part 1Uncracked medium.
Evaluation of a permeability-porosity relationship in a low permeability creeping material using a single transient test
The proposed method was applied to the results of isotropic compression and undrained heating tests performed on Rothbach sandstone (Ghabezloo and Sulem 2009, 2010) and on a hardened cement paste (Ghabezloo et al., 2009). The proposed correction method is presented briefly in this paper.
Experimental artefacts in undrained triaxial testing
The 2 polarizers are identical, they are designed as Glan-Thompson prisms: made of two right-angled Calcite prisms cemented together2 .
Design of the wavefront sensor unit of ARGOS, the LBT laser guide star system
The Calcite crystals composing the two halves of the prims are aligned parallel to the cement plane and perpendicular to the plane of reflection.
Design of the wavefront sensor unit of ARGOS, the LBT laser guide star system
Repeated shearing of such fractures can keep flow paths open that would otherwise be closed by mineral cementation, enhancing rock permeability.
Reference Design Project Book: NUSEL-Homestake
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