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pearlite

珍珠体; 珍珠岩; 珠光体

WordNet (r) 3.0 (2006) (WordNet)

pearlite
n 1: a lamellar mixture of cementite and ferrite formed during
the cooling of austenite; a constituent of steel and cast
iron

The Collaborative International Dictionary of English v.0.48 (gcide)

Pearlite \Pearl"ite\, Pearlstone \Pearl"stone`\, n. (Min.)
A glassy volcanic rock of a grayish color and pearly luster,
often having a spherulitic concretionary structure due to the
curved cracks produced by contraction in cooling. See Illust.
under {Perlitic}.
[1913 Webster]

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Pearlite - Wikipedia
Pearlite is a two-phased, lamellar (or layered) structure composed of alternating layers of ferrite (87 5% by mass) and cementite (12 5% by mass) that occurs in some steels and cast irons
What is Ferrite, Cementite, Pearlite , Martensite, Austenite
Pearlite is the name given to a mixture of about 87 5 percent ferrite and 12 5 percent cementite It consists of alternate layers of ferrite and cementite in steel
What is Perlite? Uses, Benefits Common Alternatives
Ever wondered about those white chunks in your potting mix? It's perlite! Learn what perlite is, its many uses in gardening, and the pros and cons of using it for planting
What is Pearlite - Definition | Material Properties
What is Pearlite – Definition In metallurgy, pearlite is a layered metallic structure of two-phases, which compose of alternating layers of ferrite (87 5 wt%) and cementite (12 5 wt%) that occurs in some steels and cast irons
Perlite - Soil Amendments - The Home Depot
Get free shipping on qualified Perlite Soil Amendments products or Buy Online Pick Up in Store today in the Outdoors Department
Pearlite – Metallurgy
Pearlite is a microstructure occurring in many common grades of steels Steels with pearlitic or near-pearlitic microstructure can be drawn into thin wires Such wires, often bundled into ropes, are commercially used as piano wires, ropes for suspension bridges, and as steel cord for tire reinforcement
Pearlite - an overview | ScienceDirect Topics
Pearlite is defined as a layered structure that consists of alternate layers of ferrite and cementite, which results from the transformation of austenite during slow cooling or annealing This structure provides a favorable combination of strength and ductility, making it suitable for various structural applications AI generated definition based on: Comprehensive Materials Processing (Second
Perlite - Wikipedia
Perlite boulders with fireweed in foreground Perlite softens when it reaches temperatures of 850–900 °C (1,560–1,650 °F) Water trapped in the structure of the material vaporises and escapes, and this causes the expansion of the material to 7–16 times its original volume The expanded material is a brilliant white, due to the reflectivity of the trapped bubbles Unexpanded ("raw
PEARLITE Definition Meaning - Merriam-Webster
The meaning of PEARLITE is the lamellar mixture of ferrite and cementite in slowly cooled iron-carbon alloys occurring normally as a principal constituent of both steel and cast iron
Amazon. com: Pearlite
Discover lightweight, porous perlite to enhance soil structure and plant health indoors and outdoors

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