pearlite

[pur-lahyt]
noun
1.
Metallurgy. a microscopic lamellar structure found in iron or steel, composed of alternating layers of ferrite and cementite.
2.
Petrography, perlite.

Origin:
1885–90; pearl1 + -ite1

pearlitic [pur-lit-ik] , adjective
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World English Dictionary
pearlite (ˈpɜːlaɪt)
 
n
1.  the lamellar structure in carbon steels and some cast irons that consists of alternate plates of pure iron and iron carbide
2.  a variant spelling of perlite
 
pearlitic
 
adj

perlite or pearlite (ˈpɜːlaɪt)
 
n
a variety of obsidian consisting of masses of small pearly globules: used as a filler, insulator, and soil conditioner
 
[C19: from French, from perlepearl1]
 
pearlite or pearlite
 
n
 
[C19: from French, from perlepearl1]
 
perlitic or pearlite
 
adj
 
pearlitic or pearlite
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
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Example sentences
In addition, grain size and pearlite influences on tensile properties are discussed.
The microstructure of each heat consists of ferrite grains with intergranular pearlite.
The annulus is evacuated and filled with pearlite insulation.
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