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Pearlite is a two-phased, lamellar (or layered) structure composed of alternating layers of ferrite (87.5 wt%) and cementite (12.5 wt%) that occurs in some steels and cast irons. During slow cooling of an iron-carbon alloy, pearlite forms by a eutectoid reaction as austenite cools below 723 °C (1,333 °F) (the eutectoid temperature).
The growth in commercial use of paper towels can be attributed to the migration from folded towels (in public bathrooms, for example) to roll towel dispensers, which reduces the amount of paper towels used by each patron. [12] Within the forest products industry, paper towels are a major part of the "tissue market", second only to toilet paper ...
In materials science, lamellar structures or microstructures are composed of fine, alternating layers of different materials in the form of lamellae. They are often observed in cases where a phase transition front moves quickly, leaving behind two solid products, as in rapid cooling of eutectic (such as solder) or eutectoid (such as pearlite ...
The Difference Between Dish Towels And Kitchen Towels. Kitchen towels and dish towels may be used interchangeably, though there is an important distinction. Each serves different purposes in the ...
Tissue paper sheet. Tissue paper, or simply tissue, is a lightweight paper or light crêpe paper.Tissue can be made from recycled paper pulp on a paper machine.. Tissue paper is very versatile, and different kinds are made to best serve these purposes, which are hygienic tissue paper, facial tissues, paper towels, as packing material, among other (sometimes creative) uses.
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When austenite is cooled extremely slowly, it will form large ferrite crystals filled with spherical inclusions of cementite. This microstructure is referred to as "sphereoidite". If cooled a little faster, then coarse pearlite will form. Even faster, and fine pearlite will form.
A cloth towel dispenser or continuous cloth towel is a towel manipulated by a series of rollers, used as an alternative to paper towels and hand dryers in public washrooms. These may have a lower environmental impact than paper towels, [8] though concerns over hygiene mean they are not used by some organisations [9] and have greatly declined in ...