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A eutectic system or eutectic mixture (/ j uː ˈ t ɛ k t ɪ k / yoo-TEK-tik) [1] is a type of a homogeneous mixture that has a melting point lower than those of the constituents. [2] The lowest possible melting point over all of the mixing ratios of the constituents is called the eutectic temperature .
A deeper eutectic or more rapid cooling will result in finer lamellae; as the size of an individual lamellum approaches zero, the system will instead retain its high-temperature structure. Two common cases of this include cooling a liquid to form an amorphous solid , and cooling eutectoid austenite to form martensite .
Page from Codex Sinaiticus with text of Matthew 6:4–32 Alexandrinus – Table of κεφάλαια (table of contents) to the Gospel of Mark. The great uncial codices or four great uncials are the only remaining uncial codices that contain (or originally contained) the entire text of the Bible (Old and New Testament) in Greek.
It shows a eutectic and a eutectoid; these phases crystallise as a stacking of fine strips of pure phases (iron and cementite) in case of the eutectoid, or a pure iron containing small balls of cementite for the eutectic. Although it is heterogeneous, these phases behave like homogeneous pure bodies.
Iron allotropes, showing the differences in structure. The alpha iron (α-Fe) is a body-centered cubic (BCC) and the gamma iron (γ-Fe) is a face-centered cubic (FCC). At atmospheric pressure , three allotropic forms of iron exist, depending on temperature: alpha iron (α-Fe, ferrite) , gamma iron (γ-Fe, austenite) , and delta iron (δ-Fe) .
Eutectic bonding, also referred to as eutectic soldering, describes a wafer bonding technique with an intermediate metal layer that can produce a eutectic system. Those eutectic metals are alloys that transform directly from solid to liquid state, or vice versa from liquid to solid state, at a specific composition and temperature without ...
Walters said he wanted to distribute a Bible "free from commentary," with the intent to put the text of "a historical document and its usage in American history" into students' hands.
Qere and Ketiv (from the Aramaic qere or q're, קְרֵי , "[what is] read"; ketiv, or ketib, kethib, kethibh, kethiv, כְּתִיב , "[what is] written") refers to a system for marking differences between what is written in the consonantal text of the Hebrew Bible, as preserved by scribal tradition, and what is read.