kamacite sentence in Hindi
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- In hexahedrites, fine parallel lines called Neumann lines are often seen, which are evidence for structural deformation of adjacent kamacite plates due to shock from impacts.
- About 5 % of meteorites that have been seen to fall are iron meteorites composed of iron-nickel alloys, such as kamacite and / or taenite.
- Cliftonite was first considered to be a new form of carbon, then a pseudomorph of graphite after diamond, and finally reassigned to a pseudomorph of graphite after kamacite.
- The increase in nickel content causes taenite to have a face-centered unit cell, whereas kamacite's higher iron content causes its unit cell to be body centered.
- The lines are indicative of a shock-induced deformation of the kamacite crystal, and are thought to be due to impact events on the parent body of the meteorite.
- It occurs in meteorites along the grain boundaries of kamacite or troilite in the form of tiny plates . it occurs associated with kamacite, taenite, daubreelite, troilite and sphalerite.
- It occurs in meteorites along the grain boundaries of kamacite or troilite in the form of tiny plates . it occurs associated with kamacite, taenite, daubreelite, troilite and sphalerite.
- "' Iron meteorites "'are meteorites that consist overwhelmingly of an iron nickel alloy known as meteoric iron that usually consists of two mineral phases : kamacite and taenite.
- In the picture shown, the broad white bars are " kamacite " ( dimensions in the mm-range ), and the thin line-like ribbons are " taenite ".
- The annealing is carried out in two stages : first a mixture of cohenite and kamacite is formed in air at ca . 950 �C; it is then partly converted to cliftonite in vacuum at ca . 550 �C.
- When the meteorite is formed it starts out as entirely molten taenite ( greater than 1500 ?C ) and as it cools past 723 ?C the primary metastable phase of the alloy changes into taenite and kamacite begins to precipitate out.
- A very high specific gravity becomes very pronounced in native metals; kamacite, an iron-nickel alloy common in iron meteorites has a specific gravity of 7.9, and gold has an observed specific gravity between 15 and 19.3.
- For kamacite, the alloy is usually in the proportion of 90 : 10 to 95 : 5, although impurities ( such as cobalt or carbon ) may be present, while for taenite the nickel content is between 20 % and 65 %.
- He took in hand an extensive but ill-organized collection of meteorites in the museum and from his study with electron probe work discovered the Agrell effect , the decrease in the nickel content of kamacite as a boundary with taenite is approached.
- Two examples are kamacite and taenite, which are found in iron meteorites; these species differ by the amount of Ni in the alloy; kamacite has less than 5 7 % nickel and is a variety of native iron, whereas the nickel content of taenite ranges from 7 37 %.
- Two examples are kamacite and taenite, which are found in iron meteorites; these species differ by the amount of Ni in the alloy; kamacite has less than 5 7 % nickel and is a variety of native iron, whereas the nickel content of taenite ranges from 7 37 %.
- The formation of Ni-poor kamacite proceeds by diffusion of Ni in the solid alloy at temperatures between 700 and 450 �C, and can only take place during very slow cooling, about 100 to 10, 000 �C / Myr, with total cooling times of 10 Myr or less.
- "' Neumann lines "', or "'Neumann bands "', are fine patterns of parallel lines seen in cross-sections of many hexahedrite iron meteorites in the kamacite phase, although they may appear also in octahedrites provided the kamacite phase is about 30 micrometres wide.
- "' Neumann lines "', or "'Neumann bands "', are fine patterns of parallel lines seen in cross-sections of many hexahedrite iron meteorites in the kamacite phase, although they may appear also in octahedrites provided the kamacite phase is about 30 micrometres wide.
- The researchers found that the fragments from the crater zone had a chondritic texture and the following mineral composition : pyroxene ( 1 ) 40 %, olivine 20 %, feldspar 10 %, pyroxene ( 2 ) 10 %; kamacite 15 %, troilite 5 %, and traces of chromite and native copper.
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