2007-01-12 05:20:40 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
-Alloys, such as:
----Superalloys, for parts in gas turbine aircraft engines. -
----Corrosion- and wear-resistant alloys.
----High speed steels.
-Cemented carbides (also called hard metals) and diamond tools.
-Magnets and magnetic recording media.
---Alnico magnets.
-Catalysts for the petroleum and chemical industries.
-Electroplating because of its appearance, hardness, and resistance to oxidation.
-Drying agents for paints, varnishes, and inks.
-Ground coats for porcelain enamels.
-Pigments (cobalt blue and cobalt green).
-Cobalt blue glass
-Lithium ion battery electrodes.
-Steel-belted radial tires.
-Cobalt-60 has multiple uses as a gamma ray source:
----It is used in radiotherapy.
----It is used in radiation treatment of foods for sterilization (cold pasteurization).
----It is used in industrial radiography to detect structural flaws in metal parts.
Co-60 is useful as a gamma ray source partially because it can be produced - in known quantity, and very large amounts - by simply exposing natural cobalt to neutrons in a reactor for a given time.
-Use in medicine
Cobalt-60 (Co-60 or 60Co) is a radioactive metal that is used in radiotherapy. It produces two gamma rays with energies of 1.17 MeV and 1.33 MeV. The 60Co source is about 2 cm in diameter and as a result produces a geometric penumbra, making the edge of the radiation field fuzzy. The metal has the unfortunate habit of producing a fine dust, causing problems with radiation protection. The 60Co source is useful for about 5 years but even after this point is still very radioactive, and so cobalt machines have fallen from favor in the Western world where linacs are common.
2007-01-12 05:55:49 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Its main use is the manufacturer of magnets
Most of the cobalt produced is used for special alloys. A relatively large percentage of the world's production goes into magnetic alloys such as the Alnicos for permanent magnets. Sizable quantities are utilized for alloys that retain their properties at high temperatures and superalloys that are used near their melting points (where steels would become too soft). Cobalt is also employed for hard-facing alloys, tool steels, low-expansion alloys (for glass-to-metal seals), and constant-modulus (elastic) alloys (for precision hairsprings). Cobalt is the most satisfactory matrix for cemented carbides.
2007-01-12 13:27:56 · answer #2 · answered by christopherthomasandrews 2 · 0⤊ 0⤋
Most of it is used to make superalloys for things like jet turbines. But it is used in a lot of things...magnets, high speed steel, diamond tools and in dying agents for paints and ink.
2007-01-12 13:30:10 · answer #3 · answered by Mr.Robot 5 · 0⤊ 0⤋
Magnets
Machine tooling (metal cutting )
And a few other things
2007-01-12 13:27:51 · answer #4 · answered by ELF_N_MAGIC 3 · 0⤊ 0⤋
also Bateries
2007-01-12 13:29:26 · answer #5 · answered by runlolarun 4 · 0⤊ 0⤋