GB802251A - Improvements in high strength single crystals of iron - Google Patents

Improvements in high strength single crystals of iron

Info

Publication number
GB802251A
GB802251A GB30788/55A GB3078855A GB802251A GB 802251 A GB802251 A GB 802251A GB 30788/55 A GB30788/55 A GB 30788/55A GB 3078855 A GB3078855 A GB 3078855A GB 802251 A GB802251 A GB 802251A
Authority
GB
United Kingdom
Prior art keywords
iron
ammonium chloride
single crystals
crystals
hydrogen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB30788/55A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB802251A publication Critical patent/GB802251A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B33/00—After-treatment of single crystals or homogeneous polycrystalline material with defined structure
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/02—Elements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

Rod-like single crystals of iron are produced by treating iron in a reducing atmosphere in the presence of ammonium chloride to a temperature between 600 DEG C. and 800 DEG C. Iron hydroxide may be precipitated from a solution of ferric chloride by ammonium hydroxide, the supernatent liquid removed, the unwashed cake dried while retaining the ammonium chloride formed by the reaction, and the dry cake heated in an atmosphere of hydrogen. Elongated crystals 10 inches long and 0.001 inch in section are stated to be formed. Iron powder mixed with moistened ammonium chloride may be heated in hydrogen to produce crystals.
GB30788/55A 1954-11-24 1955-10-27 Improvements in high strength single crystals of iron Expired GB802251A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US802251XA 1954-11-24 1954-11-24

Publications (1)

Publication Number Publication Date
GB802251A true GB802251A (en) 1958-10-01

Family

ID=22156031

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30788/55A Expired GB802251A (en) 1954-11-24 1955-10-27 Improvements in high strength single crystals of iron

Country Status (1)

Country Link
GB (1) GB802251A (en)

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