GB1016303A - Process for the manufacture of zirconium borides - Google Patents

Process for the manufacture of zirconium borides

Info

Publication number
GB1016303A
GB1016303A GB2797563A GB2797563A GB1016303A GB 1016303 A GB1016303 A GB 1016303A GB 2797563 A GB2797563 A GB 2797563A GB 2797563 A GB2797563 A GB 2797563A GB 1016303 A GB1016303 A GB 1016303A
Authority
GB
United Kingdom
Prior art keywords
zirconium
borides
carbon
mixture
boric acid
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
GB2797563A
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.)
Elektroschmelzwerk Kempten GmbH
Original Assignee
Elektroschmelzwerk Kempten GmbH
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 Elektroschmelzwerk Kempten GmbH filed Critical Elektroschmelzwerk Kempten GmbH
Publication of GB1016303A publication Critical patent/GB1016303A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/5805—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides
    • C04B35/58064—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides based on refractory borides
    • C04B35/58078—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides based on refractory borides based on zirconium or hafnium borides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B35/00—Boron; Compounds thereof
    • C01B35/02—Boron; Borides
    • C01B35/04—Metal borides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/75—Products with a concentration gradient

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Products (AREA)
  • Silicon Compounds (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

Zirconium borides (which may contain hafnium) or mixed titanium and zirconium borides are manufactured from zirconium ores that contain silica, if necessary in admixture with titanium oxide, by mixing with boric acid and carbon, forming the mixture if necessary, e.g. with a sieve kneader or granulating plate, and then reacting in an arc or resistance furnace. The boric acid may be used in amount greater than is required stoichiometrically, and the carbon in amount more or less than is required stoichiometrically. When using a resistance furnace, the reaction is carried out between 1700 DEG and 2400 DEG C. Before forming, the mixture may be dried at 150 DEG to 350 DEG C. Reference has been directed by the Comptroller to Specification 911,062.
GB2797563A 1962-07-23 1963-07-15 Process for the manufacture of zirconium borides Expired GB1016303A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE23247A DE1192630B (en) 1962-07-23 1962-07-23 Process for the production of zirconium borides

Publications (1)

Publication Number Publication Date
GB1016303A true GB1016303A (en) 1966-01-12

Family

ID=7071015

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2797563A Expired GB1016303A (en) 1962-07-23 1963-07-15 Process for the manufacture of zirconium borides

Country Status (2)

Country Link
DE (1) DE1192630B (en)
GB (1) GB1016303A (en)

Also Published As

Publication number Publication date
DE1192630B (en) 1965-05-13

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