GB1243569A - Manufacturing articles from a mixture of powdered silicon carbide and boron carbide - Google Patents

Manufacturing articles from a mixture of powdered silicon carbide and boron carbide

Info

Publication number
GB1243569A
GB1243569A GB6033769A GB6033769A GB1243569A GB 1243569 A GB1243569 A GB 1243569A GB 6033769 A GB6033769 A GB 6033769A GB 6033769 A GB6033769 A GB 6033769A GB 1243569 A GB1243569 A GB 1243569A
Authority
GB
United Kingdom
Prior art keywords
mould
sic
cross
mixture
hot
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
GB6033769A
Inventor
Mikhail Andreevich Varzanov
Irina Vladimirovna Dombrova
Ariadna Alexeevna Kalinina
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.)
VNII ABRAZIVOV
Original Assignee
VNII ABRAZIVOV
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 VNII ABRAZIVOV filed Critical VNII ABRAZIVOV
Priority to GB6033769A priority Critical patent/GB1243569A/en
Publication of GB1243569A publication Critical patent/GB1243569A/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
    • C04B35/56—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 carbides or oxycarbides
    • C04B35/563—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 carbides or oxycarbides based on boron carbide
    • 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
    • C04B35/56—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 carbides or oxycarbides
    • C04B35/565—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 carbides or oxycarbides based on silicon carbide
    • C04B35/575—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 carbides or oxycarbides based on silicon carbide obtained by pressure sintering
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C04B35/645—Pressure sintering

Landscapes

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

Abstract

1,243,569. Hot pressing SiC -B 4 C mixtures. VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTITUT ABRAZIVOV I. SHLIFOVANIA. Dec. 10, 1969, No. 60337/69. Heading C7D. SiC-B 4 C mixtures are hot pressed in a graphite mould by resistance heating according to the following formula: where Sc = cross-sectional area of moulded powder mixture (cm<SP>2</SP> ) S = cross-sectional area of the mould wall (cm<SP>2</SP>) p = specific electrical resistance (Ohm cm) of mould. The resistance heated graphite mould may also be placed inside a resistance heated graphite tube so as to conform with the formula: where S 1 and S 2 are the cross-sectional areas of the mould wall and heater wall respectively. A powder mixture of 85% SiC and 15% B 4 C was mixed with glycerine and optionally 1À5% silicic acid and hot-pressed to form rods, rings, bushes and nozzles.
GB6033769A 1969-12-10 1969-12-10 Manufacturing articles from a mixture of powdered silicon carbide and boron carbide Expired GB1243569A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB6033769A GB1243569A (en) 1969-12-10 1969-12-10 Manufacturing articles from a mixture of powdered silicon carbide and boron carbide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6033769A GB1243569A (en) 1969-12-10 1969-12-10 Manufacturing articles from a mixture of powdered silicon carbide and boron carbide

Publications (1)

Publication Number Publication Date
GB1243569A true GB1243569A (en) 1971-08-18

Family

ID=10485453

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6033769A Expired GB1243569A (en) 1969-12-10 1969-12-10 Manufacturing articles from a mixture of powdered silicon carbide and boron carbide

Country Status (1)

Country Link
GB (1) GB1243569A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111606712A (en) * 2020-06-12 2020-09-01 中南大学 Method for preparing boron carbide ceramic by low-temperature pulse pressurization

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111606712A (en) * 2020-06-12 2020-09-01 中南大学 Method for preparing boron carbide ceramic by low-temperature pulse pressurization

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