GB742324A - Improvements in bodies containing boron nitride - Google Patents

Improvements in bodies containing boron nitride

Info

Publication number
GB742324A
GB742324A GB13836/53A GB1383653A GB742324A GB 742324 A GB742324 A GB 742324A GB 13836/53 A GB13836/53 A GB 13836/53A GB 1383653 A GB1383653 A GB 1383653A GB 742324 A GB742324 A GB 742324A
Authority
GB
United Kingdom
Prior art keywords
boron nitride
product
nitride
silicon
bonded
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
GB13836/53A
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.)
Unifrax 1 LLC
Original Assignee
Carborundum 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 Carborundum Co filed Critical Carborundum Co
Publication of GB742324A publication Critical patent/GB742324A/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
    • C04B35/583—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 boron nitride

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

A refractory composition comprises boron nitride bonded by silicon nitride and/or aluminium nitride. Silicon carbide can also be present. Boron nitride is mixed with silicon and/or aluminium and possibly a temporary binder, shaped and fired in a non-oxidizing nitrogenous atmosphere. The product can be crushed to give granules which can subsequently be bonded by sintered metals, ceramic or vitreous bonds. The product can be made more porous by including pore formers, e.g. substances which can be burnt out or which generate a gas. Abrasive articles can be made from the product The preferred silicon nitride is that obtained according to Specification 742,326, [Group III].
GB13836/53A 1952-05-17 1953-05-18 Improvements in bodies containing boron nitride Expired GB742324A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US742324XA 1952-05-17 1952-05-17

Publications (1)

Publication Number Publication Date
GB742324A true GB742324A (en) 1955-12-21

Family

ID=22118461

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13836/53A Expired GB742324A (en) 1952-05-17 1953-05-18 Improvements in bodies containing boron nitride

Country Status (1)

Country Link
GB (1) GB742324A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1227372B (en) * 1962-05-14 1966-10-20 Aluminum Co Of America Glazed refractory composition
DE1471035B1 (en) * 1959-05-06 1970-01-02 Carborundum Co Process for the production of a refractory molded article
GB2048927A (en) * 1979-03-19 1980-12-17 De Beers Ind Diamond Abrasive compacts
EP0353542A1 (en) * 1988-07-21 1990-02-07 Elektroschmelzwerk Kempten GmbH Pressure-sintered polycrystalline composites based on hexagonal boron nitride, oxides and carbides
GB2256434A (en) * 1991-06-04 1992-12-09 Rolls Royce Plc Abrasive medium
US5389587A (en) * 1988-11-10 1995-02-14 Kabushiki Kaisha Kouransha BN-group ceramics having excellent resistance to loss by dissolving
DE102012104049A1 (en) * 2012-05-09 2013-11-28 Esk Ceramics Gmbh & Co. Kg Boron nitride agglomerates, process for their preparation and their use

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1471035B1 (en) * 1959-05-06 1970-01-02 Carborundum Co Process for the production of a refractory molded article
DE1227372B (en) * 1962-05-14 1966-10-20 Aluminum Co Of America Glazed refractory composition
GB2048927A (en) * 1979-03-19 1980-12-17 De Beers Ind Diamond Abrasive compacts
US4666466A (en) * 1979-03-19 1987-05-19 Wilson William I Abrasive compacts
EP0353542A1 (en) * 1988-07-21 1990-02-07 Elektroschmelzwerk Kempten GmbH Pressure-sintered polycrystalline composites based on hexagonal boron nitride, oxides and carbides
US5389587A (en) * 1988-11-10 1995-02-14 Kabushiki Kaisha Kouransha BN-group ceramics having excellent resistance to loss by dissolving
GB2256434A (en) * 1991-06-04 1992-12-09 Rolls Royce Plc Abrasive medium
US5355637A (en) * 1991-06-04 1994-10-18 Rolls-Royce Plc Abrasive medium
DE102012104049A1 (en) * 2012-05-09 2013-11-28 Esk Ceramics Gmbh & Co. Kg Boron nitride agglomerates, process for their preparation and their use
US9371449B2 (en) 2012-05-09 2016-06-21 3M Innovative Properties Company Boron nitride agglomerates, method for the production thereof and use thereof

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