FR2367019A1 - Procede de fabrication de produits en nitrure de bore hexagonal - Google Patents

Procede de fabrication de produits en nitrure de bore hexagonal

Info

Publication number
FR2367019A1
FR2367019A1 FR7630497A FR7630497A FR2367019A1 FR 2367019 A1 FR2367019 A1 FR 2367019A1 FR 7630497 A FR7630497 A FR 7630497A FR 7630497 A FR7630497 A FR 7630497A FR 2367019 A1 FR2367019 A1 FR 2367019A1
Authority
FR
France
Prior art keywords
boron nitride
mixt
compsn
boric acid
urea
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.)
Granted
Application number
FR7630497A
Other languages
English (en)
Other versions
FR2367019B1 (fr
Inventor
Rafail Yakovlevich Popilsky
Evgeny Petrovich Sadkovsky
Irina Grigorievna Kuznetsova
Et Dmitry Nikola Poluboyarinov
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.)
MO KHIM T
Original Assignee
MO KHIM T
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 MO KHIM T filed Critical MO KHIM T
Priority to FR7630497A priority Critical patent/FR2367019A1/fr
Publication of FR2367019A1 publication Critical patent/FR2367019A1/fr
Application granted granted Critical
Publication of FR2367019B1 publication Critical patent/FR2367019B1/fr
Granted 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)
  • Ceramic Products (AREA)

Abstract

Le procédé de fabrication de produits faisant l'objet de l'invention consiste en ce que la poudre fine de nitrure de bore hexagonal est prise en combinaison avec une composition à bas point de fusion contenant du bore et de l'azote, puis le mélange est comprimé à une température de 80 à 160 degrés C, sous une pression suffisante pour que la composition fondue pénètre dans les pores du demi-produit et les remplisse. De plus, avant la cuisson à haute température, le demi-produit obtenu est chauffé dans une atmosphère d'ammoniac jusqu'à une température de 1.000 à 1.400 degrés C. Les produits fabriqués par ce procédé trouveront des applications étendues dans divers domaines de la technique, comme matériaux à haut caractère réfractaire, isolants thermostables, diélectriques pour divers dispositifs électroniques, matériaux antifriction, etc
FR7630497A 1976-10-11 1976-10-11 Procede de fabrication de produits en nitrure de bore hexagonal Granted FR2367019A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7630497A FR2367019A1 (fr) 1976-10-11 1976-10-11 Procede de fabrication de produits en nitrure de bore hexagonal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7630497A FR2367019A1 (fr) 1976-10-11 1976-10-11 Procede de fabrication de produits en nitrure de bore hexagonal

Publications (2)

Publication Number Publication Date
FR2367019A1 true FR2367019A1 (fr) 1978-05-05
FR2367019B1 FR2367019B1 (fr) 1979-02-23

Family

ID=9178585

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7630497A Granted FR2367019A1 (fr) 1976-10-11 1976-10-11 Procede de fabrication de produits en nitrure de bore hexagonal

Country Status (1)

Country Link
FR (1) FR2367019A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111377742A (zh) * 2020-03-23 2020-07-07 河北工业大学 一种三维多孔六方氮化硼的无模板合成方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111377742A (zh) * 2020-03-23 2020-07-07 河北工业大学 一种三维多孔六方氮化硼的无模板合成方法
CN111377742B (zh) * 2020-03-23 2022-04-26 河北工业大学 一种三维多孔六方氮化硼的无模板合成方法

Also Published As

Publication number Publication date
FR2367019B1 (fr) 1979-02-23

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Legal Events

Date Code Title Description
ST Notification of lapse