Ceramic products based on boron nitride (BN)

Boron nitride ceramics

Boron nitride ceramics

Boron Nitride CeramicsBoron nitride based ceramics are widely used in aircraft and rocket technology, in mechanical engineering and glass industry, in the chemical industry, energy and metallurgy. In the production of high-temperature equipment, crucibles, insulators and electric vacuum devices based on boron nitride are increasingly used.

The unique combination of exceptional thermal, physical and chemical characteristics of boron nitride-based ceramics makes it an ideal material for solving complex problems and achieving a wide range of industrial goals.

Areas of use:

  • Crucibles, insulators and high temperature ceramics;
  • High temperature lubricants;
  • Synthesis of superhard substances;
  • Electrovacuum and semiconductor instrument making.

Suggested modifications of boron nitride: HEXOGONAL (α) - h-BN, (white graphite, a talc-like powder, has a hexagonal, graphite-like crystalline structure and has semiconductor properties.

Characteristics:

  • Heat resistance;
  • Non toxicity;
  • Chemical inertness;
  • Resistance to oxidation (up to 700 ° C);
  • High dielectric strength;
  • Low dielectric constant.

LLC NPO GKMP delivers a wide range of heat-resistant ceramics based on hexagonal boron nitride (various shapes and sizes, taking into account the requirements and wishes of the customer).

Hot Pressed Boron Nitride (BN)


Sructure

Measure

BN˃99%

BN˃98%

BN+SiC+ZrO2

BN+AlN

Binder

 

self-binding

B2O3

AlBO3

AlBO3

Density

(g/cm3)

1.9-2.0

2.1-2.2

2.3-3.0

2.5-2.6

Resistivity (at 25 ° C)

(Ω/cm)

>1014

˃1013

˃1012

˃1014

Maximum operating temperature

Oxidizing medium

(°С)

900

900

900

900

Inert gas

(°С)

2300

2000

1700

2100

High vacuum

(°С)

1800

1800

1700

1900

Bending strength

(MPа)

25

75

100

130

Compressive strength

(MPа)

100

100

300

250

Thermal expansion coefficient 25-1000 ° C

10-6/K

0-2

2.0

4.0

4.5

Thermal conductivity

(V/mK)

50

30

40

60

We supply heat-resistant ceramics based on hexagonal boron nitride of various shapes and sizes, taking into account the requirements and wishes of the customer.

Pyrolytic boron nitride (PBN -based) ceramics products

Boron nitride ceramics

Boron nitride ceramics

Pyrolytic boron nitride (PBN -based) ceramics productsPBN-based products are widely used in high-temperature technology products. One of the most important characteristics of boron nitride is that this substance gives any product heat resistance, density and stability.

PBN-based ceramics products are widely used in aircraft and rocket technology, in mechanical engineering and glass industry, in the chemical industry, energy and metallurgy. In the production of high-temperature equipment, crucibles, insulators and electric vacuum devices based on boron nitride are increasingly used.

The unique combination of exceptional thermal, physical and chemical characteristics of boron nitride-based ceramics makes it an ideal material for solving complex problems and achieving a wide range of industrial goals.

Pyrolytic Boron Nitride (PBN) is obtained by gas-phase chemical deposition. Compared to the conventional boron nitride compound, p-BN has a much higher level of purity and a number of advantages.

Areas of use:

  • High vacuum processes (as a material for crucibles, boats, pipes, flasks, etc.);
  • Processes for growing crystals (including complex semiconductor crystals);
  • In the field of molecular beam epitaxy;
  • The field of special equipment and electronics (production of integrated circuits, windows for outputting microwave energy, etc.);
  • Synthesis and growing of semiconductors.

Suggested modifications of boron nitride: HEXOGONAL (α) - h-BN, (white graphite, a talc-like powder, has a hexagonal, graphite-like crystalline structure and has semiconductor properties.

Characteristics:

  • High degree of purity (˃99.99%);
  • High temperature resistance;
  • Chemical inertness;
  • High thermal conductivity;
  • Radio transparency;
  • Non toxicity.

NPO GKMP LLC supplies a wide range of heat-resistant ceramics based on pyrolytic boron nitride (various shapes and sizes, taking into account the requirements and wishes of the customer).

Pyrolytic boron nitride

Properties

Measure

Value

Density

(g/cm3)

1.95-2.20

Lattice constant

μm

a: 2.504x10-10

c:6.692x10-10

Resistivity

(Ω/cm)

3.11x 1011

Tensile strength (ab)

(Н/mm2)

153.86

Bending strength

c

(Н/mm2)

243.63

ab

(Н/mm2)

197.76

Coefficient of elasticity

(Н/mm2)

235690

Thermal conductivity

200

(W/mК)

a:60

c:2.6

900

(W/mК)

a:43.7

c:2.8

Dielectric strength (at room temperature)

(kV/mm)

56


We supply heat-resistant ceramics based on hexagonal boron nitride of various shapes and sizes, taking into account the requirements and wishes of the customer.

Documents

QMS Certificates and permissions Product overview Support information
Certificate of conformity.sheet 1
Certificate of conformity.sheet 2
Quality certificate. Road equipment
+7 (4832) 58-19-66
Development — Waydev