99BN Boron Nitride Ceramic Tube / Sleeve / Pipe

Boron Nitride Specifications: >Outside Diameter: 6.40 mm >Inside Diameter: 1.70 mm >Wall Thickness: 2.35 mm >Length: 100 mm >Condition: Hot Pressed >Custom size is available. White in color. Hexagonal Boron Nitride has a microstructure similar to that of Graphite. In both materials, this structure, made up of layers of tiny platelets, is responsible for excellent machinability and low-friction properties. we called hexagonal boron nitride (HBN) or white graphite. Features of Boron Nitride: 1.High thermal conductivity 2.Low thermal expansion 3.Good thermal shock resistance 4.High electrical resistance 5.Low dielectric constant and loss tangent 6.Microwave transparency 7.Non toxic 8.Easily machined — non abrasive and lubricious 9.Chemically inert 10.Not wet by most molten metals

Hexagonal Boron Nitride has a microstructure similar to that of Graphite. In both materials this structure, made up of layers of tiny platelets, is responsible for excellent machinability and low-friction properties. we called hexagonal boron nitride (HBN) or white graphite.

Boron nitride can be long-term used at 1800 degrees under vacuum atmosphere. With gas protection, Boron Nitride can be used at 2100°. Boron Nitride is with high thermal shock resistance, no cracks under extreme cold & high temperature. If you take out Boron Nitride from 1000 degree furnace and colding it within short minutes. It still won't break even repeat this test with 100 times. Material Properties： * High thermal conductivity * Excellent thermal shock resistance * Low thermal expansion * Exceptional heat resistance * Good Chemical Inertness * High electrical resistance * Low dielectric constant and loss tangent * High volume resistivity * Excellent machinability Grades 5 grades of boron nitrides are involved in Boron Nitride product series. * BN99 ● CABN ● ALBN ● ZRBN ● ZABN ● SB

Electric 12V 13V Alumina Ceramic Heating Element Heater Rod for Oxygen Sensor Advantages Ceramic Heater for Oxygen senster is used for heating oxygen sensors that detect the exhaust gas of vehicles and is equipped to most of automobile gasoline engines. Because the temperature can be rapidly raised, it is possible to activate the sensor immediately after the engine start which provides useful feedback to reduce emissions. 1.Based material: a.white alumina ceramic b.the content of alumina is no less than 95%. c.the tungsten slurry is printed on the ceramic tape, laminated by hot pressing, and thensintered under the protection of a hydrogen atmosphere at 1650 ° C 2.Ni-wires:N6 Ni-wires with 0.6mm diameter 3.Brazing material: siliver-copper braging alloy