FELDCO International
FELDCO International
[
California,
United States ]
California, United States
B4C
Grain
Blocky
ANSI
5 mesh to 3 micron
Bonded Abrasives
Ton
25
1 day to 2 weeks, depending on grade and packaging you choose.
Yes
L/C, T/T
Introduction
Boron Carbide B(4)C is one of the hardest materials known, ranking third behind diamond and cubic boron nitride.
It is the hardest material produced in tonnage auantities. Originally discoverd in mid 19th century as a byproduct in the production of metal bordes, boron carbide was only studied in detail since 1930.
Boron Carbide powder (B4C) is mainly produced by reacting carbon with B2O3 in an electric arc furnace, through Carbo-Thermal reduction or by gas phase reactions. For commercial use Boron Carbide B4C powders usually need to be milled and purified to remove metallic impurities.
Advantages
FELDCO INTERNATIONAL fully dense Boron Carbide (B4C) is produced by hot pressing and is characterized as follows:
Light Weight
High Hardness
Erosion Resistance
High Modulus
Neutron Absorber
Typical properties of Boron Carbide B(4)C
Density (g.cm-3) 2.52
Melting Point (°C) 2445
Hardness (Knoop 100g) (kg.mm-2) 2900-3580
Fracture Toughness (MPa.m-½) 2.9 - 3.7
Young's Modulus (GPa) 450 - 470
Electrical Conductivity (at 25°C) (S) 140
Thermal Conductivity (at 25°C) (W/m.K) 30 - 42
Thermal Expansion Co-eff. x10-6 (°C) 5
Thermal neutron capture cross section (barn) 600
