Sinter Grade Boron Carbide Description:
Sinter Grade Boron Carbide Powders are specially sized to aid in the manufacturing of sintered ceramic parts. They are typically fine powders with an average particle size of fewer than 10 microns and a specially tailored size distribution.
Features:
-High Hardness
-Abrasion / Wear-Resistance
-Fracture Toughness
-Chemical Inertness
-High Neutron Absorbing Cross Section
Sinter Grade Boron Carbide Specifications:
Properties
|
Units
|
Value
|
Physical
|
Chemical Formula
|
-
|
B4C
|
Density, r
|
g/cm3
|
2.51
|
Color
|
-
|
black or dark gray
|
Crystal Structure
|
-
|
hexagonal
|
Water Absorption
|
% @R.T.
|
ng
|
Hardness
|
Vickers @ R.T. (GPa)
|
36
|
Hardness
|
knoop (kg/mm2)
|
ng
|
Mechanical
|
Compressive Strength
|
GPa @ R.T.
|
2.9
|
Tensile Strength
|
MPa@980þC
|
155
|
Modulus of Elasticity
|
GPa@ R.T
|
445
|
(Young's Mod.)
|
Flexural Strength (MOR)
|
MPa @ R.T.
|
375
|
Poisson's Ratio, u
|
@R.T.
|
0.19
|
Fracture Toughness, KIc
|
MPa x m1/2
|
ng
|
Thermal
|
Max. Use Temperature
|
ºC
|
2450
|
(* denotes inert atm.)
|
Thermal Shock Resistance
|
DT (ºC)
|
ng
|
Thermal Conductivity
|
W/m-K @ R.T.
|
28
|
Coefficient of Linear Thermal Expansion, al
|
10-6 K-1 (~25ºC through ±1000ºC)
|
5.54
|
Specific Heat, cp
|
J kg-1 K-1 @ R.T.
|
945
|
Electrical
|
Dielectric Constant
|
1MHz @ R.T.
|
ng
|
Dielectric Strength
|
kV/mm
|
ng
|
Electrical Resistivity
|
Wcm @ R.T.
|
ng
|
Sinter Grade Boron Carbide Applications:
- Reaction Bonded Parts
-Sintered Parts
-Technical Ceramics
-Body and Vehicle Armor
-Wear Parts
Chemical Properties
1. General Industrial Grades Available: B + C= 94% min. (B= 77% min. & C= 17% max.) and B + C= 98% min. (B= 74% min. & C= 24% max.)
2. Standard Grade: B= 74% min., and C= 24% max., B+C= 98% min.
3. Nuclear Grade: B= 76.5% min.
4. High Purity Grade: B= 75-80%
Sinter Grade Boron Carbide Packaging:
Our Sinter Grade Boron Carbide is carefully handled during storage and transportation to preserve the quality of our product in its original condition.