Boron Carbide Powders

Boron Carbide is a high performance abrasive material with chemical and physical properties similar to diamond (chemical resistance and hardness). It is so hard that is has been nicknamed "Black Diamond", and has become one of the leading grinding materials. Ceramic grades as well as nuclear grades for neutron absorption are available.

Boron carbide powder - main application areas:

Availability of particle sizes:
Boron carbide grit sizes correspond to the specifications of the
Federation of European Producers of Abrasive Products (FEPA):

F100 (150/106 mkm)F220 (75/45 mkm)F360 (40/12 mkm)
F800 (14/2 mkm)
F120 (125/90 mkm)F240 (70/28 mkm)F400 (32/8 mkm)
F1000 (10/1 mkm)
F150 (106/63 mkm)F280 (59/22 mkm)F500 (25/5 mkm)F1200 (7/1 mkm)
F180 (90/53 mkm)F320 (49/16.5 mkm)F600 (19/3 mkm)F1500 (<5 mkm)
Other sizes in FEPA and USA Mesh System are available on request.
 

Boron Carbide for Wire Saw Slicing:  Our boron carbide powder is specifically developed to deliver the optimum performance and excellent process control in wire saw slicing of the sapphire products. Starting with chemistry of the raw materials and continue through every manufacturing step: furnacing, crushing, chemical cleansing, crushing (with grain shaping emphasis), and multi-stage grading process every effort is made to insure proper powder performance.


UKA GradeTypical FEPA GradeTypical Application
B4C-SWSF360 (40/12 mkm) or F400 (32/8 mkm),Wire saw slicing
B4C-SPF400 (32/8 mkm),Lapping

 

Technical data
• Appearance (dry state):Color
Black
• Chemical composition:Chemical formula:
B4C Application

GradeAbrasive CeramicRefractoryNuclear

B + C min.98
9498

B (Boron) min.74747776

C (Carbon) max.24221724

B2O30.50
1.00.1

Fe (Iron) max.0.2
0.50.1

Si (Silicon)-
0.30.01

N (Nitrogen)-
0.50.5
• Physical data:





Knoop hardness (0.1)
3000

Mohs hardness
< 9.5 Note: Diamond’s Mohs hardness is 10

Specific gravity:
2.51

Melting point:
2723 °F

Structure:
Monocrystalline

 Common Nuclear Grades:


UKA GradeAverage
Particle Size		Typical ApplicationNotes
1.NG112M112 micronAdditive to concreteB<75%
2.NG36L36 micronB<70%
3.NG24H24 micronNuclear Shielding Panels, Reaction Control Rods,
Etc.		B>76%
4.NG24HE24 micronB>76% + Enhanced Heat Transfer Capability
5.NG100H100 micronB>76%
6.NG100HE100 micronB>76% + Enhanced Heat Transfer Capability
7.NG6H6 micronB>76%
8.NG6HE6 micronB>76% + Enhanced Heat Transfer Capability

Diamond’s Mohs hardness is 10.

*Barn is unit of area equal to 10-24 sq. centimeters, used to measure cross sections in nuclear physics.
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