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Silicon Carbide (Sic) Powder

Silicon Carbide, is used due to its properties of high hardness (Mohs hardness

Black Silicon Carbide (SiC) Properties

  • High Hardness
  • Chemical Inertness
  • High Thermal Conductivity
  • Abrasion / Wear Resistance
  • Abrasive
  • Low Coefficient of Thermal Expansion
  • Thermal Shock Resistance
  • Strength at High Temperature Ranges
  • Electrical Conductivity
  •  

 

Black Silicon Carbide (SiC) Application's

  • Abrasives
  • Sintered Parts
  • Hot-Pressed Parts
  • Reaction Bonded Parts
  • Metal Matrix Composites
  • Wire-saw
  • Body Armor
  • Vehicle Armor
  • Heat Transfer / Thermal Management
  • High Temp Sensors
  • Ceramic Wear Parts
  • Refractory
  • Grinding
  • Milling
  • Lapping

 

 

Typical Silicon Carbide (SiC) Properties Sic is an artificial (man-made) mineral known for its very high hardness and abrasion resistance. Common applications include pump seals, valve components, and wear-intensive applications such as rollers and paper industry retainers.

 

Properties

Units

Test

Value

Physical

Chemical Formula

-

-

a-SiC

Density, r

g/cm3

ASTM C20

3.21

Color

-

-

dark gray

Crystal Structure

-

-

hexagonal

Water Absorption

% @R.T.

ASTM C373

0.0

Hardness

Moh's

-

9 - 10

Hardness

knoop (kg/mm2)

Knoop 100g

2800

Mechanical

Compressive Strength

MPa @ R.T.

ASTM C773

1725 - 2500

Tensile Strength

MPa @ R.T.

ACMA Test #4

310

Modulus of Elasticity
(Young's Mod.)

GPa

ASTM C848

476

Flexural Strength (MOR)

MPa @ R.T.

ASTM F417

324

Poisson's Ratio, u

 

ASTM C818

0.19

Fracture Toughness, KIc

MPa x m1/2

Notched Beam Test

4.0

Thermal

Max. Use Temperature
(* denotes inert atm.)

ºC

No load cond.

1400

Thermal Shock Resistance

DT (ºC)

Quenching

350 - 500

Thermal Conductivity

W/m-K @ R.T.

ASTM C408

41

Coefficient of Linear Thermal Expansion, al

mm/m-ºC (~25ºC through ±1000ºC)

ASTM C372

5.12

Specific Heat, cp

cal/g-ºC @ R.T.

ASTM C351

0.15

Electrical

Dielectric Constant

1MHz @ R.T.

ASTM D150

10.2

Dielectric Strength

kV/mm

ASTM D116

-

Electrical Resistivity

Wcm @ R.T.

ASTM D1829

108

 

 

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