Magnetic Component Engineering

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High Performance Advanced Ceramics


Advanced Ceramics provide exceptional resistance to corrosion, mechanical wear, and abrasion.  These materials have a low coefficient of thermal expansions and the ability to withstand high temperatures.

Properties

Units

Test

85

995

998

K1145

Density

g/cc

ASTM C20

3.4

3.9

3.9

5.7

Color

**

**

WHITE

IVORY

IVORY

IVORY

Water Absorption

%

ASTM C373

0

0

0

0

Elastic Modulus

GPa

ASTM C848

220

370

350

200

Possion's Ratio

**

ASTM C848

0.22

0.22

0.22

0.3

Flexural Strength

MPa

ASTM F417

296

379

360

620

Compressive Strength

MPa

ASTM C773

1930

2600

2400

1750

Fracture Toughness

MPa* m1/2

NOTCHED BEAM

3-4

4-5

4-5

11

Hardness

GPa

ROCKWELL 45N KNOOP 1000g

73 9.4

83 14.1

83 14.1

77 12

Thermal Conductivity

W/mK

ASTM C408

16

30

30

2.2

CTE 25-1000

10^6/°C

ASTM C372

7.2

8.2

8.2

10.1

Specific Heat

J/kg-K

ASTM E1269

920

880

880

600

Thermal Shock

?Tc

NOTE 3

300

200

200

350

Dielectric Strength

ac-kv/mm (6.25mm)

ASTM D116

8.3

8.7

8.7

9.4

Dielectric Loss

25°C @1MHz

ASTM D2520

0.0009

0.0001

0.001

0.001

Volume Resistivity

25°C 500°C ohm-cm 1000°C

ASTM D1829

<10^14 4x10^8

>10^14 2x10^10 2x10^6

>10^14 2x10^10 5x10^7

>10^13 5x10^4 <10^2