Technical Specifications
Description
Unit

Techno
Cera
AL99.5

Techno
Cera
AL98

Techno
Cera
AL95/96

Techno
Cera
AL90

Techno
Cera
Zirconia

Techno
Cera
Alpha SIC

Density

gm/cc

3.90 ± 0.05

3.80 ± 0.05

3.70 ± 0.05

3.50 ± 0.05

5.75 ± 0.05

3.1+/-0.05

Porosity

%

Nil

Nil

Nil

Nil

Nil

Nil

Alumina Content

%

99.5

98

95

90

--

--

Zirconia Content

%

--

--

--

--

90-95

--

SIC Titania Content

%

--

--

--

--

--

100

Tensile Strength

kpsi

36 ± 3k

32 ± 3

25 ± 3

24 ± 3

25 ± 3

50+/-4

Compressive Strength

kpsi

360 ± 10

325 ± 10

300 ± 10

280 ± 10

300 ± 10

380+/-10

Transverse Breaking Strength

kpsi

50 ± 4

48 ± 4

48 ± 4

46 ± 4

85 ± 2

55+/-4

Hardness

Vickers HV1

2000

1900

1800

1600

1700

2600

Surface Finish on lapped face

Micron

Less than 0.3

Less than 0.3

Less than 0.3

Less than 0.3

Less than 0.3

Less than 0.3

Flatness on polished face

Light
Band

Within 2

Within 2

Within 2

Within 2

Within 2

Within 2

Parallelism on lapped face

Micron

Within 20

Within 20

Within 20

Within 20

Within 20

Within 20

Colour

--

Ivory / White

White / Pink

White / Pink

White

Yellow/White

Black

Applications

--

Chemical Seals, Sleeves, Crucibles  tubes, Wire & thread guides

Ceramic Ferrules, choke beans, welding nozzles, Seal faces

Ceramic Seal faces, Thread & Wire drawing guides, Igniters

Grinding Media Balls, Wear Resistant Tiles & Ball mill Liners, Seal faces

Wire drawing cones, rings & guides

Seal faces, Armor tiles