Accumet Materials,
Co. offers a wide range of ceramics, graphite, quartz and corrosion
resistant metals used to
produce crucibles, trays, lids, furnace furniture and lab-ware for
use in extremely corrosive laboratory environments
to 2000 ° C.
Accumet’s materials
provide exceptional performance during heat treating, calcining,
metal processing, glass
processing, electron beam liners and other high temperature
processes found in laboratories and industry.
These dense, pore-free ceramics are gas tight and extremely
resistant to high temperatures in both oxidizing
and reducing atmospheres.
A broad range of
ceramic materials are available in standard circular dishes,
combustion boats, rectangular trays,
lids, crucibles and rods. Accumet has many sizes already tooled
which will reduce cost and delivery time.
MATERIAL PROPERTIES
| |
|
|
MAX. TEMP(°C) |
THERMAL CONDUCTIVITY
W/m-K @ R.T. |
THERMAL SHOCK RESISTANCE ΔT (°C) |
TENSILE STRENGTH MPa @ R.T. |
Electrical Resistivity Ω-cm @ R.T. |
RESISTANCE TO ACIDS, ALKALIS AND SALTS |
Description |
| |
|
ALUMINA |
1950 |
29-23
(20-100 °C) |
200 |
260-300 |
>1014 |
Excellent |
Exhibits
dimensional strength, temperature, chemical and wear resistance |
| |
|
ALUMINA-TITANIA |
1900 |
33-28
(20-100 °C) |
>1000 cycles |
225 |
|
Very good |
Exhibits
excellent thermal shock resistance because of its low thermal
expansion and good mechanical strength. |
| |
|
ALUMINA-ZIRCONIA |
2000 |
26-18
(20-100 °C) |
1000 cycles |
260 |
|
Very Good |
Exhibits high
fracture toughness, excellent wear and erosion resistance |
| |
|
CORDIERITE |
1000 |
3.0 |
500 |
25.5 |
1014 |
Very Good |
Excellent
chemical, and good thermal shock resistance |
| |
|
GRAPHITE |
3650 (inert atm) |
24 |
200-250 |
4.8 |
7 x 10 -3 |
Very Good |
High temperature
resistance in inert atmosphere |
| |
|
MAGNESIA |
1200 |
8-32 |
400 |
|
|
Very good |
Good thermal
conductivity |
| |
|
MULLITE |
1700
|
3.5 |
300 |
103.5 |
1013 |
Good |
Good thermal
shock resistance, good mechanical strength at high temperatures |
| |
|
QUARTZ |
1200
|
1.4 |
>1400 |
48 |
6 X 1010 |
Good |
Excellent
thermal shock resistance |
| |
|
Clay-Bonded SiC |
1400 |
|
Good |
44 |
|
|
Excellent
thermal shock resistance |
| |
|
Zircon |
1500 |
|
Very Good |
|
|
Good |
90% Zr ;
Cost less than
pure Zirconia |
| |
|
ZIRCONIA |
2000 |
2.7 |
280-360 |
248 |
>1013 |
Very Good |
Excellent
mechanical and high temperature resistance |
In addition to our
standard line, Accumet can supply custom size crucibles and other
forms to customer specifications. For a prompt quotation,
call, fax, e-mail or write your requests and include dimensions,
tolerances and description of the application. Our engineers
will recommend the material best suited for your application.
|
Accumet Materials also
offers standard and fabricated metal crucibles, including
platinum and tantalum.
Graphite EB Crucibles
also available – contact us for additional information. |
Call
us at 914.762.1540, Fax us at 914 762-1291 or
E-Mail us at
sales@accumetmaterials.com
